Hobart 9OC24S Operation Manual page 155

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OPERATION, MAINTENANCE, AND OVERHAUL MANUAL, TM-240A
SELF-PROPELLED GENERATOR SET, SPEC. NO. 5381A
D.
1 Normal belt position
2 Deflected position (13 pounds pressure)
Pelt Deflection Check
Figure 19
Use a Cummins gage no.
ST-l 138, or equivalent forthe fan belt which is 1 l/16
inch wide. At proper tension, gage reading should be 90 to 110 pounds (each
belt).
If a gage is not available, tension may be checked manually by depressing a belt
with the index finger to determine the amount of belt deflection obtained when a
force of approximately 13 pounds is applied at a point halfway between pulleys
(see Fig. 19).
See Fig. 18 for belt deflection, tension checkchart.
Check and Adjust Alternator Belt
(1) Check belt tension (see Para. 8, C, above).
(2) If belt requires adjustment,
loosen adjusting bracket capscrew (3, Fig. 20)
sufficiently to allow alternator position to be changed.
(3) Reposition alternator to tighten (or loosen) belt as required.
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