Filter
Top Products
MQ SP4030 SAW • OPERATION MANUAL — REV. #0 (01/22/09) — PAGE 45
MAINTENANCE
Belts and Pulleys
This saw uses a 6 groove 3V X 500 optibelt for its drive
belt system and a hydrostatic pump belt (AX-35).
V-Belt Tension
Ideal V-belt tension is the lowest tension at which the belt
will not slip under peak load conditions.
V-Belt Tensioning
The belt is tensioned via the turnbuckle and engine mount
assemblies.
1
2
3
1. Blade Shaft Drive Belt
2. Hydraulic Pump
3. Belt Tensioner Pulley
Figure 45. Belt Locations
CAUTION — Keep belts clean
Keep belts clean of foreign material that may cause
slippage. Never dress belts as this can cause premature
failure.
Figure 46.
1. Engine Mount Adjustment Screw
2. Engine Mount Adjustment Nut
3. Turnbuckle Pivot Screw
4. Engine Mount Pivot screw
5. Turnbuckle
1
2
3
4
5
V-Belt Replacement/Tensioning Procedure
1. Remove the Engine (Drive) Pulley Fan
2. Loosen Engine Mount Adjustment Nut (2)
3. Loosen Engine Mount Adjustment Screw (1)
4. Loosen Turnbuckle (5)
5. Pivot engine forward to further remove belt tension
the Eng Pivot Screw (4) is set at 50ft/lbs and should
permit engine rotation.
5. Remove/Replace V-Belt (#37577)
6. Rotate Engine back until V-Belt is taught
7. Tighten Turnbuckle until proper tension is achieved
8. Tighten Eng Mount Screw and Nut (1 &2)
9. Replace Engine (Drive) Pulley Fan