Installation - JLG Lull 1044C-54 II Series Service Manual

Boom and Transfer

Installation

Joystick
6-4
3. Tag, loosen, and remove two (2) swivel tees (Item 11) from connectors
(Item 9) on bottom of joystick.
4. Tag, loosen, and remove remaining four (4) hydraulic hoses (Item 12)
from connectors (Item 10).
5. Tag and disconnect two (2) lead connectors (Item 6) from wiring
harness (Item 5).
6. Loosen and remove four (4) each capscrews (Item 1) and lockwashers
(Item 2) securing joystick (Item 7) to control panel.
7. Remove joystick and take it to a suitable area for further disassembly
and cleaning.
8. Remove six connectors (Items 9 and 10) from bottom of joystick and
manifold. Clean with solvent. Dry with compressed air and inspect for
damage. Replace if necessary.
(Ref. Fig. 6-3) The following steps are required to install the joystick.
1. Install two (2) connectors (Item 9): one in center port in bottom of
joystick (Item 7) and the other in the bottom of the manifold. Torque
connectors to 25–29 ft-lbs.
2. Install remaining four (4) connectors (Item 10) in ported guides in
bottom of joystick body. Torque connectors to 25–29 ft-lbs.
3. Install assembled joystick on control panel (Item 8) with four (4) each
capscrews (Item 1) and lockwashers (Item 2). Torque capscrews to
50 in-lbs.
4. Reconnect two (2) lead connectors (Item 6) to wiring harness (Item 5).
5. Clean swivel nuts on hoses and tees with solvent.
6. Reconnect swivel tees/hydraulic hoses (Item 11) to connectors
(Item 9). Torque swivel nuts to 130–150 in-lbs.
7. Reconnect remaining four (4) hydraulic hoses (Item 12) to connectors
(Item 10). Torque swivel nuts on hoses to 235–265 in-lbs.
8. Reconnect two (2) lead connectors (Item 6) to wiring harness (Item 5).
9. Install side panel (Item 13) on control panel with two (2) lockwashers
(Item 15) and capscrews (Item 14). Torque capscrews to 96 in-lbs.
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