Hydraulic Jack; Structure; Welding - PREVOST H3-41 Maintenance Manual

SECTION 18A: H3 SERIES BODY
1. Engine air intake
2. Engine R.H. side access door
3. Main power compartment
4. Baggage compartment
5. Fuel filler door
6. A/C condenser compartment or baggage
compartment
7. Entrance door
8. Retractable back up camera (optional)
9. Engine compartment rear door
10. Rear-view mirrors
11. Reclining bumper compartment
12. Front electrical and service compartment
13. Driver's power window
14. Front Slide-out
15. Heating, ventilating and air conditioning
compartment (HVAC)
compartment
16. Rear Slide-out
17. Engine radiator door
18. Diesel Particulate Filter (DPF) compartment
access door
3. VEHICLE JACKING POINTS
For detailed instructions, refer to Maintenance
information MI18-18, available on the technical
publications USB flash drive and website.
3.1

HYDRAULIC JACK

To raise: turn release valve clockwise. Insert
handle in socket and raise vehicle by pumping.
To lower: remove handle and turn the release
valve slowly counterclockwise.
Always keep ram and extension screw retracted
when jack is not in use.
Service: Check oil level when jack fails to raise
to full height. Lower ram completely with release
valve open and jack in upright position, remove
filler plug and refill to level of filler hole with
hydraulic jack oil. Never use brake fluid.
10
PA1621 Maintenance Manual All Series
or baggage
|
Revised Sept 2019
DANGER
Jack is intended for lifting only. Do not get
under the vehicle or load for any reason unless
it is properly supported with safety stands and
securely blocked.
DANGER
Do not overload jack above rated capacity.
Prevent "side loading", make sure load is
centered on ram. Do not push or tilt load off
jack.
4. TOWING THE VEHICLE
For detailed instructions, refer to Maintenance
information MI18-18, available on the technical
publications USB flash drive and website.

5. STRUCTURE

The body of the H3-41, H3-45 and VIP vehicles
is an integral structure made of 14, 16 and 18
gauge welded and braced high tensile steel and
stainless steel members. The roof arches are
made with cold rolled, electrically welded (CREW)
steel tubes, 1 ½" x 2" x 14 gauge. The inside is
filled with urethane foam and the exterior is
primed. The front subframe is made of open
sections of high-strength steel alloy. These open
sections permit a better application of primer and
undercoating, and does not trap moisture. The
rear subframe is made of closed sections of high
tensile steel sealed at both ends.
5.1

WELDING

Since welding is a procedure that may be carried
out either as specific instructions from Prevost or
by an independent decision of the owner, the
following information
should be read before beginning any welding
procedure. The prohibitions and requirements
outlined below must be followed during welding
procedure:
1. Welding must be done only by a qualified
and experienced person.
2. Adequate ground contacts and shields must
be positioned as
components from damage due to heat,
contact by weld splatter, arcing, or other
pertaining to welding
required to protect