Removal (Fig. 38)
Park machine on a level surface, stop engine, en•
1.
1
gage parking brake, and remove key from the ignition
switch.
CAUTION
3
Rotate steering wheel and depress traction ped•
al in both forward and reverse to relieve hydrau•
lic system pressure and to avoid injury from
pressurized hydraulic oil.
2
2.
system pressure.
Operate all hydraulic controls to relieve hydraulic
Figure 43
1.
2.
PWM Valve
Solenoid
3.
Solenoid connector
3.
Read the General Precautions for Removing and
Installing Hydraulic System Components at the begin•
ning of the Service and Repairs section of this chapter.
1
4.
Clean hydraulic hose ends prior to disconnecting the
hoses from PWM Valve.
Label all hydraulic connections to ease reassembly.
3
2
5.
PWM Valve. Allow hoses to drain into a suitable contain•
er.
Disconnect four (4) hydraulic hoses from fittings in
4
6.
Put caps or plugs on disconnected hoses and fittings
to prevent contamination.
7.
Disconnect PWM Valve solenoid connector from
machine wiring harness (Fig. 43).
Figure 44
8.
Remove two (2) cap screws and flange nuts that se•
cure PWM Valve to pump mount bracket. Locate and re•
trieve two (2) flat washers from between PWM Valve and
pump mount bracket. Remove PWM Valve from ma•
chine.
1.
2.
IN port (from gear pump)
CF port (to motor)
3.
4.
EX port (to oil cooler)
Solenoid coil
Installation (Fig. 38)
1.
Place two (2) cap screws into PWM Valve mounting
holes. Install flat washer on screws and position Valve
to pump mount bracket. Install and tighten flange nuts
to secure PWM Valve to bracket.
2.
Remove caps and plugs from hydraulic hoses and
fittings. Lubricate new o–rings and install hydraulic
hoses to fittings in PWM Valve.
3.
Plug PWM Valve solenoid connector into machine
wiring harness.
4.
Check fluid level in hydraulic oil reservoir and adjust
as required (see Operator’s Manual).
5.
Operate machine and inspect for leaks.
Multi Pro 5700–D
Page 4 – 47
Hydraulic System
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