Engine Cooling System - JLG sky trak mmv Service Manual

2.13.4

Engine Cooling System

a. Engine Coolant Level Check (10 Hour Intervals)
10
MS21402
1. Level the vehicle, ground the attachment, place the
travel select lever in the [N] NEUTRAL position, place
the neutral lock lever in the [N] NEUTRAL LOCK
position, engage the parking brake switch and shut
the engine OFF.
2. Unlatch and open the engine cover.
3. Check the coolant level in the overflow bottle (8).
When the coolant is hot, the bottle should be half to
three-quarters full. When the coolant is cool, the
bottle should be one-quarter to half full. Add coolant
(use a 50/50 mixture of ethylene glycol and water) as
required through the overflow bottle.
Model MMV Rev. 12/04
General Information, Specifications and Maintenance
b. Drain and Flush the Radiator
OS0800
1. Level the vehicle, ground the attachment, place the
travel select lever in the [N] NEUTRAL position, place
the neutral lock lever in the [N] NEUTRAL LOCK
position, engage the parking brake switch and shut
the engine OFF.
2. Place an Accident Prevention Tag on both the
ignition switch and steering wheel, stating that the
vehicle should not be operated. (Refer to Section
1.5, Accident Prevention Tag Usage .)
3. Unlatch and open the engine cover. Allow the engine
to cool before proceeding. Draining and flushing the
cooling system while the engine is hot can cause
8
cracks in the engine block.
OM1630
2000
MS3000
WARNING:
procedure when the engine is hot. Wait for the
engine, muffler, and tailpipes to cool down
before proceeding. Failure to do so could result
in severe burns.
WARNING:
radiator cap while the engine is hot. The cooling
system is under pressure. Hot coolant can
cause severe burns or eye injury. Wear protec-
tive clothing and safety glasses.
OS0810
DO NOT attempt this
NEVER remove the
2.33