SEAL 1S1115 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
ZZ     9U-7068     Tapered Cap/Plug     16    
9U-7070 Tapered Cap/Plug     4    Note: SERVICE DATA: TOOLING (ZZ) WILL NOT BE IDENTIFIED IN PHOTOGRAPHS IN THE REMOVAL OR THE INSTALLATION. THIS TOOLING IS SHOWN IN ORDER TO ASSIST THE EXPERIENCED SERVICEMAN.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Illustration 1 g01035888
Disconnect fuel injection lines (1) from fuel injection nozzles (2). Plug all openings immediately.
Disconnect fuel injection lines (1) from fuel injection pump (5). Plug all openings immediately.Note: Secure the delivery valves with a wrench when you remove fuel injection lines (1) at fuel injection pump (5) .
Remove fuel injection lines (1) from the engine.Note: Loosen the clamps that tie the fuel injection lines together in order to maneuver the lines off the engine, if necessary.
Disconnect fuel return line (3) from overflow valve (4) on fuel injection pump (5). Remove the sealing washers from overflow valve (4) .
Remove fuel return line (3) from fuel injection nozzles (2) .Note: Loosen the hose clamps and remove the individual fuel hoses between the fuel injection nozzles.Installation Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 2 g01035888
Note: Install the individual fuel hoses between the fuel injection nozzles. Tighten the hose clamps securely.
Install fuel return line (3) on fuel injection nozzles (2) and fuel injection pump (5). Position the sealing washers on overflow valve (4). Tighten overflow valve (4) to a torque of 22 to 31 N m (16 to 23 lb ft).
Position the fuel injection lines on the engine.
Connect fuel injection lines (1) at fuel injection pump (5). Tighten the union nuts to a torque of 27 to 32 N m (20 to 24 lb ft).Note: Secure the delivery valves with a wrench when you install fuel injection lines (1) to fuel injection pump (5) .
Connect fuel injection lines (1) to fuel injection nozzles (2). Tighten the union nuts to a torque of 27 to 32 N m (20 to 24 lb ft).
If the clamps that tie the fuel injection lines together were loosened for removal purposes, tighten the clamps securely.