Service Bulletin

Customer Service Bulletin
Commercial Business Group
Workman
®
3000 and 4000 Series Vehicles
Model/Serial Range: Model Number: Serial Numbers:
07200 30001-60476 (Workman 3200)
07202 60001-60382 (Workman 3200)
07205 30001-60494 (Workman 3300-D)
07206 50001-60115 (Workman 3300-D)
07215 50001-60218 (Workman 4300-D)
07216 50001-60168 (Workman 4200)
Subject: Hydraulic Pump Pulley failure.
The fit of the Pulley on the Hydraulic Pump Shaft may allow enough movement between
the parts during operation to promote keyway damage. A setscrew has been added to the
hub directly over the keyway on all replacement pulleys to control movement and prevent
failure.
Parts listed below are available through your local Toro distributor. Setscrew (3245-31)
must be ordered separately. Installation instructions are included with this bulletin.
94-5228 Pulley Assembly (Workman 3200 & 4200)
94-5227 Pulley Assembly (Workman 3300)
94-5237 Pulley Assembly (Workman 4300 )
INSTALLATION INSTRUCTIONS
1. Install parts as shown.
2. Apply anti-seize or equivalent to shaft of
pump before installing pulley.
3. After installing key and pulley, tighten locknut
to a torque of 130-160 in/lb (150-184 KgCm).
4. Tighten setscrew to a torque of 27-32 in/lb
(32-36 KgCm).
5. Install pump suction line, then fill hydraulic
pump through pressure port with clean
hydraulic oil.
6. After installing the pump and connecting
hydraulic lines, adjust belt tension (Refer to
Service Manual engine section for proper
tension specification). Start the engine and
operate at idle speed until air is out of
hydraulic system.
7. Stop the engine and check oil level in
transaxle. Add oil (Dexron II or III) if
necessary.
Pulley Assembly
Hydraulic
Pump
Apply Anti-Seize
to shaft
Locknut and
Washer
Setscrew
Fan Mount Bracket
Ref: 08-02 Copyright

, 1997. The Toro Company