JLG G6-42A Service Manual - Manual (Page 86)

Cab and Covers
4-10 G6-42A,G9-43A, G10-43A
4.4 CAB REMOVAL
Note: To help ensure safety and optimum performance,
replace the cab if it is damaged. Refer to the appropriate
parts manual for ordering information.
Inspect the cab, its welds and mounts. If modification,
damage, a cracked weld and/or fatigued metal is
discovered, replace the cab. Contact the local distributor
with any questions about the suitability or condition of a
cab.
Note: Remove and label cab components as needed
before removing the cab from the machine. Label,
disconnect and cap hydraulic hoses. Transfer cab parts
to the replacement cab after the replacement cab is
securely mounted on the machine.
1. Park machine on a firm, level surface. Allow
sufficient overhead and side clearance for cab
removal. Level the machine, fully retract boom, lower
boom, place travel select lever in (N) NEUTRAL
position, engage park brake and shut engine OFF.
2. Block all four wheels to help prevent the machine
from moving. Assure that there is sufficient overhead
and side clearance for cab removal.
3. Open engine cover. Allow the system fluids to cool.
4. Properly disconnect battery.
5. Place a funnel at the base of the radiator to channel
the drained coolant into the container. Loosen the
drain petcock and allow the coolant to drain.
6. Transfer the coolant to a container with a cover, and
label as “Used Antifreeze.” Dispose of the used
coolant at an approved recycling facility.
7. Tighten the radiator drain petcock.
8. Disconnect cab heater hoses. Refer to Section
4.3.7, “Heater/Air Conditioning System (if
equipped).”
9. Remove necessary dash panels to gain access to
electrical wiring connections. Label and disconnect
harnesses. Push harness connectors through the
opening cab.
10. Remove boom joystick from is mounting position.
Refer to Section 4.3.4, “Boom Joystick Assembly.”
Label, disconnect and cap all hydraulic hoses
attached to boom joystick. Cap all fittings and
openings to keep dirt and debris from entering
hydraulic system.
11. Remove frame level and attachment tilt and auxiliary
control joystick. Refer to Section 4.3.5, “Frame
Level, Attachment Tilt, Auxiliary Hydraulics and
(G10-43A) Outrigger Joysticks.” Label, disconnect
and cap all hydraulic hoses attached to the joystick.
Cap all fittings and openings to keep dirt and debris
from entering hydraulic system.
12. Label, disconnect and cap all hydraulic hoses
attached to steering orbital valve. Cap all fittings and
openings to keep dirt and debris from entering
hydraulic system.
13. Label, disconnect and cap all hydraulic hoses
attached to the service brake valve. Cap all fittings
and openings to keep dirt and debris from entering
the hydraulic system.
14. Push all hydraulic hoses through opening in cab.
15. Disconnect engine air filter and hydraulic oil
reservoir breather from their brackets at top of cab.
16. Move air filter and breather clear from cab so they do
not become damaged during cab removal.
17. Remove the fuel tank from the cab. Refer to Section
7.6.2, “Fuel Tank.”
18. Open Cab: Route a sling with a minimum lifting
capacity of 1000 lbs (453 kg) under the inner four
braces (14) and behind the center cross support
above the wind shield or install two lifting eye bolts
(15) in the threaded holes on the roof of the cab
above the B pillars (16).
19. Enclosed Cab: Install two lifting eye bolts (14) in
threaded holes on roof of cab above B pillars (16).
WARNING
The protection offered by this ROPS/FOPS will be
impaired if subjected to any modification or structural
damage, at which time replacement is necessary.
ROPS/FOPS must be properly installed using
fasteners of correct size and grade, and torqued to
their specified value.
MY0610
14 15
16