Toro ProLine 20 HP 30611, Руководство оператора

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Maintenance
30
Cleaning the Cooling System
Service Interval/Specification
Before each use, remove grass clippings, dirt and
grime from the entire machine, muffler and engine air
intake screen Every 100 operating hours clean dirt
and chaff from the engine cylinder head fins and
blower housing. This will help insure adequate
cooling and reduce the possibility of overheating and
mechanical damage to the engine.
1. Raise seat and remove belt guard. See Removing
Belt Guard on page 21.
2. Open hood and pull spark plug wire(s) off.
3. To avoid overheating and possible engine
damage clean, grass, dust, dirt and oil from
outside of engine, air intake screen and muffler.
4. To clean cylinder head fins, remove engine from
chassis and remove cooling shrouds. Make sure
cooling shrouds are re-installed before operating
engine.
5. Reinstall belt gurard. See Installing Belt Guard
on page 21.
Adjust Belts
If belt slippage occurs, idler pulleys must be adjusted
to increase belt tension.
1. Disengage the power take off (PTO), set the
parking brake, and turn the ignition key to
“OFF” to stop the engine. Remove the key.
2. Raise seat and remove belt guard. See Removing
Belt Guard on page 21.
3. Measure distance from bottom of spacer on
pulley mounting screw to bottom of slot in idler
adjustment link. Distance should be 1/4 inch
(6 mm) or less (Fig. 28).
4. Unhook tension spring from side of frame
(Fig. 28).
5. To adjust, remove cotter pin and washer securing
idler adjustment link to spring anchor (Fig. 28).
6. Slide link off mounting pin and select new hole
until bottom of spacer is within 1/4 inch from
bottom of slot (Fig. 28).
7. Reposition link onto spring anchor and secure
with washer and cotter pin (Fig. 28).
8. Reinstall belt gurard. See Installing Belt Guard
on page 21.
Figure 28
1. 1/4 in (6 mm) space 2. Idler adjustment