Lull 944E-42, Service Manual

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Electrical System
9.212 Model 644E-42/944E-42 Rev. 6/04
e. Transmission Neutral Start Feature
The transmission neutral start feature is a safety feature
designed to prevent the engine from starting with the
transmission in FORWARD (F) or REVERSE (R).
Shifting into NEUTRAL DETENT (N) activates the neutral
relay (E3) (1) located in the relay and fuse panel (2).
When the travel select lever is in NEUTRAL DETENT (N),
electrical power flows to the starter relay, allowing the
starter to engage and start the engine.
Test the transmission neutral start circuit as follows:
• The starter MUST NOT operate with the travel select
lever in FORWARD or REVERSE.
• The starter MUST NOT operate when the park lock
is OFF (disengaged).
• The starter MUST operate with the travel select lever
in NEUTRAL DETENT and the park lock is ON
(engaged).
If the starter fails to turn the engine with the travel select
lever in NEUTRAL DETENT (N) (3) and the ignition
switch (4) is in the START position (5), refer to Section
9.8.25, “644E-42 Engine Start Circuit & Troubleshooting.”
The neutral position contacts in the travel select lever are
non-repairable. Replace the travel select lever if
defective.
9.14.2 Fuel Shutoff Solenoid (644E-42, SN
20118 & Before, 0160002519 thru
0160003689)
The fuel shutoff solenoid (6), located on the rear of the
fuel injection pump is a solenoid that lets fuel enter the
injection pump when the ignition switch is turned to the
START or RUN positions. The fuel shutoff solenoid is
connected to a mechanical linkage (7).
a. Fuel Shut-off Solenoid Removal
1. Unlock and open the engine cover (9).
2. If the vehicle has dual batteries, disconnect both
negative battery cables (11 and 12) from both
batteries.
To access the lower battery (13), loosen the
knob (14) far enough so that the lip (15) on the upper
battery box clears the knob. Lift up the upper battery
box (16) and swing it out, so that the box clears the
hydraulic tank support bracket, to gain access to the
lower negative battery cable (11). Disconnect the
lower negative battery cable.
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E10 E5
E4 E9
E3 E8
E2 E7
E1 E6
MU33802
1
2
F
N
R
MU3591
4
5
3
MU3600
6
7
8
4110390
1.
2.
OU0780
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