Curtis New Holland Workmaster 25S Betriebsanleitung

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INSTALLATION & OWNER’S MANUAL

New Holland Workmaster 25S

Cab with Heater (p/n: 1NHWM25SCA)

fits tractor models: Workmaster 25S

(*=Not including accessories)

Available Options:

1. Front LED Work Lights (P/N: 9LEDW4)

2. Rear LED Work Lights (P/N: 9LEDW3)

3. Strobe Light (P/N: 9LEDS2)

4. Dome Light (P/N: 9LEDD14)

5. Side View Mirrors (P/N: 9PM5)

6. Rear View Mirror (P/N: 9PM3)

7. Rear Wiper (P/N: 9PWK8512F9-11A)

8. Seal Kit (P/N: 9SK8)

9. Adaptor Kit to Mount Cab Without Loader (P/N: 1NHWM25SAK)

Approximate Installation Time *

Experienced Dealer Technician – 6 Hours

Average Dealer Technician – 8 Hours

Do-It-Yourself – 10 Hours

Approximate Product Specifications

Floorboard to Roof Height: 61.625 inches

Weight: 329 lbs.

Cab Width: 47.625 inches (w/o side mirrors)

Rev. B, 08/17/2021

P/N: IM-1NHWM25SCA

The contents of this envelope are the property of the owner. Leave with the owner when installation is complete.

While this cab kit was designed to fit on the vehicle(s) listed above, manufacturing tolerances and vehicle

assembly may affect cab fitment. It is the responsibility of the cab installer to check all vehicle pedals and

levers for full functionality and, as required, adjust the cab fitment to prevent any interference of the cab

components with the travel of pedals or levers.

Front windshield wiper and

heater comes standard

with cab. Also shown with

optional front work lights,

and side view mirrors.

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TABLE OF CONTENTS

WARNINGS, TIPS, & REQUIRED TOOLS...................................................... 3

CAB INSTALLATION.................................................................................. 4-18

CAB FEATURES & OPERATION............................................................. 19-20

CARE AND MAINTENANCE......................................................................... 21

SERVICE PARTS .................................................................................... 22-25

OPTIONAL ACCESSORIES ......................................................................... 26

TORQUE SPECIFICATIONS ................................................................... 27-28

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Curtis cabs feature an assembly of parts designed for your vehicle which require adjustment

and alignment of components to accommodate vehicle variations and provide proper weather

protection. For accurate installation, proper operation, and years of satisfaction, please read

and understand the installation and owner’s manual fully prior to installing the cab.

From all of us at Curtis, we thank you for choosing our product.

HELPFUL HINTS:

•Refer to parts diagram found in the service parts section of this manual to help identify parts during the assembly process.

•To assist with the cab installation, leave all fasteners loose for later adjustment unless otherwise specified.

•Read and understand all instructions before beginning.

•Apply a silicone sealant to seal any minor gaps that may occur due to vehicle variations.

•Use caution to avoid damaging the factory installed threaded inserts or weld nuts. Begin the thread engagement by hand to

avoid or correct potential cross threading.

•Make sure the areas where the supplied self-adhesive hook Velcro and seals will be applied are clean, dry, and at room

temperature for best adhesion.

•Before installing parts with factory installed rubber, make sure the rubber is fully installed onto the parts for proper fit and

sealing.

driver and passenger.

Curtis accessory weights are listed in product

add additional weight to the base vehicle. All

Curtis Cabs, blades and general accessories

ADDED

WEIGHT

brochures. Deduct the accessory's total weight

from the vehicle's rated capacity and never

exceed the vehicle's rated capacity including

Exposure to Carbon Monoxide

can Cause illness, serious injury or

death. Never operate vehicle if suspicious of Carbon Monox-

ide. Inspect exhaust system for leaks monthly. Leaks can

result from loose connections, corrosion, cracks or other

damage to the exhaust manifold. If leaks are found, repair or

replace exhaust system. Do not use vehicle until repair or

replacement is complete.

