Terex Genie SX-150, Service And Repair Manual

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Service and Repair Manual December 2019
Manifolds
98 SX ™ -150 Part No. 1300669GT
8-2
Valve Adjustments -
Function Manifold
How to Adjust the Function
Manifold Relief Valve
Note: Perform this procedure with the boom in the
stowed position.
Note: Refer to Function Manifold Component list to
locate the system relief valve.
1 Connect a 0 to 5000 psi / 0 to 350 bar
pressure gauge to the test port on the function
manifold
2 Start the engine and raise the boom slightly
and completely lower the jib boom. Turn off
the engine.
3 Push and hold the auxiliary button and the jib
down button and observe the pressure
reading on the pressure gauge. Refer to
Specifications, Hydraulic Component
Specifications .
4 Use a wrench to hold the relief valve and
remove the cap.
5 Adjust the internal hex socket. Turn it
clockwise to increase the pressure or
counterclockwise to decrease the pressure.
Install the relief valve cap.
Tip-over hazard. Do not adjust
the relief valve higher than
specified.
6 Repeat step 3 to confirm relief valve pressure.
7 Remove the pressure gauge.
How to Adjust the Primary Boom
Extend Relief Valve
Note: Perform this procedure with the axles
extended.
1 Locate limit switch LSB4EO on the cable track
side of boom #2.
2 Disconnect the wire connector from the limit
switch and connect a jumper wire to pin 1 and
pin 2 of the deutsch connector on the upper
limit switch cable.
Note: The correct wire connector will be a 4 pin
connector with a red and blue marker on the cable.
3 Start the engine and fully extend the primary
boom. Turn the engine off.
4 Connect a 0 to 5000 psi / 0 to 350 bar
pressure gauge to the ptest port on the
function manifold.
5 Start the engine from the ground controls and
press and release the rpm select button until
the engine changes to high idle.