JLG 4017RS Service Manual - Manual (Page 92)

Cab
4-8 3614RS, 4017RS
4.3.8 Air Conditioning (if Equipped)
If the air conditioning system requires servicing, contact the
local JLG dealer or certified air conditioning service center.
Refer to Section 2.5, “Fluids, Lubricants and Capacities,” for
refrigerant type and capacity.
4.4 CAB REMOVAL
Note: To help ensure safety and optimum performance,
replace cab if it is damaged. Refer to appropriate parts manual
for ordering information.
Inspect cab, its welds and mounts. If modification, damage, a
cracked weld and/or fatigued metal is discovered, replace
cab. Contact local JLG dealer with any questions about
suitability or condition of a cab.
Note: Remove and label cab components as needed before
removing cab from machine. Label, disconnect and cap
hydraulic hoses. Transfer cab parts to replacement cab after
replacement cab is securely mounted on machine.
1. Park machine on a firm, level surface. Allow sufficient
overhead and side clearance for cab removal. Level
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 machine from
moving. Assure that there is sufficient overhead and
side clearance for cab removal.
3. Open engine cover. Allow system fluids to cool.
4. Properly disconnect battery.
5. Place a funnel at base of cooling system to channel
drained coolant into suitable container. Remove drain
plug and allow coolant to drain.
6. Transfer coolant to a container with a cover, and label as
“Used Antifreeze.” Dispose of used coolant at an
approved recycling facility.
7. Replace and tighten drain plug.
8. Label and disconnect cab heater hoses. Refer to Section
4.3.7, “Heater/Air Conditioning System (if Equipped).”
9. Label, disconnect and cap all hydraulic hoses attached
to the steering orbitrol valve (2). Cap all fittings and
openings to keep dirt and debris from entering
hydraulic system.
10. Label, disconnect and cap all hydraulic hoses attached
to the brake assembly (3). Cap all fittings and openings
to keep dirt and debris from entering hydraulic system.
11. Remove rear cab cover and securing hardware.
12. Disconnect cab ground strap.
13. Label and disconnect the cab harness connectors. Move
the harnesses clear of the cab to prevent damage
during cab removal.
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.
M 7840 Z
2
3
M 7890 Z