JLG X23J - X700AJ Service Manual - Manual (Page 308)

SECTION 3 - CHASSIS & TURNTABLE
3121448 – JLG Lift – 3-281
CLEANING COOLING AIR AREA
THE ENGINE MUST BE SWITCHED OFF AND COOLED DOWN
BEFORE CLEANING!
– If severely contaminated, clean the cooling fins on the
cylinder and cylinder head, and also the fan blades in the
flywheel. If necessary, con-tact your local HATZ service
station.
CHECKING SCREW CONNECTIONS
– Check the tightness of all threaded connections and
take up slack if necessary, provided that these can be
reached during maintenance work.
Do not tighten the cylinder head bolts.
THE ADJUSTING SCREWS AT THE ENGINE GOVERNOR AND ON
THE INJECTION SYSTEM ARE SEALED WITH LACQUER AND ARE
NOT TO BE TIGHTENED OR ADJUSTED.
CLEANING THE EXHAUST MESH INLET
EXHAUST SYSTEM COMPONENTS WILL NATURALLY BE HOT
AND MUST NOT BE TOUCHED WHILE THE ENGINE IS RUNNING
OR UNTIL IT HAS COOLED DOWN AFTER BEING STOPPED.
– Unscrew hex nut and remove the exhaust mesh insert.
– Remove any deposits in the mesh insert by means of a
wire brush.
– Check the exhaust mesh insert for cracks or damage
and, if necessary replace with a new one.
– Screw on hexagon nut „1“ by approx. 1 turn.
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