Labrie ALLEY -GATOR RIGHT-HAND, Maintenance Manual

Page: 86 / 108

76 Maintenance
Figure 3-48 Main relief valve on arm & body pump
10.
Once the pressure of the main relief valve on the arm and body pump has been properly set,
ADJUST the main relief valve pressure on the main (arm and body) valve (see Figure 3-46). To
do so:
10 a.
Using an Allen key TURN the adjustment screw COUNTER-CLOCKWISE until the
pressure reaches 2800
psi.
10 b.
Once done, TIGHTEN BACK the locknut of the main relief valve.
11.
Once the pressure of the main relief valve on the main (arm and body) valve has been properly
set, ADJUST the tailgate section front relief valve pressure (see Figure 3-47). To do so:
11 a.
While pulling the tailgate lever outward, TURN the tailgate adjustment screw COUNTER-
CLOCKWISE until the pressure reaches 2500
psi using an Allen key.
11 b.
Once done, TIGHTEN BACK the locknut of the tailgate front relief valve.
12.
LOOSEN the locknut of the tailgate section rear relief valve (at the back of the arm and body
directional control valve) [see Figure 3-49].
Figure 3-49 Tailgate section relief valve at rear of valve block
13.
With an Allen key, ADJUST the pressure to 2500 psi while pushing the tailgate section lever
inward (assuming that you are behind the valve block).
TURN the adjustment screw IN to RAISE the PRESSURE or OUT to DECREASE PRESSURE.
Correct pressure is 2500 psi.