Service Manual

ManualsBrandsToro ManualsRiding EquipmentToro 74279TE

85PK Series

REMOVAL, INSPECTION AND

ASSEMBLY OF INPUT SHAFT

Refer to Figure 15.

Disassembly

1. Remove the retaining ring (22).

2. Remove the lip seal (20).

3. Remove the spacer (21).

4. Remove the shaft (18) and bearing (19)

assembly from the pump.

Inspection

1. Inspect the input shaft (18) for worn splines,

surface damage, or keyway damage. Replace

shaft assembly if necessary.

2. Inspect the bearing (19) for evidence of scoring,

corrosion, or damage. If the bearing must be

replaced, remove the retaining ring and use a

press or bearing puller to remove the bearing.

3. Inspect and replace the spacer (21) if it is bent

or broken.

4. Inspect and replace the retaining ring (22) if it is

bent or broken.

NOTE: Upon removal, all seals, O-rings

and gaskets should be replaced.

Assembly

Figure 15. PK Pump Input Shaft

1. If removed, press bearing (19) onto shaft (18)

tight against the shoulder of the shaft. Install

retaining ring onto the shaft (18).

2. Install input shaft assembly (18) into the housing

(1) bore.

Light tapping with a rubber mallet may

be necessary on the input shaft (18) once the

bearing is aligned with the housing (1) bore.

Verify that the shaft rotates smoothly.

3. Install spacer (21).

4. Install new lip seal (20) with the flat side of the

seal toward the outside of the pump.

5. Remove the plastic wrap.

6. Install retaining ring (22).

NOTE: If trunnion arm is to be removed,

do not assemble input shaft until the trun-

nion arm is installed.

NOTE: During installation, lightly lubri-

cate all seals, O-rings and gaskets with

clean petroleum jelly prior to assembly.

Also, protect the inner diameter of seals

by covering the shaft with plastic wrap.