Exmark Lazer Z D-Series 920 - Manual (Page 37)

Maintenance
6. Raise the rear of machine up and support with
jack stands (or equivalent support) just high
enough to allow drive wheels to turn freely.
7. Start engine and move throttle control ahead to
full throttle position. Move the speed control
levers to the full speed and run for several
minutes. Shut down machine and recheck oil
level.
Note: Do Not change hydraulic system oil (except
for what can be drained when changing filter), unless
it is felt the oil has been contaminated or been
extremely hot.
Changing oil unnecessarily could damage hydraulic
system by introducing contaminates into the system.
Check Engine Coolant Level
Service Interval: Before each use or daily
Note: If the engine coolant level is below the
indicator line on the overflow bottle when the
engine is cold, the coolant temperature gauge may
not register correctly during operation and/or
the warning buzzer may not sound if the engine
overheats.
1. Stop engine and wait for all moving parts to stop.
Make sure unit is on a level surface.
2. Check with engine cold.
3. View coolant level in overflow bottle on the left
side of the engine compartment. Coolant level
should be at the indicator line on the overflow
bottle.
4. If the coolant level is low, open hood or raise
radiator, remove the cap to the overflow bottle
and fill to the indicator line. Units should only be
filled with a 50/50 mix of Dex-Cool© extended
life coolant and water. Dex-Cool© can be
identified by its orange color.
WARNING
Engine coolant is hot and pressurized and
radiator and surrounding parts are hot. Spray or
steam from hot, pressurized liquid in the engine
cooling system and touching a hot radiator may
cause severe burns.
Allow the engine to cool completely before
removing the radiator cap or servicing any
component of the cooling system.
CAUTION
Engine coolant is toxic. Swallowing coolant can
cause poisoning.
• Do Not swallow.
• Keep out of reach of children and pets.
Change Engine Coolant
Service Interval: Every 4,000 hours/Every 4
years (whichever comes
first) Dex-Cool©
© © extended
life coolant (orange color)
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake. Machine must
be positioned on level surface.
2. Unhook seat latch, tilt seat up and tilt hood
forward to gain access to the cooling area. Do
Not raise radiator, as it may not fully drain in that
position.
WARNING
Engine coolant is hot and pressurized and
radiator and surrounding parts are hot. Spray
or steam from hot, pressurized liquid in the
engine cooling system and touching a hot
radiator may cause severe burns.
Allow the engine to cool completely before
removing the radiator cap or servicing any
component of the cooling system.
CAUTION
Engine coolant is toxic. Swallowing coolant
can cause poisoning.
• Do Not swallow.
• Keep out of reach of children and pets.
3. Drain coolant when engine is cool. Coolant may
be drained from the radiator by removing the
drain plug in the right rear corner. The engine
block may be drained by removing the rear
radiator hose and/or by opening the drain cock
on the right-hand side of the engine block (see
Figure 16).
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