Rotex 70 Series Technische Daten

70 SERIES DRIVE HEAD ASSEMBLY

NO. 25200

LUBRICATION - DRIVE HEAD

Location:

Filler spout is located on the inspection plate assembly on

opposite side from pinion shaft (119).

Oil:

ISO grade 150 hydraulic oil with rust and oxidation inhibitors

and anti-wear additives. Viscosity to be 150-220 cSt @ 40 °C. The

base oil viscosity at the bearing operation temperature must be

a minimum of 40 cSt.

Quantity:

Four gallons (15.2 liters) – Drain oil by removing plug (82) from

the housing assembly (77) and two plugs (87) in the pump

sump assembly (84). Remove breather vent (127) to equalize

pressure when draining.

Check oil flow at sight tube (92) located on inspection plate

assembly (94). Oil flow will be a small stream and begin

approximately one minute after startup.

Oil Change Interval:

Every 4000 operating hours

LUBRICATION - CRANKPIN BEARING

Location:

Grease at single fitting located on top of crankpin.

Grease:

Extreme pressure (EP) multipurpose type with NLGI No.2 rating

and base oil viscosity of 160-240 cSt @40°C (nominal 875 SUS

@100°F). The minimum viscosity index of the base oil must be 95.

CAUTION: DO NOT USE GREASE CONTAINING MOLYBDENUM

DISULFIDE ADDITIVES BECAUSE BEARING WILL BE DAMAGED.

NOTE: FOR BEARING OPERATING TEMPERATURES MORE THAN

140°F (60°C) THE BASE OIL VISCOSITY MUST NOT BE LESS

THAN 40 CST AT THE BEARING OPERATING TEMPERATURE.

Quantity:

25 grams or approximately 25 pumps from a standard

lever-type grease gun

Interval:

Every 750 operating hours

NOTE: THE LUBRICANTS AND SERVICE INTERVALS SPECIFIED

ARE FOR NORMAL OPERATION IN AREAS BETWEEN 40°F

AND 140°F (4°C-60°C). CONSULT ROTEX IF BEARING

TEMPERATURES ARE MORE THAN 140°F (60°C) OR THE

MACHINE IS OPERATED UNDER SEVERE CONDITIONS.

MAINTENANCE INSTRUCTIONS

Effective April 2016

www.rotex.com

70 SERIES DRIVE HEAD ASSEMBLY

NO. 25200

The 70 Series Rotex drive head has been carefully designed

to require a minimum of maintenance. All rotating parts are

mounted on anti-friction bearings, and parts which are subject to

wear are designed to be replaceable.

Repair work on the driving mechanism should be done in an

area relatively free of dust. Refer to the exploded drive head

assembly drawings when following the instructions below, and

prior to disassembling the mechanism. When making a complete

overhaul of the driving mechanism, it is generally good practice

to replace all bearings.

REMOVING DRIVE HEAD FROM MACHINE

1. Disconnect the discharge end horizontal drag link from the

box frame.

2. Remove grease fitting and threaded tube assembly (1A+1B)

and dust cover (2).

3. Remove lock wire (3) and eight cap screws (4) from the

clamping sleeve (5).

4. Place three of the removed cap screws in the tapped holes

(not shown on the drawing) provided in the clamping sleeve

(5), and use them as push screws to loosen and remove the

sleeve from the head end plate (6).

5. Remove the belt guard and v-belts. Inspect the v-belts for wear

or deterioration at this time.

6. Lift the box frame assembly up and clear of the drive head.

7. Remove the drive head from the base of the machine after

removing the mounting nuts and bolts.

8. Drain oil by removing drain plug (82) from the housing

assembly (77) and two drain plugs (87) in the pump sump

assembly (84).

DISASSEMBLY OF DRIVE HEAD

CRANKPIN ASSEMBLY REMOVAL

1. Remove lock wire (20) and 12 cap screws (19) and lock washers

(18) from the crankshaft (17) and remove

crankpin assembly.

