Hobart 9OC24S Operation Manual page 156

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OPERATION, MAINTENANCE, AN.D OVERHAUL~MANUAL, TM-240A
SELF-PROPELLED GENERATOR SET, SPEC. NO. 5381A
CAUTION: IF A PRY BAR IS USED, EXERCISE CARE TO AVOID
DAMAGE TO ANY PARTS.
(4) Tighten capscrew (3) and recheck be It tension.
(5) Repeat steps (2) through
(4) as required until belt tension is correctly adjusted.
E.
Check and Adjust Fan Belts
(1) Check belt tension (see Para. 8, C, above).
(2) If belts require adjustment, loosen two clamping screws sufficiently to allow fan
hub to move in the fan mounting bracket.
(3) Adjust belt tension by turning adjusting screw (1, Fig. 21) clockwise to tighten
belts or counterclockwise to loosen belts.
(4) Tighten clamping screws and recheck belt tension.
(5) Repeat steps (2) through
(4) as required until belt tension is correctly adjusted.
F. Replace Belts
(1)
(2)
(3)
(4)
2-2
Page- 32. -
Always shorten the distance between pulley centers so belt(s) can be installed
without force.
CAUTION: NEVER "ROLL" A BELT ON OVER A PULLEY AND NEVER USE
A PRY BAR TO IN STALL A BELT.
When two or more belts are used to drive a component, replace belts with a
matched set.
It is necessary to partially remove fan belts in order to remove and install an
alternator belt.
The following are some rules for new replacement belts:.
(a) Belt riding depth should not vary over l/16 inch (1.587 mm) on fan belt
matched sets.
(b) Pulley misalignment must not vary more than l/16 inch (1.587 mm) for each
foot (0.3848 m) of distance between pulley centers.
(c) Belts should not "bottom" in pulley grooves, nor should they protrude more
than 3/32 inch (2.381 mm) above top edge of groove.
act 30/73