GEAR-RING 1709060 - Caterpillar

Assemble new bracket (19) and the counterbalance valve with the hardware indicated in Illustration 9.Note: Use the 8T-4121 Hard Washer and bracket (G) that was saved from Step 3. Use new hose clip (6) as illustrated.
Illustration 10 g06254026
(15) 536-3745 Hose As
(16) 536-3746 Hose As
Remove the two hoses from the rear counterweight cylinder and assemble new hoses (15) and (16) using the same clipping points and hardware.Note: The top hose is assembled to the rod end of the cylinder.
Illustration 11 g06254027
(17) 536-3747 Hose As
(18) 536-3748 Hose As
Remove the two hoses from the front counterweight cylinder and assemble new hoses (17) and (18) using the same clipping points and hardware.Note: The top hose is assembled to the rod end of the cylinder.
Illustration 12 g06254030
(12) 535-8917 Hose As
(13) 535-8918 Hose As
(14) 535-8919 Hose As
Remove the two hoses from the counterweight control valve and assemble new hoses (12) and (13) using the same clipping points and hardware.Note: The top hose is assembled to the rear port of the counterweight control valve.Remove the hose for the flushing manifold and assemble new hose (14) using the same clipping points and hardware.
Illustration 13 g06254031
(12) 535-8917 Hose As
(13) 535-8918 Hose As
The top hose from the new counterbalance valve (12) is assembled to the rear port of the counterweight control valve.
Illustration 14 g06254853
(7) 421-6158 Adapter As
(8) 511-4730 Elbow As
(11) 535-8916 Hose As
(14) 535-8919 Hose As
Assemble adapter (7) onto the top of the case flushing manifold as indicated in Illustration 14.Assemble hose (11) between the new counterbalance valve and adapter (7).Assemble elbow (8) onto the top of adapter (7) as indicated in Illustration 14.Connect hose (14) that was assembled in Step 8 to elbow (8).
Illustration 15 g06257206
When the assembly is complete, make sure the pressure relief valve on top of the new counterbalance valve is turned all the way clockwise.Note: Hand tighten only. No special tooling is required.
Start the engine and extend and retract the counterweight several times to remove air from the system.
Check the hydraulic oil level and add if required.Counterweight To Zero Energy State After Rework
Before beginning work on the hydraulic system, you must bring the counterweight to a zero energy state. The counterweight is not in a zero energy state when fully retracted or fully extended. Follow the procedure below to ensure that the counterweight will not unintentionally move while you are working.
Move the machine to a smooth horizontal location.
Place the steering control lever in the NEUTRAL position.
Engage the parking brake.
Illustration 16 g06219515
Illustration 17 g06257997
Verify that the counterweight retention components are removed from location (A) on the counterweight frame.
Extend the counterweight approximately 30.5 cm (12 inch).
Stop the engine.
Illustration 18 g06257206
Turn the pressure release valve counterclockwise to open the valve. The counterweight will relax to the zero energy state.Note: When normal operation of the counterweight is desired, close the pressure release valve by turning clockwise.
Turn the key to the ON position, but do not start the engine.
Verify that the implement lockout switch is in the UNLOCKED position.
Move all hydraulic controls through all positions to relieve hydraulic pressure. Repeat this step until all hydraulic pressure