Lull 944E-42 Service Manual - Manual (Page 738)

Electrical System
9.228 Model 644E-42/944E-42 Rev. 6/04
4. If the harness is functioning properly, test the joystick
button (5) for continuity. With the joystick button
pressed down, test across the two pins inside the
joystick connector plug (13) for continuity and
shorting. If there is no continuity, replace the joystick
handle (9). Refer to Section 9.14.10, b. “Front
Joystick Handle Replacement.”
5. Reassemble the access panel (1) to the side
console (2). Secure in place with six capscrews (3)
(two not shown). Torque the capscrews to 7 - 8 lb-ft
(9,5 - 10,6 Nm).
b. Front Joystick Handle Replacement
1. Remove the front joystick valve assembly (4) from
the side console. Refer to Section 4.3.8, a. “Front,
Rear and Frame Sway Joystick Assembly Removal.”
2. Secure the valve body (6) in a bench vise or by other
suitable means.
3. Roll the boot (7) up to expose the locknut (8) at the
bottom of the handle assembly (9).
4. Lift the wire harness bushing (10) to clear the
retaining hole (11) in the ring on the joint
assembly (12). Slide the wire harness (13) out
through the slot.
5. Use a vise grip to remove the handle assembly (9)
from the joint assembly (12). Use a punch in the
hole (14) on the joint assembly to hold it in place
while loosening the handle assembly.
6. Remove the handle assembly (9) with the boot. (7) If
not replacing the boot, remove the boot from the
handle assembly.
7. To assemble the new handle, slide the wire
harness (13) through the boot (7) and assemble the
boot to the handle assembly (9).
8. Roll the boot (7) up to expose the locknut (8) at the
bottom of the handle assembly (9).
9. Thread the handle assembly (9) onto the joint
assembly (12). Use a punch in the hole (14) on the
joint assembly to hold it in place while tightening the
handle assembly. Torque the handle assembly to
33 ± 3.5 lb-ft (44,7 ±4,7 Nm).
10. Assemble the front joystick valve assembly (4) into
the side console. Refer to Section 4.3.8, b. “Front,
Rear and Frame Sway Joystick Assembly
Installation.”
MU4040
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MU4160
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6
7
8
9
10
11
12
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14
5