Lull 944E-42 Service Manual - Manual (Page 240)

Engine: Cummins 4BT 3.9, B4.5T and QSB 4.5T
7.38 Model 644E-42/944E-42 Rev. 6/04
41. Label and disconnect these alternator wires:
• [AG1] and [AG2] from G terminal (1)
• [AB1] and [AB2] (644E-42, SN 20118 & Before,
0160002519 thru 0160003689 and 944E-42) or
Link Cable (644E-42, SN 0160003690 & After)
from B terminal (2)
• [AD1] from D terminal (3) and
• [AW1] from W terminal (4)
42. At the negative starter stud (5), label and disconnect
the negative (-) battery cable (6).
43. At the positive starter stud (7), label and disconnect
the positive (+) battery cable (8) and starter positive
buss bar (9). Leave the wires (11) connected to the
starter positive buss bar.
44. At the engine block (12), label and disconnect the
frame ground strap (13) and the negative buss bar
(14), with the wires still connected.
45. For jump start protection, a protective plastic
cover (10) is installed around the starter solenoid
terminal and mounting screw. A removable, tethered
cap (15) allows access to the terminal mounting
screw.
46. Use a small, flat knife blade (16) inserted next to the
cap (15) so that the cap pops out of the protective
cover.
47. Label the blue wire (17) from the starter solenoid
terminal. Use a small phillips screwdriver to loosen
the screw far enough to allow the blue wire to be
removed from the terminal.
48. Disconnect (unplug) the fuel shut off solenoid
(644E-42, SN 20118 & Before, 0160002519 thru
0160003689 and 944E-42), fuel shut off valve
(644E-42, SN 0160003690 & After) wire harness
lead (18).
MU6600
1 2
3
4
1 2
3
4
(644E-42, SN 20118
& Before,
0160002519 thru
0160003689 and
944E-42)
644E-42,
SN 0160003690
& After
MU6570
7
8
9
11 10
5
6
12
14
13
MU6580
10
15
16
17
MU3090
18
19
20