•Set of Standard and Metric Sockets (3/8” Drive)

•3/8” Drive Ratchet with Extension

•Torque Wrench

•Set of Standard and Metric Open-End Wrenches

•Set of Standard and Metric Allen Wrenches

•#2 and #3 Phillips Head Screwdrivers

•Flat Head Screw Driver

•Body Clip Removal Tool

•Pliers

•Non-Marring Pick

•(2) Quick Grip Clamps

• Bar clamp (optional)

•5/16” Nut Driver

•Coolant Drain Pan

•Drill/Driver

•#2 and #3 Phillips Head Bit

•Utility Knife

•Pair of Scissors

•Shears

•Grease

•Silicone Sealant

•Teflon Tape

•Tape Measure

•China Marker or other Non-Permanent Marker

•Snips

WARNINGS, TIPS, & REQUIRED TOOLS

TOOLS REQUIRED:

GENERAL INFORMATION BEFORE YOU START

California Health and Safety Proposition 65 Warning: This product may contain chemi-

cals known to the state of California to cause cancer and birth defects or other reproductive harm.

CAB INSTALLATION

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STEP 1: (VEHICLE PREP)

1.1 If tractor is equipped with a 100LC Loader, rotate loader

valve hose loop up per figures 1.1a and 1.1b.

Tools required

22mm Wrench or Socket

1.2 Remove and position the loader (if installed) away from

the vehicle.

1.3 Remove and set aside the ROPS mounted tool box and

bracket along with its fasteners, if equipped. See fig. 1.3

Tools required

12mm Wrench or Socket

1.4 Remove and set aside the SMV sign and its bracket.

See Figures 1.4.

Tools required

13mm Wrench and Socket

1.5 Remove outside ROPS hardware found on both sides of

the tractor and set aside. See figure 1.5.

Tools required

19mm Wrench or Socket

1.6 Remove tail lights from factory mounts per figure 1.6.

Note: you do not need to disconnect the lights.

Tools required

17mm Wrench or Socket

Fig. 1.3 (Remove ROPS mounted Tool Box)

Fig. 1.1a & 1.1b (Rotate Hose Loop)

Rotate Loop

To Here

Fig. 1.5 (Outboard ROPS Fasteners)

Remove outside

ROPS Hardware

Fig. 1.6 (Tail Lights)

Slide light backwards

from mounts

Fig. 1.4 (Remove SMV Sign Bracket)

Remove + Set Aside

CAB INSTALLATION

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STEP 1: (VEHICLE PREP

CONTINUED)

1.7 Pop the hood, disconnect the headlights per figure 1.7.

1.8 If Grill Guard is installed, remove and set aside with

mounting hardware per figure 1.8.

Tools required

19mm Wrench or Socket

1.9 Remove grill and side panels (all one piece) from

tractor.

Tools required

12mm Wrench or Socket

1.10 Following the manufacturer’s instructions, remove the

access panel under the dash and disconnect the

battery.

1.11 Locate the fuse harness (WH-GF) in the hardware box.

Make certain the fuse is installed in the fuse holder.

Install the ring terminal of the fuse harness to the

alternator. See Figure 1.11.

1.12 Reconnect battery and reinstall the access panel.

1.13 Install loader lock lever extension bracket onto factory

lever. See Figure 1.13.

Hardware Used Qty

#10-32 X 1/2” Flange Hex Head Screw 1

Tools required

5/16” Wrenches

Note: If installing optional seal kit (9SK8), or Adaptor Kit to

Mount Cab without Loader (1NHWM25SAK), install

now.

Fig. 1.13 (Install Lock Lever Ext Bracket)

Factory Lever

Fig. 1.7 (Disconnect Head Light, Left Side Shown)

Disconnect

Light Here

Fig. 1.8 (Remove Grill Guard)

Fig. 1.11 (Fuse Harness Instalation)

Fuse Holder

Alt Power

CAB INSTALLATION

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STEP 2: (REAR MOUNT BRACKETS)

2.1 Using the fasteners listed below and those that were

removed during step 1.4, first install the spacers and

then the rear mount bracket on the left side of vehicle

with the small flange facing up. See Figure 2.1.

Hardware Used Qty

1/2” ID X 3/4” OD X 5/32” THK Spacer 2

Tools required

17mm Wrench or Socket

2.2 Install lower left mount per Figure 2.2.

Hardware Used Qty

5/16-18 X 3/4 Hex Head Screw 2

5/16-18 Hex Nut 2

Tools required

1/2” Wrench and Socket

2.3 Install left tail light on rear mount bracket, removed

during step 1.5. See Figure 2.3.