2. Remove baffle (15A) from the crankshaft.

3. Remove gasket (16) from the crankshaft.

CRANKPIN BEARING REMOVAL

1. Remove flat head screw (15) and crankpin bearing spacer lock

(14) from crankpin bearing housing (9).

2. Remove snap ring (11) from the crankpin.

3. Press the crankpin out of the crankpin bearing (10).

4. Remove felt seal (8) from the crankpin.

5. Press the crankpin bearing from the crankpin bearing housing.

MAINTENANCE INSTRUCTIONS

REMOVAL OF PINION SHAFT ASSEMBLY

1. Remove ROTEX sheave (111), bushing (110), and key (120)

from the pinion shaft (119).

2. Remove the inspection hole plate (94) from the drive head

housing (77) by removing ten cap screws (96) and lock

washers (97). Remove the gasket (95) from the inspection

hole plate (94).

3. Remove the oil seal cap (107) from the drive head housing

by removing the 10 cap screws (109) and lock washers (108).

If the felt seal (102) remains on the pinion shaft, remove and

replace it in the oil seal cap.

4. Remove lock wire (125), seven cap screws (124) and lock

washers (123) in the pinion shaft housing (122).

5. Pull the pinion shaft assembly out of the drive housing. Care

should be taken at this time not to damage the shims (121).

They should be used in reassembly unless new shims are

available. If the pinion shaft assembly does not come out

easily, drive the pinion shaft out of the drive housing by

tapping from the pinion end with a long piece of wood.

DISASSEMBLY OF PINION SHAFT ASSEMBLY

1. Remove cap (101) from pinion shaft housing (122) by

removing lock wire (105) and five cap screws (104) and lock

washers (103).

2. Remove lock nut (100) and lock washer (99) from the

pinion shaft (119).

3. Drive pinion shaft (119) and pinion and inboard bearing

(117) out of the pinion shaft housing (122) by tapping from

the sheave end.

4. Remove lock wire (112), three cap screws (113), lock

washers (114) and bearing clamp plate (115) from the pinion

shaft (119).

5. Remove the beveled pinion (116) from the pinion shaft and

remove key (118).

6. Pull the inboard bearing (117) from the pinion shaft.

7. Pull the outboard bearing (98) out of the pinion shaft

housing (122).

REMOVAL OF CRANKSHAFT ASSEMBLY

1. Remove pump sump assembly (84) by removing 10 cap

screws (86) and lock washers (85).

2. Remove lock wire (76), four cap screws (75) and lock washers

(74), and remove oil pump assembly from the oil pump drive

flange (56).

3. Remove the eight cap screws (31) and lock washers (32) from

the drive head cover (33).

4. By means of the lift yokes on the drive head housing cover, lift

the crankshaft assembly straight up and out of the housing.

DISASSEMBLY OF OIL PUMP

1. Remove three cap screws (72) and separate the oil pump

housing cover (62) from the oil pump body (73).

2. Remove the snap ring (63).

3. Remove the eccentric ring (66) and outer geroter (65). Remove

friction plug (68) and spring (67).

4. Remove inner geroter (64).

5. Remove Woodruff key (71) from the pump shaft (70).

6. Remove bottom snap ring (63).

7. Remove pump shaft (70) from oil pump body (73).

DISASSEMBLY OF CRANKSHAFT ASSEMBLY

1. Remove oil pump drive flange (56) by removing lock wire (59)

and three cap screws (58) and lock washers (57).

2. Remove lower rest bearing (53) from crankshaft (17).

3. Remove lower bearing spacer (52) from crankshaft.

4. Remove minor balance weight casting (49) and lower bearing

(51) from crankshaft.

5. Remove bearing (51) from minor balance weight casting.

6. Remove bearing (47) from crankshaft. It this bearing comes

out with the minor balance weight casting, remove it from

the casting.

7. Remove major balance weight assembly (38) from the

crankshaft and remove flat head Allen Head screw (22) and

crankshaft key (21).

8. Remove major balance top sleeve (25) from major balance

weight casting.

