Service Manual Instruction Manual

SECTION 3 - CHASSIS & TURNTABLE
3121171 – JLG Lift – 3-121
5. Use a tie strap as shown below to secure the hood sup-
port when the hood is being installed.
6. Carefully lift the engine hood assembly onto the hood
support.
NOTE: The engine hood assembly weighs approximately 84 lbs.
(38 kg).
7. Install the bolts and clamps that secure the engine hood
assembly to the hood support.
8. Start the engine and check for proper operation and any
leakage. If the engine does not start immediately, the
fuel lines may need primed.
NOTE: The delay in starting the engine can be reduced by remov-
ing the fuel filter, pre-filling the filter with fuel, and rein-
stalling the filter before attempting to start the engine.
3.27 DEUTZ EMR 2 (S/N 87575 TO PRESENT)
NOTE: S/N’s 85693 & 85910 also incorporated EMR2.
The EMR2 consists of the sensors, the control unit and the
actuator. Engine-side controls as well as the JLG Control Sys-
tem are connected by means of separate cable harnesses to
the EMR control unit.
The sensors attached to the engine provide the electronics in
the control unit with all the relevant physical parameters In
accordance with the information of the current condition of
the engine and the preconditions (throttle position etc.), the
EMR2 controls an actuator that operates the control rod of the
injection pump and thus doses the fuel quantity in accordance
with the performance requirements.
The exact position of the regulating rod is reported back and,
if necessary, is corrected, by means of the control rod travel
sensor, situated together with the rotation magnets in a hous-
ing of the actuator.