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PAGE 18 — SP 1 SAW CE— OPERATION AND PARTS MANUAL — REV. #3 (06/09/08)
Figure 10. Pulley Alignment
3. Check V-belt tension by using a tension meter (3.0 lbs./
1.36Kg) against the inside belt at a mid point between the
two pulleys, or by deflecting the center belt at a mid point
3/16" (5 mm).
4. DO NOT over or under tighten the V-belt. Severe damage
can occur to the saw and engine crankshaft if the belt is
over-tensioned. A decrease of power to the blade and poor
performance will result if the belt is under-tensioned (loose
on pulleys).
Figure 9. V-Belt Cover
V-belt Alignment and Tensioning
This saw is equipped with premium V-belts that have been
aligned and tensioned by factory personnel. The V-belt must be
aligned and tensioned for proper operation of the saw.
Use the following procedure to check the alignment of V-belt:
1. Remove the bolts that secure the V-belt cover (Figure 9) to
the saw frame.
2. Check uniform parallelism (Figure 10) of V-belt and pulley
(sheaves). Use a straight-edge or machinist's square against
both pulleys and adjust both pulleys until equally aligned.
NOTE
V-belt alignment must be rechecked after
adjusting belt tension.
MQ STREET PRO 1 CE SAW — PREPARATION/PRE-INSPECTION
NEVER operate the saw without blade
guards and covers in place. DO NOT
operate with the front of the blade guard
raised. The blade exposure cannot exceed
180 degrees during operation. Adhere to
the safety guidelines or other applicable
local regulations.
WARNING
Figure 8. Blade Guard
CHECK the following on the blade guard (Figure 8):
■
Ensure the capacity of the blade guard is correct for an 18"
Diamond Blade.
■
Check that the guard is bolted firmly upon the saw frame.
■
Check that the spring tensioned front cover of the guard is
firmly seated with the rear section of the guard and there are
no gaps. NEVER lift the blade guard while engine is running.
NEVER attempt to check the V-belt with the
engine running. Severe injury can occur.
Keep fingers, hands, hair, and clothing away
from all moving parts.
V-Belt Check
A worn or damaged V-belt can adversely affect the performance
of the saw. If a V-belt is defective or worn, replace ALL the V-
belts. V-belts should always be replaced in sets.
Guards And Covers
ENSURE the V-belt Cover is in place and securely fastened
during operation of the saw (Figure 8).
WARNING