Hobart 9OC24S Operation Manual page 284

GENERATOR DIVISION
HOB/\RT BROTHERS COMPAN"
OPERATION, MAINTENANCE, AND OVERHAUL MANUAL, TM-240A
SELF-PROPELLED GENERATOR SET, SPEC. NO. 5381A
(5) Use a long-handle ratchet wrench with l-inch socket to reach into the fan
housing (5, Fig. 2) and remove six screws (item 6, in exploded view Figure 3),
which attach the flexible coupling and fan assembly to the engine flywheel
adapter.
NOTE:
This is a small area in which to work because of fan blade interference.
The engine sometimes rotates as a result of torquing power applied to the
coup1 ing screws .
To prevent engine rotation, place the square end of
a 3/4 drive extension (3 to 4 inches long) in the square wrenching
facility in the front pulley. Attach a long flex-handle to the extension
and brace the handle against the floor or frame, etc., (see Fig. 4).
This illustration shows wrench in position for TIGHTEN ING flexible
coupling screws.
Position the wrench handle on the other side of the
engine for LOOSEN IN G screws.
CAUTION: NEVER USE THE FAN BLADES ON ANY PART OF THE FAN AS A
PRY POINT FOR PREVENTING ENGINE ROTATION.
1. Engine flywheel
2. Coupling to f lywhee I adapter
3. Adapter to flywheel screws
4. Fan
5. Coupling assembly
6. Coupling to flywhee I adapter screw
6-1
Generator Fan and Coupling (Typical)
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Figure 3
Ott 30/73
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