Instructions for Installing New Fuel Pump on Certain Compact Track Loaders and Skid Steer Loaders {1256, 1263, 1274} Caterpillar

Compact Track Loader

239D (S/N: BL91-UP)

249D (S/N: GWR1-UP)

Skid Steer Loader

226D (S/N: HRD1-UP)

232D (S/N: DPR1-UP)

Introduction

This Special Instruction contains the procedure and list of required parts to install the new fuel pump on the machines listed above.

Do not perform any procedure in this Special Instruction until you have read the information and you understand the information.

Reference Section

Reference: Disassembly and Assembly , UENR3728 , "Fuel Priming Pump - Remove and Install"

Reference: Disassembly and Assembly , UENR3728 , "Fuel Filter and Water Separator - Remove and Install"

Safety Section

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Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility.

Required Parts

Installation Procedure

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Illustration 1	g06405639
(A) Fuel priming pump (B) Fuel filter assembly (C) Filter mounting bracket (D) Fuel supply lines

1. Remove existing fuel priming pump (A), fuel filter assembly (B), filter mounting bracket (C), and fuel supply lines (). Cap port on T-fitting on fuel tank to prevent contamination. Mark harness leads for fuel pump and WIF sensor as both will be used for the new pump and WIF sensor. Refer to Illustration 1.
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   Illustration 2	g06405663
   (2) 567-9034 Bracket As

2. Secure new fuel pump/filter mounting bracket (2) to old fuel filter mounting holes on frame using the existing hardware from old filter bracket. Refer to Illustration 2.
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   Illustration 3	g06405668
   (1) 525-3457 Water Separator and Fuel Filter Gp (4) 8T-4121 Hard Washer (5) 277-1873 Clip (6) 280-8912 Bolt

3. Install pump to mounting bracket using two bolts (6), washers (4), and ladder clip (5). Refer to Illustration 3.
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   Illustration 4	g06405702
   (3) 246-2622 Elbow As

4. Install elbow assembly (3) to air-bleed/overflow fitting on filter. Assembly torque is 10 N·m (7.4 lb ft)Do not over-torque. Refer to Illustration 4.
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   Illustration 5	g06405725
   (8) 3S-2093 Cable Strap

5. Connect fuel pump to existing wire harness and secure to ladder clips using tie strap (3S-2093) (8). Refer to Illustration 5.
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   Illustration 6	g06406051
   (E) 1P-4278 Hose Clamp (7) 5P-1507 Hose (8) 3S-2093 Cable Strap

6. Use bulk hose (7) to make hoses for fuel inlet and air-bleed/overflow as shown in Illustration 6. Secure hoses using hose clamps (E). Use cable straps (8) as needed, to prevent hoses from rubbing other components.
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   Illustration 7	g06406079
   (E) 1P-4278 Hose Clamp (7) 5P-1507 Hose (8) 3S-2093 Cable Strap

7. Make fuel outlet hose from bulk hose (7). Before installing, clean hose as you would a fabricated hydraulic hose. Hose should be free of loose debris. Secure using hose clamps (E). Use tie straps (8) as needed to prevent hoses from rubbing other components. Refer to Illustration 7.
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   Illustration 8	g06406092
   (F) Wire lead for WIF sensor (G) Existing harness connection (8) 3S-2093 Cable Strap

8. Connect wire lead for WIF sensor (F) to existing harness connection (G). Secure this connection to weld link on frame using cable strap (8). Refer to Illustration 8.

9. Key-on machine to allow pump to prime and fill. This action will also purge any debris still in the new fuel lines. Check for any leaks. If there are no leaks, crank machine.