JLG 4017RS Service Manual - Manual (Page 122)

Engine
7-8 3614RS, 4017RS
b. Disassembly
Fuel tank is a one-piece unit and cannot be disassembled.
Fuel level indicator can be removed and reused on new
replacement tank. Dispose of old tank according to local
regulations concerning hazardous materials disposal.
c. Cleaning and Drying
If contaminated fuel or foreign material is in the tank, tank
can usually be cleaned.
To clean the fuel tank:
1. Have a dry chemical (Class B) fire extinguisher near work
area.
2. Remove the fuel or oil tank drain plug, and safely drain
any fuel into a suitable container. Dispose of fuel
properly.
3. Clean fuel tank with a high pressure washer, or flush
tank with hot water for five minutes and drain water.
Dispose of contaminated water properly.
4. Add a diesel fuel emulsifying agent to tank. Refer to
manufacturer’s instructions for correct emulsifying
agent-to-water mixture ratio. Refill tank with water, and
agitate mixture for 10 minutes. Drain tank completely.
Dispose of contaminated water properly.
5. Refill fuel tank with water until it overflows. Completely
flush tank with water. Empty fuel tank, and allow it to
dry completely.
d. Assembly
Fuel level indicator can be removed and reused on new
replacement tank. Dispose of old tank according to
local regulations concerning hazardous materials
disposal regulations.
e. Inspection
1. Inspect fuel tank thoroughly for any cracks, slices, leaks
or other damage.
2. With fuel tank removed from machine, plug all
openings except one elbow fitting. Install elbow fitting,
and apply approximately 7-10 kPa (1-1.5 psi) of air
pressure through elbow. Check reservoir
for leaks by applying a soap solution to exterior
and look for bubbles to appear at cracked or damaged
area.
f. Fuel Tank Installation
1. Using a floor jack, lift fuel tank and support bracket to
their original orientation on cab.
2. Connect previously labeled fuel hoses to their
appropriate locations. Secure with clamps. Connect fuel
sender.
3. Secure the fuel tank with previously used hardware.
Remove floor jack.
4. Fill fuel tank according to specifications.Refer to Section
2.5, “Fluids, Lubricants and Capacities.”
5. Check fuel tank for leaks.
6. Properly connect battery.
7. Close and secure engine cover.
8. Remove Do Not Operate Tag from ignition key switch
and steering wheel.
7.6.3 After Fuel System Service
1. Drain and flush the fuel tank if it was contaminated.
2. Vent air from fuel system in accordance with
instructions found in the appropriate Engine Operation
& Safety Manual.
3. Fill the fuel tank with fresh, clean diesel fuel as required.