Labrie EXPERT Maintenance Manual page 299

Figure 5-31 Relief valve on pump
Adjustment screw
Figure 5-32 Relief valve on chassis
To adjust the body vane pump relief valve:
1. Lock out and tag out the vehicle (see Locking Out and Tagging Out the Vehicle on page 14).
2. Install the 0–4000 PSI pressure gauge on the quick-connect coupler located on the valve inlet
cover.
Adjustment screw
Hydraulic System 289