GUARD AS 1198640 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description QTY
A 5P-0332 Crowfoot Wrench 1
B 129-1966 Multipurpose Grease 1 Start By:
Remove the exhaust sensor lines.
Contact with high pressure fuel may cause personal injury or death. Wait 60 seconds after the engine has stopped to allow fuel pressure to purge before any service or repair is performed on the engine fuel lines.
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.Dispose of all fluids according to local regulations and mandates.
Contact with high pressure fuel may cause fluid penetration and burn hazards. High pressure fuel spray may cause a fire hazard. Failure to follow these inspection, maintenance and service instructions may cause personal injury or death.
Turn the fuel supply to the OFF position.
Disconnect the battery. Refer to Operation and Maintenance Manual, "Battery or Battery Cable - Disconnect".
Remove all components in order to access to the harness assembly.
Illustration 1 g02796524
Loosen clamp assemblies (1) and remove hose (2).
Illustration 2 g02140852
Disconnect fittings (3) and (7).
Remove bolts (5), (6), and (8) and remove tube assembly (4).
Remove bolt (9).
Illustration 3 g02796529
Remove nuts (10) and remove bracket (11).
Disconnect harness assemblies (12).
Illustration 4 g02141940
Typical Example
Illustration 5 g02141948
Illustration 6 g02156903
Position harness assembly (13) out of the way with cable straps.
Disconnect tube assembly (16) and remove fitting (15). Note: Relief valve (14) is a two-piece valve which should not be disassembled.Note: Do not use Tooling (A) at Location (X).
Use Tooling (A) to remove relief valve (14) and remove the O-ring seal. Installation Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Install relief valve (14) in the reverse order of removal.
Apply Tooling (B) to the threads of relief valve (14). Use Tooling (A) to tighten relief valve (14) to a torque of 60 5 N m (44 4 lb ft).
Loosen relief valve (14) to a torque of 5 3 N m (44 27 lb in).
Again, tighten relief valve (14) to a torque of 20 2 N m (177 18 lb in).
Tighten relief valve (14) an additional 18° turn. Again, Tighten relief valve (14) to a torque of 90 20 N m (66 15 lb ft).