Gear Pump - Toro 30821 Service Manual

Gear Pump

RIGHT
FRONT
1. Piston pump
2. Gear pump
3. Hydraulic hose (tank suction)
4. Hydraulic hose (hydraulic manifold)
5. Hydraulic hose (steering valve)
6. Hose clamp
Removal (Fig. 108)
1. Remove muffler from the engine to gain access to
the gear pump (see Muffler Removal in Chapter 3 - Ku-
bota Diesel Engine).
2. Drain hydraulic oil from hydraulic tank (see Change
Hydraulic Fluid in this section).
WARNING
Before disconnecting or performing any work
on the hydraulic system, all pressure in the
system must be relieved. See Relieving Hy-
draulic System Pressure in the General Infor-
mation section.
3. Remove gear pump from the piston pump using Fig-
ure 108 as guide.
4. If hydraulic fittings are to be removed from pump,
mark fitting orientation to allow correct assembly.
Hydraulic System (Rev. G)
7 8
3
6
1
7. Hydraulic barb fitting
8. O- ring
9. O- ring
o
10. 90 hydraulic fitting
11. O- ring
12. O- ring
4
12
13
14
Figure
108
Installation (Fig. 108)
1. If hydraulic fittings were removed from gear pump,
install fittings to pump using marks made during the re-
moval process to properly orientate fittings.
IMPORTANT: Position gear pump to the piston
pump so that the gear pump suction port is facing
down.
2. Install gear pump to the piston pump using Figure
108 as guide. Torque pump mounting cap screws from
27 to 31 ft- lb (37 to 42 N- m).
3. Fill hydraulic tank with new hydraulic fluid (see Trac-
tion Unit Operator's Manual).
4. Install muffler to the engine (see Muffler Installation
in Chapter 3 - Kubota Diesel Engine).
Page 4 - 106
9
5
10
11
2
15
16
17
o
13. 90 hydraulic fitting
14. O- ring
15. Cap screw
16. Flat washer
17. O- ring
Groundsmaster 3500- D
27 to 31 ft- lb
(37 to 42 N- m)