Service Manual
September 2016
Base Assembly
68
AWP Super Series • IWP Super Series
Part No. 38139
7
Measure from the bottom of the number 1
column, make a reference mark 6 inches /
15.2 cm up the column.
8
Slide the cable mounting bracket up, until the
top
of the bracket is even with the reference
mark from step 7. Tighten the mounting
fasteners.
9
Measure from the bottom of the number 2
column, make a reference mark 10 inches /
25.4 cm up the column.
10
Slide the cable striker bracket down until the
top of the bracket is even with the reference
mark from step 9. The spring will need to be
compressed, when the cable striker bracket is
pulled down. Tighten the mounting fasteners.
11
Pump the foot pedal to raise the base.
12
Pull the base release handle to be sure the
bas
e lowers. Adjust if necessary.
How to Adjust the Foot Pump
Pressure Relief Valve
Component damage hazard.
The work area and surfaces
where this procedure will be
performed must be clean and
free of debris that could get into
the hydraulic system.
1 Pull
the base lowering handle to fully lower the
base.
2
Tag and disconnect the hydraulic hose from
the port at the rod end of the base cylinder.
Cap the cylinder port
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
co
nnections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
3
Connect a 0 to 3000 psi / 0 to 250 bar
pressure gauge to the hydraulic hose.
4
Slowly pump the foot pedal and note the
pressure
Result: The pressure
gauge should read 1600
psi ± 50 psi / 110 bar ± 3.4 bar. Adjust if
necessary.
5
Remove the manifold cover.
6
Hold the lift relief valve with a wrench and
remove the cap (schematic item J).
7
Adjust the internal hex socket. Turn it
clockwise to increase the pres
sure or
counterclockwise to decrease the pressure.
8
Install the relief valve cap.
Tip-
over hazard. Do not adjust
the relief valve higher than
specified.
9
Repeat step 4 to confirm the relief valve
setting. Re-
adjust if necessary.
