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Multi Pro 5700--D Hydraulic SystemPage 4 -- 43
Removal (Fig. 40)
1. Park machine on a level surface, stop engine, en-
gage parking brake, and remove key from the ignition
switch.
CAUTION
Rotate steering wheeland depress traction ped-
al in both forward and reverse to relieve hydrau-
lic system pressure and to avoid injury from
pressurized hydraulic oil.
2. Operate all hydraulic controls to relieve hydraulic
system pressure.
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.
4. Remove flange head screw and flange nut that se-
cure front and rear guard plate. Remove four (4) flange
nuts thatretain guard plates to pumpmount bracket. Re-
move guard plates from machine.
5. Label all hydraulic connections to ease reassembly.
Clean hydraulic hose ends prior to disconnecting the
hoses from hydraulic motor.
6. Disconnect hydraulic hoses frommotor. Allowhoses
to drain into a suitable container.
7. Put caps or plugson disconnectedhoses andfittings
to prevent contamination.
8. Remove lock nuts, flat washers, cap screws, and
coupler spacersthat securerubber couplingto hydraulic
motor hub.
9. Remove two (2) flange head screws and flange nuts
that secure hydraulic motor to pump mount bracket.
10.Remove hydraulic motor from machine.
11.If needed, loosen set screws in hydraulic motor hub.
Pull hub from motor shaft. Locate and remove woodruff
key from motor shaft. Remove set screws from hub.
Clean threads of set screws and hub.
12.If hydraulic fittingremoval is needed, note orientation
of hydraulic fittings before removing fittings from motor.
Installation (Fig. 40)
1. Ifremoved, lubricate newO--rings and installhydrau-
lic fittings to motor.
2. If motor hub was removed, apply antiseize lubricant
to motor shaft. Install woodruff key in shaft and slidehub
onto motor shaft.
3. Position motor on pump mounting bracket andinstall
flange head screws and flange nuts to motor and mount-
ing bracket. Leave fasteners loose.
4. Place coupling spacers into rubber coupling. Install
cap screws, flat washers, and locknuts to s ecure rubber
coupling to motor hub. Make sure that cap screw
threads extend through lock nut.
5. If motor hub was removed, apply Loctite #242 (or
equivalent) to threads of motor hub set screws. Install
set screws into hub to secure hub to motor shaft.
6. Turn pump shaft by hand and position motor on
mounting bracket to best align the coupling assembly
between the pump shaft and the hydraulic motor shaft.
7. Secure motor to mounting bracket by tightening
flange head screws and flange nuts.
8. Lubricate new O--rings and install hydraulic hoses to
correct hydraulic fittings on motor.
9. Position front and rear guard plates to pump mount
bracket. Install and tighten flange head screw and
flange nut to guard plates. Install flange nuts to secure
guard plates to pump mount bracket.
10.Check fluid level in hydraulic oil reservoir and adjust
as required (see Operator’s Manual).
11.Properly fill hydraulic system (see Charge Hydraulic
System in the Service and Repairs section of this chap-
ter).
12.Stop engine and check for hydraulic oil leaks. Check
hydraulic reservoir oil level.
1. Spray pump drive motor
2. Hydraulic hose (from PWM CF port)
3. Hydraulic hose (to PWM EX port)
Figure 41
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Hydraulic
System