PRESSURE RELIEF VALVE TESTS (Cont) - TM-5-2410-237-231166

TM 5-2410-237-23

HYDRAULIC SYSTEM TESTS - CONTINUED

0227 00

PRESSURE RELIEF VALVE TESTS - CONTINUED

Tilt Relief Valve.

Operate machine until hydraulic system is at operating temperature. Lower implements to the ground and bull-

dozer blade level. Shut down engine. Move all hydraulic control levers to all positions to relieve pressure in lines.

Return all control levers to HOLD position.

Install a 0-4000 psi (0-27,579 kPa) gage in pressure tap (3).

387-953

Raise blade high enough to allow for maximum tilt in either direction.

With engine at low idle, extend or retract tilt cylinder to full extent of travel. Observe gage reading. Maximum

gage reading should be 2450 psi 25 psi (16,892 172 kPa).

Return blade to level position and lower to the ground.

NOTE

One 0.005 in. shim will change relief pressure by 35 psi (240 kPa).

One 0.048 in. shim will change relief pressure by 335 psi (2310 kPa).

To adjust tilt relief valve setting, remove tilt control valve and perform Relief Valve Setting Adjustment (WP 0201

0227 00-8