JLG 4017RS Service Manual - Manual (Page 139)

8-9 3614RS, 4017RS
Hydraulic System
b. Disassembly
Dispose of the old reservoir according to local regulations
concerning hazardous materials disposal.
1. Note the orientation of all fittings, adapters and tubes
on the hydraulic tank.
2. Label and remove all fittings, adapters and tubes from
the hydraulic tank.
c. Cleaning and Drying
If contaminated hydraulic oil or foreign material is in the
tank, the tank can usually be cleaned.
To clean the hydraulic oil reservoir:
1. Have a dry chemical (Class B) fire extinguisher near the
work area.
2. Remove the hydraulic oil reservoir drain plug, and safely
drain any hydraulic oil into a suitable container. Dispose
of hydraulic oil properly.
3. Clean the hydraulic oil reservoir with a high-pressure
washer, or flush the tank with hot water for five minutes
and drain the water. Dispose of contaminated water
properly.
d. Inspection
1. Inspect the hydraulic oil reservoir thoroughly for any
cracks, slices, leaks or other damage.
2. With the hydraulic oil reservoir removed from the
machine, plug all openings except one elbow fitting.
Install the elbow fitting, and apply approximately
7-10 kPa (1-1.5 psi) of air pressure through the elbow.
Check the reservoir for leaks by applying a soap solution
to the exterior and look for bubbles to appear at the
cracked or damaged area.
e. Assembly
1. Install the previously removed fittings, adapters and
tubes in the correct orientation.
2. Properly torque all fittings and adapters as required.
f. Reservoir Installation
1. Place the hydraulic oil reservoir into its original
orientation.
2. Secure the hydraulic oil reservoir to the frame with the
previous mounting hardware.
3. Uncap and connect the previously labeled hydraulic
hoses to their appropriate locations. Be sure all lines are
free of kinks and sharp bends.
4. Fill the reservoir with oil until oil level is visible in the
gauge window. Refer to Section 2.5, “Fluids, Lubricants
and Capacities.”
5. Check the hydraulic oil reservoir for leaks.
6. Properly connect the battery.
7. Close and secure the engine cover.
8. Start machine and check all hydraulic functions for
proper operation. Check for any hydraulic oil leaks. Shut
machine OFF and check hydraulic oil level. If oil is warm,
oil level should be visible in the gauge window. Add
hydraulic oil if necessary.
9. Remove the Do Not Operate Tag from the ignition key
switch and the steering wheel.
MZ8010