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PAGE 26 — MQ-WHITEMAN FS3SP CONCRETE SAW — PARTS & OPERATION MANUAL — REV. #0 (07/15/02)
3. Check V-belt tension (Figure 18) by using a tensionmeter
(6.0 - 9.0 lbs.) against the inside belt at a mid point between
the two pulleys, or by deflecting the center belt at a mid point
3/8” (10 mm) - 1/2” (13 mm).
Figure 18. V-Belt Tension
4.
DO NOT over or under tension the V-belts. Severe damage
can occur to the saw and engine crank shaft if the belts are
over tensioned. A decrease of power to the blade and poor
performance will result if the belts are under tensioned (loose
on pulleys).
5. If the V-belts becomes worn or loose, replace them by using
the following V-belt part numbers listed in Table 6.
Table 6. V-Belts and Pulleys
Engine Size V-Belt P/N Pulley P/N Blade Size
20 HP Engine
3VX375
10799
15365 14"
3VX355
15897
15366 20"
CORRECT V-BELT
TENSION 3/8 IN. (10 MM) TO
1/2 IN.(13 MM) WHEN
DEPRESSED AT MIDPOINT
AS SHOWN