JLG 450A_AJ Series II Service Manual - Manual (Page 201)

SECTION 3 - CHASSIS & TURNTABLE
3121180 – JLG Lift – 3-151
Speed Sensor Installation
NOTE: A new speed sensor comes with two hex nuts.
1. Remove one hex nut from speed sensor and discard
it.
2. Install speed sensor in housing until it contacts fly-
wheel.
3. Back off sensor 1/4 to 3/4 turn. Ensure sensor flats
are vertical and tighten nut.
3.22 ENGINE RADIATOR FILL PROCEDURE -
PERKINS & CATERPILLAR
SOME ENGINES REQUIRE A SPECIAL RADIATOR FILL PROCE-
DURE DUE TO COOLING SYSTEM CONFIGURATION. FAILURE TO
FOLLOW THIS PROCEDURE CAN DAMAGE ENGINE.
THE FOLLOWING FILL PROCEDURE SHOULD ONLY BE PERFORMED
WHEN ENGINE IS COLD.
ENGINE COOLANT IS UNDER PRESSURE. DO NOT REMOVE RADIA-
TOR CAP WHEN ENGINE IS WARM.
NOTE: If radiator cap is removed at any time after the follow-
ing steps are performed, coolant will flow out
whether engine is cold or hot.
1. Remove radiator and reservoir caps.
2. Fill radiator to top. Allow coolant to settle and add
coolant as necessary to top off radiator.
3. Reinstall radiator cap.
4. Remove plug from adapter and add coolant at this
location until radiator hose is full of coolant.
5. Using sealant JLG P/N 0100020 (Loctite #567),
install plug back into adapter.