Panasonic EY6931 - 15.6V HAMMER DRILL Bedienungsanleitung
1 SCHEMATIC DIAGRAM 2
2 WIRING CONNECTION DIAGRAM 2
3 DISASSEMBLY INSTRUCTIONS 3
4 ASSEMBLY INSTRUCTIONS 5
©2000 Matsushita Electric Works Ltd. All rights
reserved. Unauthorized copying and distribution is a
violation of law.
EY6931
5 TROUBLESHOOTING GUIDE 8
6 TRIAL OPERATION 10
7 EXPLODED VIEW 11
8 REPLACEMENT PARTS LIST 12
Cordless Hammer Drill & Driver
SPECIFICATIONS
Capability Screw driving Machine screw M3.5 - M6
Wood screw Ø2.1 - Ø5.8mm (5/64"~ 15/64")
Drilling Mortal Brick Ø3 - Ø13mm (1/8" - 1/2")
Wood Ø3 - Ø36mm (1/8" - 1-27/64")
Metal Ø1.5 - Ø13mm (1/16" - 1/2")
Motor DC Motor 15.6V
No load speed LOW 80 - 550/min (rpm)
HIGH 300 - 2,000/min (rpm)
Blows rate per minute LOW 1,200 - 8,250/min (bpm)
HIGH 4,500 - 30,000/min (bpm)
Chuck capacity Ø1.5 - Ø13mm (1/16" - 1/2")
Maximum torque LOW 25.5Nm (260kgf-cm, 255in-lbs.)
HIGH 5.9Nm (60kgf-cm, 52in-lbs.)
Blow strength 1.7kN (170kgf, 370lbs.f)
Overall length 236mm (10-23/32")
Weight (with battery pack) 2.3kg (5.1lbs.)
CONTENTS
Page Page
ORDER NO. PTD0009U37C1
1 SCHEMATIC DIAGRAM
2 WIRING CONNECTION DIAGRAM
2
EY6931
3 DISASSEMBLY INSTRUCTIONS
3.1. HOW TO REMOVE KEYLESS DRILL CHUCK.
Ref. No. 1A Procedure 1A Removal of keyless drill chuck.
1. Set clutch handle to position .
2. Turn lock handle counterclockwise direction to open chuck jaws.
3. Use a screwdriver to turn chuck fastening screw inside chuck
clockwise direction of arrow, and remove the screw.
NOTE :
If chuck fastening screw will not come loose, insert an allen wrench
into chuck and lightly tap in clockwise direction with a hammer to
tighten chuck, and then loosen chuck fastening screw.
4. Insert an allen wrench into chuck, and turn counterclockwise direction in
arrow with holding main unit by vise to remove chuck.
3.2. HOW TO DISASSEMBLE MAIN UNIT.
(Housing AB set can be opened without disassembling chuck.)
Ref. No. 2A Procedure 2A Removal of housings.
1. Remove 9 housing screws.
3
EY6931
Ref. No. 2B Procedure 2A →
→→
→2B Removal or attachment of motor.
(Removal of motor.)
1. Remove motor with gear block from housing.
2. Separate motor from gear box block by twisting
motor to unlock tabs.
(Attachment for motor.)
3. Motor mounting base and positioning rib of gear
case should be set.
Ref. No. 2C Procedure 2A →
→→
→2B →
→→
→2C Removal of gear box block.
1. Set clutch handle B to position 1 before replacing
driving block from housing.
2. Loosen 3 screws of clutch handle A and remove
clutch handle from driving block.
3. Pull out 2 pins (Ø2×31.8) by pressing down on clutch
handle B and driving shaft.
4. After removing clutch handle B, internal parts of
driving block can be removed one after another.
driving shaft →spring →change plate (2pcs) →cam A
→vibration spring →click plate →adjust ring →clutch
spring →clutch plate →steel ball (12pcs) →roller pin
(6pcs)
4
EY6931
4 ASSEMBLY INSTRUCTIONS
5
EY6931
4.1. HOW TO ASSEMBLE DRIVING BLOCK AND GEAR CASE.
Ref. No. 3A Procedure 3A Assembly of driving block.
1. Assemble clutch plate, clutch spring and adjust ring to outside of clutch case. 2. The click plate has its own correct direction for proper
assembly.
Adjust (A) groove of clutch case to protrusion part of click
plate.
3. Assemble vibration spring and cam A into clutch case. 5. Insert spring to driving shaft and assemble them to clutch
case.
4. When assembling change plates, make sure that protrusion side of change
plates face inside of clutch case.
Ref. No. 3B Procedure 3A →
→→
→3B Assembly of clutch handle.
1. Set clutch handle B to position 1 toward dent part of clutch
case.
2. Insert 2 pins (Ø2×31.8) by pressing down clutch handle B
and driving shaft.
3. The change ring has its own correct direction. Confirm the
direction when change ring is inserted into clutch handle.
4. Select clutch handle B to position before assembling
clutch handle A to gear block.
5. Adjust protrusion parts of change plate with groove parts of
change ring inside of clutch handle A.
