Testing the Steering Valve P-Port Bypass (continued)
be replaced. If the test did not restore lift and implement pressure, inspect the
hydraulic pump end cap for failed O-rings.
4. Remove the caps from the steering return hose and T-port fittings, connect the
hose to the fitting; refer to Installing the Hydraulic Hoses and Tubes (O-Ring Face
Seal), page 5–10.
Adjusting the Hydraulic Pump Tow Valve
Figure 21
G447508
Tow valve
1. Park the machine on a level surface, lower any attachments to the ground,
engage the parking brake, and remove the key from the ignition.
2. Relieve hydraulic system pressure; refer to Relieving Pressure from the Hydraulic
System, page 5–2.
3. Remove the hydraulic pump cover; refer to Removing and Installing the Hydraulic
Pump Cover, page 7–15.
4. Locate the tow valve
.
5. Loosen the valve a minimum of 1 turn but no more than 3 turns.
4520P Page 5–7 Hydraulic System: General Information
09.40003Rev 00
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