9. Remove oil baffle (26) from drive head cover (33) by removing

lock wire (28) and eight cap screws (29) and lock washers (27).

10. Remove drive head cover (33) from the crankshaft (17).

11. Remove upper crankshaft bearing (23) from the crankshaft.

12. The beveled ring gears (43 and 48) are bolted to the two

balance weights, and will be removed with the balance

weights.When the drive head has been completely

disassembled, all parts should be checked, and worn or

damaged parts should be replaced.

DRIVE HEAD ASSEMBLY

After inspecting and replacing worn and damaged parts, the

drive head should be reassembled as follows:

CRANKSHAFT ASSEMBLY

1. Check the fit of the crankshaft key (21) in the keyways of the

crankshaft (17) and the major balance flange (39).The key

must be a tight fit in both of these keyways. Any looseness will

require replacement of the worn part.

2. Clean out the oil hole through the center of the crankshaft (17)

by means of a wire rod with a cloth wrapped around the end.

3. Place the drive head cover (33) on the crankshaft.

4. Apply a light coat of motor oil to the inside surface of the drive

head cover and on the crankshaft.

5. Place the upper crankshaft bearing (23) on the crankshaft

and force into the drive head cover and onto the crankshaft

bearing journal.

6. Bolt the oil baffle (26) to the drive head cover using eight cap

screws (29) and lock washers (27). Run lock wire (28) through

the drilled heads of the cap screws. NOTE: Lip of oil baffle

must face away from the drive cover.

7. Insert the crankshaft key (21) in the crankshaft keyway and

lock in place with Allen Head screw (22).

8. Drive the major balance top sleeve (25) into the top of the

major balance weight (38).

9. Fit the major balance weight flange (39) into the major

balance weight (38).This is a force fit, and the flange may have

to be hammered with a soft hammer to force it in place.

10. Bolt the major balance flange (39) to the major weight with

6 cap screws (41) and lock washers (40). Run lock wire (42)

through the drilled heads of the cap screws.

11. Apply a light oil lubricant to the crankshaft.

12. By means of a hoist, lower the major balance weight casting

down on the crankshaft. Care should be taken to guide the

housing onto the crankshaft key.

13. Make certain that the seating surfaces of both the bevel ring

gear (43) and the major balance flange (39) are free of dirt,

debris and burrs. Bolt the bevel ring gear to the major balance

flange with 12 cap screws (45) and lock washers (44). Run lock

wire through the drilled heads of the cap screws. NOTE: Gears,

including the pinion, must be replaced in matched sets only.

14. Press the minor balance bearing (47) onto the crankshaft (17)

and force it down on the shaft until it is up against the major

balance flange (39).

15. Place the minor balance bearing spacer (50) on the crankshaft,

resting on the minor balance bearing (47).

16. Make certain that the seating surface of both the bevel ring

gear (48) and the minor balance weight casting (49) are free

of dirt, debris and burrs. Bolt the bevel ring gear to the minor

balance weight with 12 cap screws (45) and lock washers (44).

Run lock wire through the drilled heads of the cap screws.

17. By means of a hoist, lower the minor balance weight casting

(49) on the crankshaft and fit the casting on the minor

balance bearing (47).

18. Place the roller bearing (51) in the minor balance weight

casting (49) and press in place.

19. Place the lower bearing spacer (52) on the crankshaft against

the roller bearing (51).

20. Press the spherical roller bearing (53) onto the crankshaft. This

bearing should be pressed onto the shaft until it is up against

the lower bearing spacer.

21. Bolt the oil pump drive flange (56) to the bottom of the

crankshaft with three cap screws (58) and lock washers (57).

Run lock wire through the drilled heads of the cap screws.

OIL PUMP ASSEMBLY

1. Insert the pump shaft (70) through the pump body (73).

2. Place the lower lock ring (63) on the shaft.

3. Place the Woodruff key (71) in the shaft.

4. Place the inner geroter (64) on the shaft.

5. Place the top lock ring (63) in place on the shaft.

6. Place spring (67) and friction plug (68) in the outer

geroter (65).

