Diamond Products CC4144D - Manual (Page 25)

CC4144D Concrete Saw Manual 21
Figure 20: 2 of 4 Engine
Adjustment Screws
3. Turn the tension nut on the threaded rod near the
front of the engine counterclockwise to loosen the
belts.
Figure 21: Tension Nut
4. Remove the belts from the PTO sheave and from
the blade shaft sheave.
5. Loop and align the new belts around the blade shaft
sheave and around the PTO sheave, starting at the
outer groove.
6. Turn the tension nut (shown in picture above) on the
threaded rod near the front of the engine clockwise
to tighten the belts. Retest the belt tension and
readjust the nut as necessary to reach the required
tension setting. DO NOT exceed the manufacturer’s
tension settings.
7. Retighten the four engine adjustment screws.
8. Turn the tension nut counterclockwise slightly to
relieve tension on the threaded rod.
Tensioning or Replacing the Hydraulic Motor Belt
Figure 22: Hydraulic Motor Belt
1. Test the belt tension. Refer to Appendix C for
additional information and belt tension settings. If
adjustments are necessary, continue with step 2.
2. Loosen the two hydraulic pump adjustment screws
(one above and one below the pulley). If tensioning
the belt, proceed with steps 6–7. If replacing the
belt, continue with steps 3–7.
Figure 23: Hydraulic Pump
Adjustment Screws
3. Pull the hydraulic pump toward the front of the saw
to loosen the belt.
4. Remove the belt from the PTO sheave and from the
hydraulic pump pulley. Note: The belt can only be
replaced when the blade drive belts are off the PTO
sheave.
5. Loop and align the new belt around the innermost
groove on the PTO sheave and around the hydraulic
pump pulley.