2003/06/02 Caterpillar

Integrated Toolcarrier:

IT28G (S/N: WAC1-UP; EWF1-UP; DBT1-UP)

Wheel Loader:

924G (S/N: DDA1-UP; RBB1-UP; WMB1-UP)

924GZ (S/N: RTA1-UP; WGX1-UP; DFZ1-UP)

928G (S/N: DJD1-UP; WLG1-UP)

Systems Operation, Testing and Adjusting, RENR6427, "IT28G Integrated Toolcarrier and 924G, 924Gz and 928G Wheel Loaders Steering System", "Piston Pump (Steering and Pilot) Margin Pressure - Test and Adjust". This module is part of Service Manual, RENR6420.

"Table 5" is incorrect. Replace the current "Table 5" with the following "Table 5".

Table 1

Needed Tools
Part Number	Part Description	Qty
6V-2076	Hose Assembly	2
6V-4144	Coupler	2
6V-4142	Unvalved Nipple	2
8T-0859	Pressure Gauge 25000 kPa (3600 psi)	2
3J-7354	O-Ring Seal	1
5P-2937	O-Ring Adapter	1
6V-3966	Fitting As	1

Step (9) is incorrect. Replace the current step (9) with the following step (9) .

9. For the 924G and 924Gz, the pressure reducing valve is behind panel (1). For the 928G and IT28G, the pressure reducing valve is below panel (1). Remove the cap from pressure tap (2) .

Illustration (61) is incorrect. Replace the current illustration (61) with the following Illustration (61).

Illustration 1	g01001269

Step (15) is incorrect. Replace the current step (15) with the following step (15) .

15. The steering piston pump is behind panel (3). The pressure compensator valve (4) is attached to the top of the steering piston pump. On the 924G and 924Gz, remove the cap from pressure tap (5). On the 928G and IT28G, remove plug (6) from the port in the pressure and flow compensator valve. Install one 3J-7354 O-Ring Seal onto a 5P-2937 O-Ring Adapter. Install the 5P-2937 O-Ring Adapter into the port. Install one 6V-3966 Fitting As into the O-ring adapter. The 3J-7354 O-Ring Seal, 5P-2937 O-Ring Adapter, and the 6V-3966 Fitting As are part of the 8T-5320 Hydraulic Test Group .

Step (16) is incorrect. Replace the current step (16) with the following step (16) .

16. Attach the 6V-4144 Coupler on the hose to the test port on the pressure and flow compensator valve.