7. Place the outer geroter (65) and eccentric ring (66) into the

pump body (73).

8. Install housing cover (62) on the assembly and bolt together

with three cap screws (72). Run lock wire through the drilled

heads of the cap screws.

PINION SHAFT ASSEMBLY

1. Check that the pinion shaft key (118) is a tight fit in the

keyway of both the pinion shaft (119) and the pinion gear

(116). Wear in the key or keyways will require replacement of

the worn parts.

2. Press the inboard bearing (117) onto the end of the pinion

shaft (119).

3. Install the beveled pinion (116) on the pinion shaft (119) and

lock in place with key (118).

4. Bolt the bearing clamp plate (115) to the end of the pinion

shaft (119) with three cap screws (113) and lock washers (114).

Run lock wire (112) through the drilled heads of the cap screws.

5. Press the outboard bearing (98) into the pinion shaft

housing (122).

6. Press the pinion shaft (119) into the housing, from the pinion

end, through the outboard bearing (98).

7. Install lock washer (99) and lock nut (100) on the sheave end of

the pinion shaft and tighten against the outboard bearing.

8. Attach cap (101) to the pinion shaft housing with 5 cap screws

(104) and lock washers (103). Run lock wire (105) through the

drilled heads of the cap screws.

CRANKPIN ASSEMBLY

1. Hand pack the crankpin bearing (10) with grease.

2. Apply oil to the outer race of the bearing.

3. Press the bearing into the crankpin bearing housing using an

8¼ in. diameter x ½ in. thick (210 mm x 13 mm) steel plate so

pressure is applied to the outer race only. The bearing will stop

on a machined ledge in the in the housing.

4. Turn the crankpin upside down so the shaft is up.

5. Apply oil to the felt seal (8) and install it in the crankpin groove.

6. Lift the crankpin bearing housing and bearing over

the crankpin.

7. Press the housing and bearing onto the crankpin using

a 4¼” ID x 5¼” OD (108 mm ID x 133 mm OD) steel pipe.

Apply pressure to the inner bearing race only.

8. Install the snap ring (11).

9. Install the crankpin bearing spacer (13), spacer lock (14)

and screw (15).

10. Fill the space between the bearing and bottom of crankpin

housing with grease.

11. Install the crankpin bearing assembly to the drive weight using

12 cap screws (19) and new lock washers (18).

DRIVE HEAD FINAL ASSEMBLY

1. Install the lower bearing rest casting (60) into the bottom of

the drive head housing, and bolt into place with 10 cap screws

(79) and lock washers (78).

2. Place the shims (55) and the lower bearing support collar (54)

into the lower bearing rest casting.The lower bearing support

collar is held in place by a self-locking pin (61) in the lower

bearing rest casting.

NOTE: THE SAME THICKNESS OF SHIMS WHICH WAS

REMOVED FROM THE DRIVE SHOULD BE USED AS A

STARTING POINT IN REASSEMBLY.

3. Apply Permatex Sealant (33A) to top cover flange. Insert guide

pins in holes in housing used for bolting top cover in place.

Position gasket (37) in place over guide pins on housing.

4. Lift the crankshaft assembly by means of two hoists attached

to the two lifting rings in the top cover and suspend it in

an upright position. Tap downward on the outer edge of

the minor weight to ensure it is completely seated on its

bottom bearing.

5. Rotate the minor balance weight 180 degrees opposite of the

major balance weight and lock in place by forcing a wooden

wedge between the two bevel ring gears.

6. Lower the crankshaft assembly into the drive head housing

by means of two hoists attached to the lift rings.When the

top cover comes within six inches of the top of the drive

housing, insert guide pins through the top cover holes,

screwed into the top of the drive head housing. (See Step 3)

These pins will allow the crankshaft assembly to be lowered

into place with the flange holes in alignment.

7. Lower the crankshaft assembly into place, guiding the

spherical roller bearing (53) into the lower bearing rest

casting (60).