Tools required

17mm Wrench

2.4 Repeat steps 2.1 thru 2.3 on the right side of the

vehicle.

Fig. 2.1 (Rear Mount Bracket Orientation)

Fig. 2.2 (Lower Rear Mount Orientation)

Fig. 2.3 (Re-Install Tail Light)

Note: Red on back

lower half of tail light.

STEP 3: (ROPS BRACKETS AND

CLAMPS)

3.1 Measure down from the tab found on the ROPS

Structure approximately 7/8”. Make a mark using a

china marker or other non-permanent marker. Install the

left ROPS bracket and clamp. See Figure 3.1.

Hardware Used Qty

5/16-18 X 3/4 Hex Head Screw 4

5/16-18 Hex Nut 4

Tools required

1/2” Wrench and Socket

3.2 Repeat step 3.1 on the right side of the vehicle. Fig. 3.1 (ROPS Bracket and clamp, left)

ROPS Tab

7/8”

CAB INSTALLATION

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Fig. 4.3a (Cowl)

STEP 4: (RADIATOR SHROUD, LOAD

LOCK LEVER & COWL)

4.1 Position the radiator shroud on the vehicle just in front

of the front lip of the floorboard per figure 4.1. Install Tip:

If needed, move the rubber boot of the jockstick out of

the way when placing the shroud in place. Place the

boot back in place once shroud is placed.

4.2 Install Thumb Screw into previously installed Load Lock

Lever Extension bracket (Step 1.10). Make sure there

is enough thread on the inside for a hex nut to fit. Then

thread and tighten on the hex nut on the inside. See

Figures 4.2a and 4.2b.

Hardware Used Qty

Thumb Screw, 3 inches long 1

#10-32 Hex Nut 1

Tools required

3/8” Wrench or Socket

4.3 Install steel cowl in front of radiator shroud per figure

4.3a. For best seal, make sure that rubber running

across the top of the dashboard (between the white

arrows) is pushed back and pushed forward as it runs

down the side of the dash (outside the white arrows) as

shown in figure 4.3b.

Hardware Used Qty

1/4-20 Thumb Nut 5

Fig. 4.1 (Radiator Shroud, Right)

Lip of floorboard

Boot

Fig. 4.3b (Cowl Rubber)

Push rubber back towards

steering wheel between

the white arrows.

Figure 4.2a (Load Lock Lever, Cab inside)

Figure 4.2b (Load Lock Lever, Cab outside)

#10-32 Hex Nut

CAB INSTALLATION

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STEP 5: (REAR LEGS)

5.1 Fasten the rear leg to the previously installed ROPS

brackets. See Figure 5.1.

Hardware Used Qty

5/16-18 X 3/4 Hex Head Screw 2

5/16-18 Hex Lock Nut 2

Tools required

1/2” Wrench and Socket

5.2 Repeat step 5.1 on the right side of vehicle.

Fig. 7.2a (Side Frame)

5/16-18 x

3/4 Screws

5/16-18

Nuts

1/4-20

Thumb

Nuts

Fig. 5.1 (Rear Leg to Side Frame Fasteners)

5/16-18 x 3/4 Screws

5/16-18 Nuts

STEP 6: (LOWER FRONT MOUNTS)

6.1 Install left side lower front mount using supplied

hardware listed below. See Figure 6.1. Note: If

backhoe or No-Loader Adapter Kit is installed, 1/2”

spacers are not required.

Hardware Used Qty

M12x1.75 X 55 Hex Head Screw 2

M12 Washer 2

M12x1.75 Flange Hex Nut 2

1/2” ID X 3/4” OD X 1/2” THK Spacer 2

Tools required

19mm Wrench and Socket

6.2 Repeat step 6.1 on the right side of vehicle.

Fig. 6.1 (Lower Front Mount, Left)

M12 Washer

STEP 7: (SIDE FRAMES)

7.1 With assistance, remove the pre-assembled left door

from the left side frame and set aside. Do not lose the

brass washers on the hinge pins.

7.2 Fasten the left side frame to the left Front Mount,

Radiator Shroud, and Rear Leg. See Figures 7.2a and

7.2b.

