Toro Multi Pro 5800 Service Manual page 97

Removal (Fig. 44)
1. Park machine on a level surface, stop engine, en-
gage parking brake and remove key from the ignition
switch.
2. To prevent contamination of hydraulic system during
gear pump removal, thoroughly clean exterior of pump
assembly.
CAUTION
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.
3. Operate all hydraulic controls to relieve hydraulic
system pressure.
4. Read the General Precautions for Removing and
Installing Hydraulic System Components at the begin-
ning of the Service and Repairs section of this chapter.
5. For assembly purposes, label hydraulic hoses to
show their correct position on the gear pump.
6. Put drain pan below the gear pump. Remove hydrau-
lic hoses connected to gear pump. Put plugs or caps on
disconnected hydraulic hoses and fittings to prevent
contamination of the system.
7. Support the gear pump to prevent it from falling (Fig.
45). Remove two (2) cap screws and flat washers retain-
ing gear pump to piston pump.
8. Carefully pull gear pump from piston pump and lower
it out of the machine. Locate and retrieve O--ring (item
2) from between pumps.
9. If hydraulic fittings are to be removed from gear
pump, mark fitting orientation to allow correct assembly.
Remove fittings from pump and discard O--rings.
Installation (Fig. 44)
1. If fittings were removed from gear pump, lubricate
and place new O--rings onto fittings. Install fittings into
pump port openings using marks made during the re-
moval process to properly orientate fittings. Tighten fit-
tings (see Hydraulic Fitting Installation in the General
Information section of this chapter).
2. Lubricate new O--ring (item 2) and position it to gear
pump. Carefully raise gear pump and position it to the
piston pump.
Multi Pro 5800
3. Align spline teeth and slide gear pump input shaft
into piston pump coupling. Support gear pump to pre-
vent it from shifting. Secure gear pump to piston pump
with two (2) cap screws and flat washers.
4. Remove plugs or caps from disconnected hydraulic
hoses of the gear pump. Lubricate new O--rings and
install hoses to correct location on gear pump.
IMPORTANT: Use only hydraulic fluids specified in
Operator's Manual. Other fluids could cause system
damage.
5. Check and adjust oil level in hydraulic reservoir.
6. Properly fill hydraulic system (see Charge Hydraulic
System in this section).
7. Stop engine and check for hydraulic oil leaks. Check
hydraulic reservoir oil level.
1. Gear pump
Page 4 - - 59
1
2
Figure 45
2. Piston pump
Hydraulic System