Maintenance
Adjustments
Note:
Shut off engine, wait for all moving parts to
stop, engage parking brake, and remove key before
servicing, cleaning, or making any adjustments to
the unit.
CAUTION
Raising the unit for service or maintenance
relying solely on mechanical or hydraulic
jacks could be dangerous. The mechanical or
hydraulic jacks may not be enough support or
may malfunction allowing the unit to fall, which
could cause injury.
Do Not rely solely on mechanical or hydraulic
jacks for support. Use adequate jack stands or
equivalent support.
Auxiliary Pump Drive Belt
Adjustment
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. To tighten belt, loosen the 3/8 inch nyloc nut on
auxiliary pump belt idler pulley. Slide bolt inward
in slot and retighten nyloc nut.
3. When properly adjusted, the belt should have 1/2
inch (1.3 cm) of deflection with three pounds of
pressure on the belt midway between the auxiliary
pump and engine pulley.
Transmission Drive Belt
Tension Adjustment
•
Checking Existing Belt:
1. Stop engine, wait for all moving parts to stop,
and remove key. Engage parking brake.
2. Measure the spring length from inside the
idler bracket to the inside of the flanged nut
as shown in Figure 12.
Figure 12
1.
Measure spring length
3.
Idler bracket
2.
Flanged nut
3. Adjust the nut until the spring length measures
2 5/8 to 2 3/4 inches (67–70 mm) maximum.
•
Installing a New Belt:
1. Stop engine, wait for all moving parts to stop,
and remove key. Engage parking brake.
2. Install the new belt.
3. Measure the spring length from inside the
idler bracket to the inside of the flanged nut as
shown in Figure 12. Set the spring length to
2 3/8 inches (60 mm).
4. Start the engine and allow the machine to run
for 30 seconds.
5. Stop engine, wait for all moving parts to stop,
and remove key.
6. Check the spring length and adjust the
nut until the spring measures 2 3/8 inches
(60 mm).
Jackshaft Drive Chain
Tension Adjustment
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Lift the rear of the unit and support using jack
stands or equivalent support.
3. Check the chains on both sides of the unit for
proper tension. The chains should be able to
move up and down 1/2-3/4 inch (12-19 mm).
4. Loosen the hydro mounting bolts and slide to
adjust the tension.
30
Summary of Contents for SAR481KA30
Page 1: ...STAND ON AERATOR For Serial Nos 312 000 000 Higher Part No 4501 251 Rev A...
Page 11: ...Safety 116 6459 116 6460 116 6462 116 6990 116 7709 11...
Page 37: ...Schematics Schematics Electrical Diagram 37...
Page 38: ...Schematics Electrical Schematic 38...
Page 39: ...Schematics Hydraulic Diagram 39...
Page 41: ...Service Record Date Description of Work Done Service Done By 41...
Page 42: ...42...
