Toro Greensmaster 3250-D 04383, Руководство по обслуживанию

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Greensmaster 3250--D Hydraulic System (Rev. I) Page 4 -- 57
Removal (Fig. 28)
CAUTION
Before continuing further, read and become fa-
miliar with General Precautions for Removing
and Installing Hydraulic System Components.
1. Before removing any parts from the hydraulic sys-
tem, park machine on a level surface, engage parking
brake, lower cutting units, and stop engine.
2. Clamp pump inlet hose to prevent draining the hy-
draulic tank.
3. Label all hose connections for reassembly pur-
poses.
4. Loosen hose clamp, and remove pump inlet hose
from the gear pump. Allow hydraulic oil to drain from
hose into a suitable container.
5. Remove hydraulic hoses and O--rings from hydrau-
lic fittings. Allow hydraulic oil to drain from hoses into a
suitable container.
IMPORTANT: Note position hydraulic fittings for
reassembly purposes.
6. Remove hydraulic fittings and O--rings from the
gear pump.
7. Support gear pump. Separate gear pump from the
hydrostat by removing both hex socket head screws and
flat washers. Remove O--ring from between the gear
pump and hydrostat.
Installation (Fig. 28)
1. Make sure mounting and O--ring sealing surfaces
on the gear pump and hydrostat are clean.
2. Replace all O--rings with new ones. Apply clean hy-
draulic oil to all O--rings.
3. Place O--ring on the gear pump.
4. Position gear pump to the hydrostat so that the
pump inlet is facing up.
5. Secure gear pump to the hydrostat with both hex
socket head screws and flat washers. Torque screws
from 27 to 31 ft--lb (37 to 42 N--m) .
6. Inspect threads and sealing surfaces of hydraulic fit-
tings and hydraulic hose connectors. Replace any dam-
aged or worn fittings or connectors.
7. Install O--rings into gear pump. Install fittings and
tighten to positions noted during removal.
8. Secure pump inlet hose and hose clamp to the gear
pump. Tighten hose clamp.
9. Remove clamp from pump inlet hose to allow hy-
draulic oil flow to the gear pump.
Hydraulic System