8. Bolt the cover (33) to the drive head housing (77) by means of

8 cap screws (31) and lock washers (32). Run a chain through

the two lifting yokes on the cover. Place a hydraulic jack on

top of the crankshaft and jack against the chain in order to

seat the bottom crankshaft bearing.While applying pressure

with the jack, tap lightly on the cover and underside of the

drive housing.

9. Remove the wooden blocks from the ring gears, and position

the balance weight as follows:

The two balance weights must be in their correct relationship.

The major balance is keyed to the crankshaft, and therefore is

always in correct position.

The minor balance weight is free to rotate and must be

placed in the proper position prior to engaging the pinion

and gears.

The positioning of the balance weights in the drive head will

depend upon the mounting of the drive head on the screener.

Figure 1 shows the correct positioning for each of the four

possible drive mountings.

To get the balance weights to move in the proper position,

lift the opposite side of the drive head housing and allow

the balance weights to swing into their correct position by

gravity. When the balance weights are in their proper position,

they should be locked in place by means of a wooden wedge

placed between the two ring gears.The bevel pinion can then

be engaged with the two ring gears.

10. With shims (121) in place, insert the pinion shaft assembly

into the side of the drive head housing, and bolt in place with

seven cap screws (124), and washers (123).

SETTING CLEARANCE BETWEEN

GEARS AND PINION

The backlash between the ring gears and pinion should be set

to the figures in Table 1, depending on the method being used.

The vertical adjustment for gear alignment is accomplished

by means of shims (55) which are placed between the lower

bearing rest casting (60) and the lower bearing support collar

(54).

The horizontal adjustment for backlash between the pinion and

the gears is accomplished by means of shims (121) between the

pinion shaft housing (122) and the drive head housing.

Table 2 shows the color coding for shim thickness.

To check the backlash between gears, first lock the pinion shaft

by clamping the shaft to a threaded rod which has been inserted

in one of the tapped holes in the pinion housing. If measuring

directly on the gear teeth, insert a dial indicator into the drive

head housing through the inspection port, so that the indicator

probe is in contact with the face of a tooth on the bottom ring

gear.

If using the ROTEX Backlash Checking Kit, thread the rod into

the tapped hole in the side of the minor weight hub and tighten

slightly. The rod should protrude through the inspection port at

right angles to the machined face of the inspection port. Mount

the magnetic back indicator on the inspection port face with the

indicator probe in contact with the threaded rod (see Figure 3).

NOTE: The threaded rod must not be used to move the weights

while taking backlash readings. Doing so will result in highly

erroneous readings.

Attempt to move the minor balance weight casting and read the

deflection on the dial indicator.

Take a backlash measurement on the upper ring gear by

applying the steps listed above to the major weight (see Figure

2). Move the crankshaft and read the deflection on the dial

indicator.

Once this has been done, rotate both the minor balance casting

and the major balance casting 180 degrees, and then take

another reading.

If the readings on the bottom gear are too high or the top gear

too low, shims must be added under the lower bearing rest to

raise the crankshaft assembly. If the readings on the bottom gear

are too low or the top gear too high, shims must be removed

from under the lower bearing rest. Removal or addition of shims

under the lower bearing rest requires removal of the pinion and

lifting of the crankshaft assembly.

Right or Left Hand Drive - Balance weights must be positioned

one above the other 90° to center line of pinion shaft.

BALANCE WEIGHT POSITIONS FOR

DRIVE HEAD REASSEMBLY

Figure 1

Pinion Shaft

Left-Hand Drive

Pinion Shaft

Front Drive

Pinion Shaft

Rear Drive

Pinion Shaft

Right-Hand Drive

Major Weight

Minor Weight

Major Weight

Minor Weight

Machine

Centerline

Machine

Centerline

FIGURE 2

NOTE: Changing shims under the bearing rest by .003’ will change

backlash on each gear by .0015” to .002”when reading directly

on the gear tooth. When using the ROTEX Backlash Kit, changing

shims by .003 will change backlash readings by .003” to .004”.

