JLG 4017PS Service Manual - Manual (Page 93)

4-9 3706PS, 3707PS, 4014PS, 4017PS, 33.7, 37.6, 37.7
Cab and Covers
5. Properly connect the battery.
6. Turn the ignition key to the ON position and check
the control functions.
7. Start the machine and allow engine to warm to
operating temperature. Check heat control at
different levels.
8. Install the plastic side cover. If necessary, install the
seat.
9. Close and secure the engine cover.
10. Remove the Do Not Operate Tag from the ignition
key switch and the steering wheel.
4.3.9 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 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 JLG dealer
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 the machine on a firm, level surface. Allow
sufficient overhead and side clearance for cab
removal. Level the machine, fully retract the boom,
lower the boom, place the travel select lever in the
(N) NEUTRAL position, engage the park brake and
shut the 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 the engine cover. Allow the system fluids to
cool.
4. Properly disconnect the battery.
5. Place a funnel at the base of the radiator to channel
the drained coolant into the container. Remove the
drain plug 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 plug.
8. Label and disconnect the cab heater hoses. Refer to
Section 4.3.7, “Heater/Air Conditioning System (if
Equipped).”
9. Remove the protective cover from the front of the
cab.
10. Label, disconnect and cap all hydraulic hoses
attached to the steering orbitrol valve (1). Cap all
fittings and openings to keep dirt and debris from
entering the hydraulic system.
11. Label, disconnect and cap all hydraulic hoses
attached to the service brake valve (2). Cap all
fittings and openings to keep dirt and debris from
entering the hydraulic system.
12. Disconnect the cab ground strap.
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.
MAM0420
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