Diamond Products CC6566 - Manual (Page 39)

CC6566 - CC6566-3 Concrete Saw Manual
Secondary Transmission V-Belt
Inspect the V-belt regularly for fraying, stress
cracks, and/or breakage and replace immediately if
there are damages.
Figure 64: Secondary Transmission V-Belt
Replacing the Secondary Transmission V-Belt
1. Remove the transmission fan guard.
2. Pull the rotary tensioner knob up and hold it in
place to create slack in the V-belt.
3. Remove the V-belt from the rear transmission
jackshaft pulley and release the tensioner knob.
4. Remove the V-belt from the transmission
pulley.
5. Loop and align the new V-belt around the
transmission pulley, and then pull the belt
forward toward the transmission jackshaft.
6. Pull the rotary tensioner knob up and hold it in
place. Loop and align the V-belt around the rear
transmission jackshaft pulley.
7. Release the rotary tensioner knob to tension
the secondary transmission V-belt.
8. Replace the transmission fan guard.
Engine V-Belt
Refer to the engine manual for maintenance
information on the engine V-belt.
Rotary Tensioner
Adjusting the Rotary Tensioner
1. Engage the transmission.
2. Pull the rotary tensioner knob up, remove the
belt from the rotary tensioner idler pulley, and
release the knob. The tensioner arm should
hang down in the 6:00 position.
3. Turn the rotary tensioner knob
counterclockwise until a light spring pressure is
felt. Using a marker, draw a line across the
tensioner housing and base. This is the zero-
reference line.
Figure 65: Zero-Reference Line
4. The tensioner base is made up of lugs and
notches. The lugs equal 20° of rotation and
represent the raised sections on the base. The
notches equal 10° of rotation and represent the
lowered sections on the base. Draw a new line
on the tensioner base only, 40° from the zero-
reference line in a counterclockwise direction.
5. Pull the rotary tensioner knob up, place the belt
around the rotary tensioner idler pulley, and
release the knob. The zero-reference line on
the tensioner housing should line up with the
40° line on the tensioner base.
6. If the lines match up, skip to step 11. If the lines
DO NOT match up, determine the direction of
rotation (clockwise if the 40° line is to the left of
the zero-reference line, and counterclockwise if
the 40° line is to the right of the zero-reference
line), and estimate the number of degrees the
rotary tensioner should move for proper
alignment.
7. Pull the rotary tensioner knob up and remove
the belt from the rotary tensioner idler pulley.
8. Holding the rotary tensioner together, slightly
loosen the rotary tensioner lock nut and rotate
the tensioner in the direction and the exact
number of degrees determined from step 7.
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