Disassembly (Fig. 23)
Remove shaft seal (see Shaft Seal Replacement).
Assembly (Fig. 23)
1.
1. Install one crescent ring (Item 4) on inside portion of
driveshaft (Item 6), then install bearing (Item 22) and
other crescent ring. Install driveshaft and bearing as-
sembly into stator (Item 8).
IMPORTANT: Use caution when using a vise to
avoid distorting any pump components.
2.
(Item 6) facing down.
Secure flange end of pump in a vise with drive shaft
2.
install on stator.
Apply Dexron III ATF to wear plate (Item 10) and
3.
4.
gently tap housing with a soft face hammer to loosen
from stator (Item 8). Be careful not to drop any parts or
disengage gear mesh.
Remove four (4) socket head cap screws (Item 18).
Put your hand on gear end housing (Item 17) and
3.
Install one crescent ring (Item 4) to idler shaft, then
install ball key (Item 23), gear (Item 11) and other cres-
cent ring. Make sure to maintain the original gear loca-
tion. Apply Dexron III ATF to gear and idler shaft
assembly, then install into stator.
4.
to remaining gear and install to drive shaft (Item 6) main-
taining the original timing and locations.
Install shear pin (Item 7), then apply Dexron III ATF
5.
to mating teeth to retain gear ”timing” and location when
reassembling.
Before removing gears (Item 11), apply marking dye
5.
back–up seal (Item 14) and pressure plate (Item 13),
then install into gear end housing.
Apply Dexron III ATF to pressure plate seal (Item 15),
6.
15),
21)
Remove and discard the pressure plate seal (Item
back–up seal (Item 14) and wear plate seal (Item
as the pump is disassembled.
6.
Install dowel pins (Item 16). Apply Dexron III ATF to
7.
4)
and then remove bearing from drive shaft.
Press drive shaft and bearing assembly (Item 6, 22,
out of stator (Item 8). Remove crescent rings (Item 4)
seal plate (Item 9) and wear plate seal (Item 21), then
install. Assemble gear end housing (Item 17) to stator
(Item 8).
Inspection
7.
Install four (4) cap screws (Item 18) and tighten in a
crossing pattern from 9.5 to 12.5 ft–lb (13 to 17 N–m).
1.
2.
3.
Wash all parts in cleaning solvent.
8.
Install shaft seal (see Shaft Seal Replacement).
Check all parts for burrs, scoring, nicks, etc.
Check bearings (Item 12) in stator and gear end
housing for excessive wear or scoring. Replace the
bearings if necessary. Replace wear plate (Item 10) if it
appears scored, then stone face of gears. Replace
gears (Item 11) if excessively worn or damaged.
4.
Check bearing (Item 22) for smooth operation. Re-
place bearing if loose on shaft or noisy when rotated.
5.
Inspect square key (Item 5), shear pin (Item 7), ball
key (Item 23) and keyways in shafts for wear or damage.
Replace parts as necessary.
Workman 3000/4000 Series
Page 9 – 29
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Workman 3000, Toro Workman 4000 |
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| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
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| Publisher | toro.com |
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