310-0510 IHT
24
HYDRAULIC COMPONENTS
seats for excessive wear or damage.
NOTE: Piston seats may be held in place
in the piston by residual oil.
22. Reassemble the pistons, springs and seats
into the cylinder block and set aside.
23. Remove the thrust bearing assembly (19)
from the housing (1). Inspect the thrust
bearing and thrust bearing cavity in the
housing.
INSPECTION
1. Inspect the pump cylinder block running
surface for wear or damage.
2. Inspect the swashplate and thrust bearing
assemblies for wear or damage.
3. Inspect the center section block running
surfaces. NOTE: These “sealing” surfaces
should be smooth in appearance without
scratches, scoring, nicks or abrasions. Drag
a fingernail across the surface to detect un-
even wear or scratches which may not be
visible.
4. Inspect the threaded check plug ports of the
center section for debris or damage.
5. Inspect the motor cylinder block running
surface for damage and wear.
6. Inspect all bearing, bushing and wear areas
in the housing.
ASSEMBLY
(Motor Block)
1.
(See Fig. 22)
Turn the housing (1) so the
axle horn is pointing down. This will assist in
the installation of the thrust bearing assem-
bly (19) keeping it in the bearing cavity dur-
ing installation of the center section assem-
bly.
2. Insert the thrust bearing (19) in the housing
(1). NOTE: Place the thin race of the bear-
ing towards the housing bearing cavity. The
thick race must face the pistons.
(Center Section)
3.
(See Fig. 21)
Install the new filter base (46)
onto the center section (3).
4. Install the check plugs (23 & 75), in their
correct location, into the center section (3).
Tighten the check plugs according to Table
5.
5. Install the bypass spring (43) into the filter
base (46).
6. Install the deflector (107) into the underside
of the filter (45).
7. Install the bypass actuator (47) into the un-
derside of the deflector (107).
8. Hold the stem of the bypass actuator (47)
from the top of the filter (45) to retain the
deflector (107) and bypass actuator (47) in
place when snapping the filter (45) onto the
filter base (46). NOTE: Filter installation is
best accomplished by using the spacer (65,
Page 32) as an assembly tool over each of
the (4) snaps while lightly tapping with a
rubber mallet. Excessive force will result in
damage to the plastic filter components.
9.
(See Figures 13 & 23)
Install the motor
shaft (24), pinion gear (27) and flat washers
(52 & 108) into the center section (3).
10. Assemble the motor block assembly (5)
onto the motor shaft (24).
11.
(See Fig. 23)
Install the motor shaft, center
section and motor block assembly so that
the block pistons contact the thrust bearing
race. NOTE: Hold in place and insure all
pistons are still positioned correctly in the
cylinder bore by confirming spring bias
against the center section.
12.
(See Fig. 19)
After applying thread adhe-
sive, insert the center section mounting
screws (44) while holding downward pres-
sure on the center section assembly (3,
Fig. 23).
Summary of Contents for 900 series
Page 2: ......
Page 6: ......
Page 12: ...ENGINE RELATED PARTS 6 ...
Page 62: ...HYDRO DRIVE AND BRAKE SYSTEM 56 ...
Page 98: ...CVT Drive and brake system 92 ...
Page 135: ...ELECTRICAL SYSTEM 129 Schematics LECTRIC 04 ...
Page 136: ...ELECTRICAL SYSTEM 130 ANUAL 04 ...
Page 152: ...Cutting Decks And Lift Shaft 146 ...
Page 158: ...APPENDIX 152 ...
Page 165: ...310 0510 IHT 5 MODEL RECOGNITION 618 0319 166768 104 1760 173839 036932 618 0389A ...
Page 190: ...310 0510 IHT 30 310 0710 EXPLODED VIEW ...
Page 192: ...310 0510 IHT 32 310 0610 EXPLODED VIEW ...
Page 194: ...310 0510 IHT 34 310 0510 EXPLODED VIEW 6 SEALANT 57 20W 50 OIL 127 SEAL O RING KIT ...
Page 198: ...310 0510 IHT 38 2008 HYDRO GEAR Printed in U S A Rev P1 ...