If both the upper and lower gear backlash readings must be raised

(or lowered), this can be done by changing the number of shims

on the pinion housing flange.

NOTE: Changing shims by .005 will change the backlash

reading on each gear by .001 when reading directly on the gear

tooth. When using the ROTEX Backlash Kit, changing shims by .005

will change each backlash reading by .002.

Make sure the weights are set, as described in Step 9 of the Drive

Head Final Assembly section, any time the pinion assembly is

removed and installed.

If difficulty is encountered in obtaining suitable clearances, it is

frequently because of the parts on the crankshaft have not been

pulled down tight or the bottom thrust bearing (53) is not seated

properly in the lower bearing rest casting (60). In addition, the

cover for the drive head housing should be down tight, and the

pinion shaft assembly must be all the way in place and the cap

screws down tight when taking measurements.

After the proper clearances have been set, make sure that the

drive head cover is bolted down tight, and that the pinion shaft

assembly is bolted tightly to the housing. Run lock wire through

the drilled heads of the cap screws installed in the pinion

shaft assembly.

DRIVE HEAD FINAL ASSEMBLY (CONTINUED)

1. Run lock wire through the 10 cap screws (79), holding the lower

bearing rest casting to the bottom of the drive head housing.

2. Bolt the oil pump assembly to the oil pump drive flange (56)

with four cap screws (75) and lock washers (74). Run lock wire

(76) through the drilled heads of the cap screws.

3. Apply Permatex Sealant on the threads of the oil drain plug

(87) and insert in the oil pump sump assembly (84). Install drain

plug (82) in housing (77).

4. Apply Permatex Sealant to the top flange of the oil pump sump

assembly (84) and install gasket (83) on the flange.

5. Fasten the oil pump sump (84) to the bottom of the drive head

housing by means of 10 cap screws (86) and lock washers (85).

6. Add four gallons (15.2 liters) of ISO grade 150 hydraulic oil to

the drive head and replace breather vent.

7. With the use of a crank arm, rotate the crankshaft until oil is

forced up by the oil pump through the center of the crankshaft.

Rotate the crankshaft in the opposite direction and again check

for oil flow. If there is no oil flow or oil flowing in only one

direction, check the oil pump for proper assembly.

8. Apply Permatex Sealant to the top flange of the crankshaft (17)

and place the gasket (16) and baffle plate (15A) in place.

9. Lower the crankpin assembly into place on the crankshaft

flange, and bolt into place with 12 cap screws (19) and lock

washers (18). Run lock wire through the drilled heads of the

cap screws.

10. Install the oil seal cap (107) with felt seal (102) and gasket (106)

on the pinion shaft and bolt in place with 10 cap screws (109)

and lock washers (108).

11. Install oil sight tube (93) and gaskets (92 and 94) and oil sight

tube cap (91) on inspection plate weldment (95) by means of

cap screw (88), flat washer (89) and clamp bolt gasket (90).

12. Place gasket (96) on the inspection plate weldment (95) and

install the inspection plate on the drive head housing with ten

cap screws (97) and conical lock washers (98).

INSTALLATION OF DRIVE HEAD ON MACHINE

1. Bolt the drive head assembly down tightly to the machine base.

2. Lower the box frame onto the crankpin (7).

3. Bolt the clamping sleeve (5) to the crankpin with eight cap

screws (4) and new 5/8” internal tooth lock washers. Make

sure that the mating surfaces of the clamping sleeve and the

crankpin bearing are in good condition to ensure a tight fit.

Run lock wire (3) through the drilled heads of the cap screws.

4. Install crankpin cover (2), crankpin cover bolt (1B) and grease

fitting (1A).

5. Reconnect the discharge end drag link assembly to the

box frame.

6. Install the ROTEX sheave (111), bushing (110) and key (120)

on the pinion shaft.

START UP OF MACHINE

Start the machine slowly, and check for excessive vibration.

