JLG 4017 Service Manual - Manual (Page 59)

4.7 4017
Cab and Covers
b. Heater Assembly Installation
1. Connect the wiring harness connections to the
blower.
2. Lift the heater assembly to the bottom of the cab
floor, and secure with four ripp bolts, six lockwashers
and six nuts. Connect the hoses to the heater.
Secure with two hose clamps.
3. Fill the cooling system completely with a 50/50
mixture of ethylene glycol and water, allowing time
for the coolant to fill the engine block. The cooling
system capacity is listed in Section 2.4, “Fluids,
Lubricants and Capacities.”
4. Connect the battery negative (-) cable to the battery
negative (-) terminal.
IMPORTANT: When the engine is initially started, run it
briefly at low idle and check the machine for any visual
sign of fluid leakage. STOP the engine immediately if
any leakage is noted, and make any necessary repairs
before continuing.
5. Wait for the engine to cool and check the coolant
level. Add coolant to the overflow bottle as required
to bring the coolant to the proper level.
6. Replace the cab bottom shield.
7. Replace the belly pan.
8. Close and secure the engine cover.
4.4 CAB REMOVAL
IMPORTANT: 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 JLG distributor or
the JLG Service Department with any questions about
the suitability or condition of a cab.
IMPORTANT: 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. Lower the boom, retract the boom, place
the transmission control lever in the (N) NEUTRAL,
engage the park brake and shut the engine OFF.
2. Open the engine cover. Allow the system fluids to
cool.
3. Remove the battery negative (-) cable from the
battery negative (-) terminal.
4. Remove the eight bolts holding the engine belly pan
and remove the belly pan.
5. Refer to Section 7.4, “Engine Cooling System,” for
proper coolant draining.
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. Working under the cab, loosen and remove the six
ripp bolts, remove the cab bottom shield.
Note: Label all hoses to ensure correct installation.
8. Loosen the hose clamps and disconnect the heater
hoses.
9. Remove the lens-head screws and remove the
console panel below the right side window to access
the wire harness connections, the right rear side
panel and the left rear cup holder panel to access
the two rear cab mount bolts. Also remove the
rubber floor mat to access the front two cab mount
bolts
10. Disconnect the cab-to-wiring harness connectors at
the circuit board. Push the harness connectors
through the opening at the right front corner of the
cab.
MZ0480
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