Diamond Products CC7574DKV, Operator'S Manual

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CC7574DKV OPERATOR’S MANUAL
7. Place one of the removed setscrews into
the third setscrew hole (in line with slot) on
the bushing. Using a 1/2” impact wrench,
tighten the setscrew into the hole to
separate the sheave from the bushing. If
the sheave and bushing will not separate,
wedge a flat-head screwdriver into the slot
on the bushing and tap the other end of the
screwdriver with a rubber mallet to
separate the sheave and bushing.
8. Remove the sheave from the bushing.
9. Repeat steps 5–7 to remove the three
remaining sheaves.
10. Remove the setscrew used to separate the
sheave and bushing from all four bushings.
Installing Belt Sheaves
1. Fit the appropriate size sheave onto each
bushing.
2. On one side of the saw, place a
straightedge against the edge of the upper
or lower sheave. Adjust either sheave to
align the outside edge of both sheaves.
3. Place two setscrews into the setscrew
holes (in line with each other) on both
sheaves and retighten the setscrews to
secure.
Note: Make sure both sheaves are properly
aligned prior to securing.
4. Repeat steps 2–3 for the second set of
sheaves.
5. Reinstall both sets of belts on the sheaves.
6. Turn both blade drive belt tension bolts
(large threaded bolt on engine foot)
clockwise equally to tighten the belts. Test
the belt tension and readjust the bolts as
necessary. DO NOT exceed the
manufacturer’s tension settings.
7. Tighten the nut on both blade drive belt
tension bolts down to the engine foot.
8. Retighten the two engine cradle screws.
9. Close and latch the front hood assembly.
Blade Drive Belts
WARNING
• Turn off the engine prior to servicing the
belts.
•
Use extreme caution when working with
belts and rotating machine parts to avoid
entanglement.
CAUTION
•
Let the belts cool down prior to servicing
them.
Inspect all belts daily for fraying, stress cracks,
and/or breakage and replace immediately
when damaged. Always re-tension new belts
after the first four hours of use. DO NOT
exceed the manufacturer’s recommended belt
tension settings when tensioning belts.
Note: Over-tensioning belts may reduce the life
of the gearbox bearings. Under- tensioning
belts may cause slippage, shorter belt life,
and/or poor saw performance. Squealing belts
indicate looseness.
Tensioning/Replacing the Blade Drive
Belts
Blade Drive Belts
1. Unlatch and open the front hood.
2. Test the belt tension.
3. Loosen the two engine cradle screws using
the 1-1/16” & 1-1/8” open end wrench
located on the left side of the saw near the
gearbox expansion tank.
4. If tensioning the belts, proceed with steps
9-12. If replacing the belts, continue with
steps 5-12.
5. Loosen the nut away from the engine foot
on both blade drive belt tension bolts using
the 1-1/16” & 1-1/8” open end wrench
6. Turn both blade drive belt tension bolts
(large threaded bolt on engine foot)
counterclockwise to loosen the belts.
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