6. Tighten 3 screws of clutch handle A.
6
EY6931
Ref. No. 3C Procedure 3A →
→→
→3B →
→→
→3C Assembly of gear case
1. Reinstalling place 2pcs of steel balls into each of 6 holes.
2. Insert 6 pins into clutch case.
3. Assemble carrier, ring gear, 3 pieces of planet gear and
thrust plate.
4. Align the dent part of clutch case with positioning rib of gear
case. And tighten them with 4 screws.
5. Assemble ring gear B, carrier A, planet gear A, carrier B,
ring gear A, planet gear B and thrust plate.
NOTE :
Ring gear B has its own correct direction for proper
assembly.
6. Confirm proper position of High/Low change gear handle
when it is assembled. Both ends of spring must be put into
grooves of ring gear B.
7
EY6931
(Refer to WIRING CONNECTION DIAGRAM.)
5 TROUBLESHOOTING GUIDE
5.1. CHECK POINTS FOR ELECTRICAL PARTS.
< TROUBLE > < CHECK > NO < REMEDY >
Does not operate. — <CHECK BATTERY PACK.> →Replace battery pack.
If no less than 15.6 V DC is available across the (+) and (-) terminals,
the battery pack is OK.
NOTE :
The battery pack is sold separately as an optional accessory.
See the nearest sales dealer for details. The battery pack has a
limited life. The pack should be replaced if
- after being charged for the rated charging time the battery
voltage is less than 15.6V DC or the usable time is extremely
short.
- the battery leaks. Check battery for leaks and terminals for
corrosion.
↓OK NO
<CHECK TERMINAL CONNECTIONS BETWEEN →Repair contacts.
MAIN UNIT AND BATTERY PACK.>
Check for proper terminal contacts.
↓OK NO
<CHECK SWITCH BLOCK.> →Contacts in switch
(See WIRING CONNECTION DIAGRAM.) block are defective.
Replace switch & FET
Check continuity between following terminals. block.
* Inspection of the forward / reverse selection switch. When switch
handle is depressed all the way :
- There should be 0Ωbetween (A) - (D) , and between (B) - (C) ;
when switch lever is set to forward side.
- There should be 0Ωbetween (A) - (C) , and between (B) - (D) ;
when switch lever is set to reverse side.
↓OK NO
<CHECK MOTOR.> →Replace motor.
The motor normally operates with its white (+) and black (-) lead wires
connected to 15.6V DC.
Ref.: motor rotating speed 17,700 ±1,500.
NO
Does not speed —<CHECK SWITCH BLOCK.> →Replace switch & FET
control. block.
Though FET block may be defective, FET block can not be replaced
without replacing switch block.
8
EY6931
5.2. CHECK POINTS FOR DRIVING BLOCK.
< TROUBLE > < CHECK > NO < REMEDY >
Does not vibrate — <CHECK DRIVING SHAFT (CAM B) AND CAM A.> →Replace driving
or weakness of shaft or cam A.
vibration. Check wear condition of driving shaft (cam B) and cam A
(When setting inside of clutch case.
clutch handle
to .)
↓OK NO
<CHECK CHANGE PLATES.> →Replace change
plates.
Check wear condition of protrusion parts for both side of change plates.
NO
Weakness of —<CHECK CLUTCH HADNEL A.> →Replace clutch
clutch operation. handle A.
Check wear condition of torque changing cam inside of clutch handle A.
↓OK NO
<CHECK RING GEAR.> →Replace ring
gear.
Check wear condition of protrusion parts of ring gear.
↓OK NO
<CHECK ADJUST RING.> →Replace adjust
ring.
Check wear condition of tip parts of adjust ring.
NO
The bit-locking —<CHECK ROLLER AND CARRIER.> →Replace roller
function does not set or carrier.
work. Check wear condition of roller set and carrier.
9
EY6931
6 TRIAL OPERATION
(after checking TROUBLESHOOTING GUIDE.)
1.Check vibrating operation by setting clutch handle to , then touching bit on a board.
Impact rate per minutes : (HIGH) 4,500 - 30,000 b.p.m. (LOW) 1,200 - 8,250 b.p.m.
Impact strength : 1.7kN (170kgf)
2.Check clutch operation by setting clutch handle between 1-5.
Clutch torque : 5 steps (approx. 1.0 - 1.5 - 2.5 - 3.4 - 4.4 Nm)
(approx. 10 - 15 - 25 - 34 - 45 kg-cm)
3.Check rotation of clutch (without clutch operation) by setting to .
4.Check spped control in proportion to depression amount of switch handle.
Low : approx. 300 - 2,000 r.p.m.
High : approx. 80 - 550 r.p.m.
5.Check operation by selecting forward or reverse switch.
6.Check if 3 chuck claws open or close smoothly by turning lock handle.
Chuck : Ø1.5 - 13 mm
7.Screwdriver bit locks in place, check if it is locked and can be used as a manual screwdriver.
Torque : max. 25.5Nm (260kgf-cm)
10
EY6931
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