Exmark Lazer Z SX Diesel Models 4500-501 Rev A - Manual (Page 36)

Maintenance
4. Torque the slotted nut to 125 ft-lb (169 N-m).
5. Then tighten nut until the next set of slots line up
with the cross hole in shaft.
6. Replace cotter pin.
Note: Do Not use anti-seize on wheel hub.
Check Engine Coolant Level
Service Interval: Before each use or daily
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 14).
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