Skyjack SJ519 TH, Service Manual, Page: 101 / 108

101
SJ519 TH 216942AC
Non-Routine Maintenance Section 4 – Procedures
Steering Pressure
▪
Steering Pressure Check:
1. Release residual pressure by moving the joystick
several times in each direction
2. Install a 5,000 psi gauge into port GP2 at the
front of the main manifold as shown in figure
below.
GP2 Test
Port
Ma
chin
e
Fro
nt
3. With engine running at low idle and steering
dead-headed in either direction, read the
pressure indicated on the gauge. The correct
pressure should be 2,000 psi.
4. If reading is other than 2,000 psi, adjust the orbit
motor.
▪
Steering Pressure Adjustment:
1. Remove the plug on the top face of the orbital
motor.
2. With engine running at low idle, turn the
adjustment screw clockwise (CW) to increase
the pressure reading and counter-clockwise
(CCW) to reduce the pressure reading until
desired reading is achieved.
3. Check the reading to ensure that the correct
pressure is maintained.