Hydraulic Manifold (High Flow Hydraulics Kit)
Removal (Fig. 45)
2
1.
(if installed), shut engine off and engage the parking
brake. Remove key from the ignition switch.
Parkvehicleonalevelsurface,raiseandsupportbed
RIGHT
FRONT
9
11
2.
Read the General Precautions for Removing and
7
Installing Hydraulic System Components at the begin-
ning of the Service and Repairs section of this chapter.
3
1
6
5
9
4
CAUTION
2
8
Before performing any service or repair on hy-
draulic system components, relieve system
pressure to avoid injury from pressurized hy-
draulic oil. Stop the engine, remove key from the
ignition switch, rotate the steering wheel in both
directions, lower or support the bed and operate
other hydraulic accessories.
7
10
3.
Label and disconnect hydraulic hoses and tubes
from hydraulic manifold. Install caps or plugs in hoses,
tubes and fittings to prevent contamination and leakage
of hydraulic oil.
Figure 45
4.
Remove manifold from vehicle using Figure 45 as a
guide.
1.
2.
3.
4.
5.
6.
Hydraulic manifold
Hydraulic tee fitting
Flange head screw
Flange nut
7.
8.
9.
10. Hydraulic hose
11. Hydraulic tube
O--ring
Hydraulic tube
O--ring
5.
If hydraulic fittings are to be removed from manifold,
mark fitting orientation to allow correct assembly. Re-
move fittings from manifold and discard O--rings.
Frame bracket
Hydraulic hose
Valve Cartridge Service (Fig. 46)
1
1.
Make sure the entire outer surface of the manifold is
clean before removing the valve.
2
2.
valve. Carefully slide solenoid off the valve.
Remove nut securing solenoid coil to the cartridge
5
ft--lb
(6.8 N--m)
25
(34
ft--lb
N--m)
IMPORTANT: Use care when handling the valve car-
tridge. Slight bending or distortion of the stem tube
can cause binding and malfunction.
3
3.
Remove cartridge valve with a deep socket wrench.
Note correct location for O--rings, sealing rings and
backup rings on valve. Remove and discard seal com-
ponents.
4
4.
to the sealing surfaces, damaged threads or contamina-
tion.
Visually inspect the port in the manifold for damage
Figure 46
1.
2.
Nut
Solenoid coil
3.
4.
Solenoid cartridge valve
Manifold body
Hydraulic System
Page 9 -- 58
Workman HD Series
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