Service Manual

SECTION 4 - CONTROL COMPONENTS

3121231 – JLG Lift – 4-29

Pressure Adjust Valve Installation Pressure Check Valve Installation

Pressure Adjust Valve Installation

1. Adjust Valve Cap 4. Valve Ball

2. Adjustment Screw 5. Adjust Valve Port

3. Valve Spring 6. Extend (Pressure) Port

(Shown Plugged)

Note: Adjust pressure per specification shown in Section-1 of this

Service Manual.

Pressure Check Valve Installation

1. Check Valve Assembly 5. Check Valve Port

2. O-Ring Seal 6. Extend (Pressure) Port

3. O-Ring Seal 7. Return Port

4. Backing Ring

Note: Extend (Pressure) and Return Ports Shown Plugged