Hardware Used Qty

5/16-18 X 3/4 Hex Head Screw 5

5/16-18 X 1 Button Head Screw 2

5/16-18 Flat Washer 2

5/16-18 Hex Nut 2

1/4-20 Thumb Nut 1

Tools Required

1/2” Wrench or Socket

3/16” Allen Wrench

Fig. 7.2b (Side Frame, Detail View)

5/16-18 Button

Head Screws

5/16 Washers

Lower Front Mount

Spacer Behind Lower

Front Mount

CAB INSTALLATION

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STEP 7: (SIDE FRAMES CONT’D)

7.3 Fasten the side frame to the cowl as shown in Fig-

ure 7.3.

Hardware Used Qty

5/16-18 X 3/4 Hex Head Screw 2

5/16-18 Hex Nut 2

Tools required

1/2” Wrench and Socket

7.4 Repeat steps 7.1 thru 7.3 on the right side of the

vehicle.

STEP 8: (WINDSHIELD SUPPORT)

8.1 With assistance, align sides and top of the windshield

support with the side frames. Fasten the windshield

support in place with a screw through the front of each

side frame. See Figure 8.1. Confirm bolt holes in the top

of the windshield support align with the inserts in the

side frames and tighten hardware.

Hardware Used Qty

5/16-18 X 3/4 Hex Head Screw 2

Tools required

1/2” Wrench or Socket

Fig. 8.1 (Windshield Support to Side Frame Fasteners)

5/16-18 x 3/4 Screws

Fig. 9.1 (Lower Rear Panel)

1/4-20 Nut

STEP 9: (LOWER REAR PANEL)

9.1 Fasten the lower rear panel to the rear legs as shown in

Figure 9.1.

Hardware Used Qty

1/4-20 X 5/8 Hex Head Screw 4

1/4-20 Flange Hex Nut 4

Tools required

3/8” Wrench and Socket

7/16” Wrench and Socket

Note: On backhoe equipped vehicles, the lower rear panel

will need to be removed to operate the backhoe. It is up

to the discretion of the operator whether or not to

reinstall.

5/16-18 x 3/4 Screws

5/16-18 Nuts

Fig. 7.3 (Side Frame to Cowl Fasteners)

1/4-20 x 5/8 Screws

CAB INSTALLATION

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Fig. 10.1 (Attach Main Harness To Cowl)

Fig. 10.3 (Secure Harness to Side Frame)

STEP 10: (CAB WIRING)

10.1 Attach the main power wire harness to the top of the

cowl, about 6” from the end of the windshield wiper

motor connector, using supplied zip-ties. The connector

end should be outside the cab with the rest of the

harness on the inside. See Figure 10.1.

Hardware Used Qty

11” Long Zip-Tie 3

10.2 Snap the heater switch into the rectangular cutout in the

top of the cowl and connect the wire harness.

10.3 Run the wire harness over to and down the left side

frame through the gap between the floorboard and

intake shroud. Secure it in (2) places along the side

frame using P-clamps and self-drilling screws. See

Figure 10.3.

Hardware Used Qty

#10 x 3/4” Pan Head Self-Drill Screw 2

P-Clamps 2

Tools required

#2 Phillips Bit

Drill/driver

10.4 Run the harness to the alternator as shown in Figures

10.4 and 10.5 making sure that wires will not be cut or

pinched passing by the radiator or moving parts.

10.5 Locate the fuse harness (WH-GF) and connect the fuse

harness to the main power harness via the bullet

connectors. See Figure 10.5.

10.6 Install the ring terminal of the main power wire harness

to the vehicle’s engine. Coil the slack in the power

harness and secure with a wire tie. See Figure 10.5.

Double check that the wires are not pinched or near

sharp or hot surfaces.

NOTE: At the installer’s discretion, wiring for

accessories may also be installed into the engine

compartment at this time.

10.7 Secure wires (with wire ties provided) away from any

hot or moving engine components where it could melt or

be pinched.

Fig. 10.5 (Power Harness Connections)

Fuse Holder

Power

Harness

Ground

Wire Ties

P-Clamps

Fig. 10.4 (Power Harness to Hood)

Alt Power

Heater Switch Wiper Connector

End

FB & SHROUD GAP HERE

FB & SHROUD

GAP HERE

Towards

Alternator

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