If there is excessive vibration, recheck the balance weights to

make sure they are properly set. If there is no excessive vibration,

allow it to run for two to three minutes and check to observe a

continuous oil flow in the sight glass in the inspection port cover.

Assembly No. 25200, Rev. 6H

Effective S.O. 75148

70 SERIES DRIVE HEAD ASSEMBLY

NOTE #1: 70 Series Drive Heads shipped prior to December 1983 have oil lubricated crankpin assemblies. Field conversion kits are available

from ROTEX INC. to convert 70 Series Drive Heads from oil lubricated crankpins to the current grease lubricated design.

Conversion kit no. 93525 consists of item nos. 1A, 1B and 15A. Drawing nos. 92935 and 92936 are included for installation instructions.

NOTE #2: Hardware needed to mount drive head to base: 11716-2-Expansion Bolt Assembly

16404-8-1" NC Nut

91508-4-1 x 4-1/2 NC Cap Screw

91511-4-1 x 3-1/2 NC Cap Screw

70 SERIES DRIVE HEAD ASSEMBLY PARTS LIST

Item Part No. Qty Description

1A* 8784 1 Grease Fitting

1B* 130320 1 Crankpin Cover Bolt

2* 25238 1 Crankpin Cover

3* 6408 1 Lock Wire - 36” (91 cm)

4* 7554 8 5/8” x 2-1/2” NF Cap Screw DH

5* 25237 1 Clamping Sleeve

6* – – Head End Plate (part of box frame)

7* 157790 1 Crankpin

8* 22845 1 Felt Seal – 5/16” sq. x 32-13/16”

9* 317100 1 70 Gear / DA / S Crankpin Bearing Housing

10* 10934 1 Crankpin Bearing

11* 157786 1 Snap Ring

— — — —

13* 11628 1 Crankpin Bearing Spacer

14* 11629 1 Crankpin Bearing Spacer Lock

15* 2362 1 Screw, FH – 5/16” NF x 3/4” Lg.

15A* 92788 1 Baffle Plate

16* 11521 1 Crankpin Bearing Gasket

17 11490 1 Crankshaft Assembly

18* 120630 12 5/8” conical lock washer

19* 6437 12 5/8” x 1-1/2” NF HH Cap Screw DH

20* 6408 1 Lock Wire – 72”

21 11687 1 Crankshaft Key

22* 98838 1 3/8” x 7/8” NC Socket Head Screw

23 11649 1 Bearing

25 25225 1 Major Balance Weight Sleeve

26 11627 1 Oil Baffle

27 3600 8 3/8” Internal Tooth Lock Washer

28 6408 1 Lock Wire – 48”

29 9008 8 3/8”x 1” NF HH Cap Screw DH

— — — —

31 2637 8 5/8”x 2-1/2” NF HH Cap Screw

32 120630 8 5/8” Conical Washer

33 120194 1 Drive Head Cover Assembly

34 2637 4 5/8”x 2-1/2” NF HH Cap Screw

35 27346 2 Machined Lift Yoke

37 75758 1 Gasket

38 25226 1 Major Balance Weight

39 25227 1 Major Balance Weight Flange

40 5941 6 3/4” Internal Tooth Lock Washer

41 12249 6 3/4”x 2-1/4” NF HH Cap Screw DH

42 6408 1 Lock Wire – 36”

43** 11441 1 Spiral Bevel Ring Gear

44 4038 24 1/2” Internal Tooth Lock Washer

45 7694 24 1/ 2”x 1-1/4” NF HH Cap Screw DH

46 6408 1 Lock Wire - 36"

47 11405 1 Bearing

48** 11441 1 Spiral Bevel Ring Gear

49 25228 1 Minor Balance Weight

50 11546 1 Minor Balance Weight Spacer

51 11648 1 Bearing

52 11544 1 Lower Bearing Spacer

53 10934 1 Bearing

54 11618 1 Lower Bearing Support Collar

55 79080 1 Shim Set (Shims as Required)

