Exmark 312 Lawn Mower User Manual


 
Maintenance
5. Wipe the dipstick clean and re-insert the cap back
into the hydro. Lightly tighten the cap.
6. Remove the cap again and check the level of the
oil on the dipstick. See
Figure 24 for oil levels.
Figure 24
1. Full 2. Add
Note: The oil level on the dipstick will be
incorrect if the oil is checked when the unit is hot.
7. If the dipstick oil level is at the “add” mark add
Exmark Premium Hydro Oil.
8. Replace hydraulic reservoir cap and tighten until
snug. Do Not overtighten.
Check Tire Pressures
Service Interval: Every 50 hours
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Check tire pressure in drive tires.
3. Inate drive tires to 13 psi (90 kPa).
4. Semi-pneumatic caster tires Do Not need to be
inated.
Note: Do Not add any type of tire liner or foam
ll material to the tires. Excessive loads created by
foam lled tires may cause failures to the hydro drive
system, frame, and other components. Foam lling
tires will void the warranty.
Check Condition Of Belts
Service Interval: Every 50 hours
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Remove left and right belt shields on deck and lift
up oor pan to inspect deck drive belt.
3. Check under machine to inspect the pump drive
belt.
Note: No adjustments are required for belt
tension.
Lubricate Grease Fittings
Note: See chart for service intervals.
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Lubricate ttings with one to two pumps of
NGLI grade #2 multi-purpose gun grease.
Refer to the following chart for tting locations
and lubrication schedule.
Lubrication Chart
Fitting
Locations
Initial
Pumps
Number of
Places
Service
Interval
1. Deck and
Pump Idler
Pivots
1 2
Yearly
2. Front
Caster
Pivots
*0
2
*Yearly
* See step 3 for special lubrication instructions on
the front caster pivots.
3. Lubricate front caster pivots once a year. Remove
hex plug and cap. Thread grease zerk in hole and
pump with grease until it oozes out around top
bearing. Remove grease zerk and thread plug back
in. Place cap back on.
36