LAMP GP-HEAD & SIGNAL 3020413 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 311-1362 Vacuum Gauge Gp 1
B - Loctite 263 - Start By:
Release the hydraulic system pressure.
Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
Illustration 1 g02138737
Remove the cap from the hydraulic tank. Install Tooling (A) onto the hydraulic tank. Attach an air supply hose to Tooling (A). Apply 276 to 414 kPa (40 to 60 psi) of air. This procedure will pull vacuum on the hydraulic system.
Illustration 2 g02155365
Remove bolts (1) and plate assembly (2).
Illustration 3 g02155773
Disconnect harness assembly (4) and hose assemblies (6). Remove pressure switch (5) and fittings (3).
Illustration 4 g02155774
Remove bolts (8) and pedal (7).
Illustration 5 g02155775
Remove bolts (9) and auxiliary pilot valve (10). Installation Procedure
Install auxiliary pilot valve (10) in the reverse order of removal.
Tighten bolts (8) to a torque of 17 2 N m (150 18 lb in).
Apply Tooling (B) to the threads of bolts (1).