56 11556 1 Drive Flange – Oil Pump

57 161873 3 7/8” Conical Washer

58 12247 3 7/8”x 2-1/2” NF HH Cap Screw DH

59 6408 1 Lock Wire – 12”

60 25230 1 Lower Bearing Rest

61 32684 1 Spring Pin (Roll Pin)

Item Part No. Qty Description

62 27520 1 Pump Housing Cover

63 24015 2 Truarc Snap Ring #5108-62

64 34159 1 Inner Gerotor

65 34160 1 Outer Gerotor

66 34161 1 Eccentric Ring 24014 Assembly

67 34162 1 Spring

68 34163 1 Friction Plug

69 24017 1 5/32”dia. x 9/16” long Drill Rod

70 24011 1 Pump Shaft Assembly

71 24016 1 Woodruff Key #405

72 2911 3 3/8”x 1-1/4” NF HH Cap Screw

73 27519 1 Pump Housing Body

74 4038 4 1/2” Internal Tooth Lock Washer

75 6426 4 1/2”x 1-1/2” NF HH Cap Screw

76 6408 1 Lock Wire – 12”

77 11766 1 Drive Housing Assembly

78 120630 10 5/8” Conical Lock Washer

79 6437 10 5/8”x 1-1/2” NF HH Cap Screw DH

80 8990 1 1-1/4”NPT Pipe Plug

81 6408 2 Lock Wire – 36”

82 2471 1 1/2” Pipe Plug

83 11620 1 Gasket

84 11539 1 Pump Sump Assembly

85 15233 10 1/2” Conical Lock Washer

86 2915 10 1/2”x 1-1 /4” NF HH Cap Screw

87 2471 2 1/2” Pipe Plug

88 10321 1 3/8” x 2-1/2” NF HH Cap Screw

89 26858 1 3/8” Flat Washer - SS

90 12109 1 Gasket for Clamp Bolt

91 12100 1 Oil Sight Tube Cap

92 12108 1 Oil Sight Tube Gasket

93 12110 1 Oil Sight Tube – 1-11/16”long

94 12108 1 Oil Sight Tube Gasket

95 347644 1 Inspection Plate Weldment

96 6090 1 Gasket

97 2915 10 1/2” x 1-1/4” NF HH Cap Screw

98 15233 10 1/2” Conical Lock Washer

99 11647 1 Bearing

100 12147 1 Lock Washer W12

101 12146 1 Lock Nut N12

102 11518 1 Pinion Shaft Housing Cap

103 12246 1 Felt Seal

104 15233 5 1/2” Conical Lock Washer

105 7694 5 1/2” x 1-1/4” NF HH Cap Screw DH

106 6408 1 Lock Wire – 12”

107 6090 1 Gasket

108 25231 1 Oil Seal Cap Casting

109 159233 10 1/2” Conical Washer

110 2915 10 1/2” x 1-1/4” NF HH Cap Screw

111* 50600 1 Bushing SF 2-1/4” Dia.

112* 52672 1 Rotex Sheave 2CQ160

113 6408 1 Lock Wire – 12”

114 6437 3 5/8” x 1-1/2” NF HH Cap Screw DH

115 170286 3 5/8” Conical Serrated Lock Washer

116 8625 1 Clamp Plate

117** 11440 1 Pinion Gear

118 11647 1 Bearing

119 12145 1 Pinion Shaft Key

120 11519 1 Pinion Shaft

121 12148 1 Pinion Shaft Key

122 79081 1 Shim Set (Shims as Req'd)

123 25229 1 Pinion Shaft Housing

124 120630 7 5/8” Conical Lock Washer

125 6429 7 5/8” x 1-3/4” NF Cap Screw DH

126 6408 1 Lock Wire – 36”

127 347640 1 1” NPT Street Elbow

128 347641 1 1” NPT Breather Vent

The following items may

be ordered separately or

as a complete Crankpin

Bearing Assembly 317101

Oil Pump Assembly 24008

*These items are not part of the drive head assembly and must be ordered separately.

**Gears are supplied only in matched sets.

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