Tank Installation; Fuel Tank Verification - PREVOST H3-41 Maintenance Manual

SECTION 03 : FUEL SYSTEM
FIGURE 12: 208 US GALLONS FUEL TANK
WARNING
Before removing the bolts securing the tank
support to the frame, make sure the tank is
supported adequately. Failure to do so could
result in injury as well as damage to the tank.
7. From under the vehicle, on R.H. side,
unscrew the 4 bolts (2 in front, 2 in back)
retaining the tank support to the frame.
8. From under the vehicle, on the L.H. side,
unscrew the 2 bolts (1 in front, 1 in back)
retaining the tank support to the frame.
9. Carefully remove tank from under the
vehicle.

5.2 TANK INSTALLATION

Tank installation is the reverse of removal.
NOTE
Fastening of rubber flap must always be on
top, in line with clamp screw.
NOTE
Insert check valve assembly in right-side filler
hose, use hose clamp to fix it. Repeat with left
side filler hose on H3 series vehicles.
NOTE
When reinstalling lines, use Loctite 567 type
thread sealant on line fittings.
12 PA1621 Maintenance Manual All Series | Section Revised September 2017
WARNING
For proper assembly, check connections and
fasteners for tightness.
03094
FIGURE 13: FUEL TANK RETENTION
For each fuel tank retainers (Figure 13):
1. Clean nuts and stud threads.
2. Apply a Loctite 242 type thread adhesive on
stud threads.
3. Fix the retainers to the tank platform. Tighten
the nuts to compress the spring completely
and then loosen 3 turns.
4. Lift tank assembly and fasten tank support to
vehicle.

5.3 FUEL TANK VERIFICATION

Inspect fuel tank from under vehicle for leaks or
fuel traces. If a leak is detected, repair
immediately as per "Polyethylene Fuel Tank
Repair" in this section.
WARNING
Park vehicle safely, apply parking brake, stop
engine and set battery master switch(es) to
the OFF position before working on the
vehicle.
Before working under an air-suspended
vehicle, it is strongly recommended to support
the body at the recommended jacking points.
TORQUE: 55 lb-ft (75 Nm)
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