Transport Cylinder
A transport cylinder is included in the traction circuit to
reduce traction pump control arm movement when op-
erating in Hi speed (2WD). This reduced control arm
movement limits pump swash plate rotation to prevent
excessive transport speed. The transport cylinder is at-
tached to the forward, right side engine mount (Fig. 66).
13
3
14
1
RIGHT
FRONT
12
11
Disassembly (Fig. 66)
10
1.
decks, stop engine, apply parking brake and remove
key from the ignition switch. Raise and support hood.
Park machine on a level surface, lower cutting
2
4
5
6
2.
removal, thoroughly clean exterior of pump assembly.
To prevent contamination of hydraulic system during
7
8
9
1
6 15
3.
Installing Hydraulic System Components at the begin-
ning of the Service and Repairs section of this chapter.
Read the General Precautions for Removing and
Figure 66
1.
2.
3.
4.
5.
6.
7.
8.
Carriage screw (2 used)
Cylinder spacer
Transport cylinder
Lock nut (2 used)
Piston
9. Seal
10. O--ring
11. Fitting
12. O--ring
13. Hydraulic hose
14. RH engine mount
15. Jam nut
4.
hydraulic hose from cylinder fitting. Put plugs in hose
and fitting to prevent contamination of the system.
Putadrainpanbelowthetransportcylinder.Remove
Backup ring (2 used)
O--ring (2 used)
Retaining ring
16. Cap screw
5.
mount. Locate and remove cylinder spacer from be-
tween transport cylinder and engine mount.
Remove transport cylinder assembly from engine
1
6.
If cap screw is to be removed from piston, carefully
2
measure the distance from the piston to the end of the
cap screw before loosening the jam nut (Fig. 67). This
distance will be necessary for assembly.
7.
guide.
Disassemble transport cylinder using Figure 66 as a
3
Assembly (Fig. 66)
MEASURE
DISTANCE
1.
Lubricate all transport cylinder components with
clean hydraulic oil. Assemble transport cylinder and
install cylinder to engine mount using Figure 66 as a
guide. Make sure that cylinder spacer is between trans-
port cylinder and engine mount.
Figure 67
1.
2.
Transport cylinder
Cap screw
3.
Pump control arm
2.
If the cap screw was removed from the piston, make
sure that distance from the piston to the end of the cap
screw is the same as the distance measured before dis-
assembly (Fig. 67).
3.
Remove plugs from hose and fitting. Install hose to
fitting on transport cylinder (see Hydraulic Hose and
Tube Installation in the General Information section of
this chapter).
Groundsmaster 4000--D/4010--D
Page 4 -- 85
Hydraulic System
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