Maintenance; Maintenance Chart; Check Tire Pressure; Maintenance Free Battery - Murray 7800409 Operator's Manual

Maintenance

Maintenance Chart

TRACTOR AND MOWER
Every 8 Hours or Daily
Check safety interlock system
Clean debris off tractor and mower deck
Clean debris from engine compartment
Every 25 Hours or Annually *

Check tire pressure

Check mower blade stopping time
Check tractor and mower for loose hardware
Every 50 Hours or Annually *
Clean battery and cables
Check tractor brakes
See Dealer Annually to
Lubricate tractor and mower
Check mower blades **
* Whichever comes first
** Check blades more often in regions with sandy soils
or high dust conditions.
NOTE: Illustrations and pictorials begin on page 1.
Check Tire Pressure
Check the air pressure in the tires. Tires with too much air
pressure will cause the unit to ride rough. Also, the wrong
air pressure will keep the mower housing from cutting level.
The correct air pressure is: Front Tires 0,97 BAR (14 PSI),
Rear Tires 0,69 BAR (10 PSI).
14
ENGINE
First 5 Hours
Change engine oil
Every 8 Hours or Daily
Check engine oil level
Every 25 Hours or Annually *
Clean engine air filter and pre-cleaner **
Every 50 Hours or Annually *
Change engine oil
Replace oil filter
Annually
Replace air filter
Replace pre-cleaner
See Dealer Annually to
Inspect muffler and spark arrester
Replace spark plug
Replace fuel filter
Clean engine air cooling system
* Whichever comes first
** Clean more often in dusty conditions or when
airborne debris is present.

Maintenance Free Battery

Remove The Battery (Figure 7)
To charge or clean the battery (A), remove the battery (A)
from the unit as follows.
WARNING: To prevent sparks, disconnect the black
battery cable (H) from the negative (-) terminal
before you disconnect the red cable (E).
WARNING: The battery contains sulphuric acid
which is harmful to the skin, eyes and clothing. If
the acid gets on the body or clothing, wash with
water.
1. Disconnect the black cable (H) from the negative (-)
terminal.
2. Disconnect the red cable (E) from the positive (+)
terminal (D).
3. Lift the battery tray (C) and the battery (A) out of the
unit.
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