Gear Pump
9
5
4
10
8
7
3
6
11
12
13
14
2
RIGHT
1
15
FRONT
16
17
27 to 31 ft--lb
(37 to 42 N--m)
Figure 70
Hydraulic barb fitting
O--ring
1.
2.
3.
4.
5.
6.
Piston pump
Gear pump
7.
8.
9.
13. 90o hydraulic fitting
14. O--ring
Hydraulic hose (tank suction)
O--ring
15. Cap screw
16. Flat washer
17. O--ring
Hydraulic hose (hydraulic manifold)
Hydraulic hose (steering valve)
Hose clamp
10. 90o hydraulic fitting
11. O--ring
12. O--ring
Removal (Fig. 70)
Remove muffler from the engine to gain access to
the gear pump (see Muffler Removal in Chapter 3 -- Ku-
bota Diesel Engine).
Installation (Fig. 70)
1.
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.
2.
Hydraulic Fluid in this section).
Drain hydraulic oil from hydraulic tank (see Change
IMPORTANT: Position gear pump to the piston
pump so that the gear pump suction port is facing
down.
WARNING
2. Install gear pump to the piston pump using Figure 70
as guide. Torque pump mounting cap screws from 27 to
31
ft--lb (37 to 42 N--m).
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. Fill hydraulic tank with new hydraulic fluid (see Trac-
tion Unit Operator’s Manual).
4.
in Chapter 3 -- Kubota Diesel Engine).
Install muffler to the engine (see Muffler Installation
3.
Remove gear pump from the piston pump using Fig-
ure 70 as guide.
4.
mark fitting orientation to allow correct assembly.
If hydraulic fittings are to be removed from pump,
Hydraulic System (Rev. D)
Page 4 -- 100
Groundsmaster 3500--D
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