MCi Crusader II 1989 Maintenance Manual page 80

Date
1-1-89
Page-____
3 _- 9 _ _
MC-9 MAINTENANCE MANUAL
Figure 3-6. Front Jacking Points.
BODY REPAIRS
WELDING
NOTE: Refer to the welding caution in the
introductory pages of this manual before
starting any welding operation.
The entire frame structure is a welded design. Self-
contained suspension bogies for the front and _rear are jig
CKING PA
Figure 3-7. Rear Jacking Points.
welded to ensure proper alignment of the main radius roa
attaching points.
All the lower parts of the framework, from the main floor to
the skirt rail, are manufactured from stainless steel. This pre•
vents rust and corrosion from occurring on the frame members
due to moisture and road salts. The repair of these sections can
be carried out in the conventional manner.
The following welding rods should be used when making
welding repairs to the body structure:
APPLICATION DIAM. A.W.S.
SS
to
SS or Corten, Light 3/32" (2.4 mm) No.308
Gauge
SS to SS or Corten. Heavy 1 /8"-5/32" No. 308
Gauge (3.2-4.0 mm)
Corten to Corten
3/32"-1/8" No.6011
Light Gauge (2.4-3.2 mm)
Corten to Corten 3/32"-5/32" No. 7018
Heavy Gauge (2.4-4.0 mm)
Air Beam Reservoirs 5/32" (4.0 mm) No. 7018
Heavy Plate Sections
RIVETING
There are a number of types of rivets used in the manufac-
ture of the coach and a general classification of these types
follows:
6053-TG - used on side paneling, where strength is
required and the rivet can be reached for bucking.
1200 F - used on baggage doors - strength not too critical
and can be reached for squeeztng.
AD-43-BS - U.S.M.C. "Pop" rivets on all other inaccessi-
ble points or accessible places where ease of installation is
required.
Cherry and Cherry Monobolt - used where strength is
required and the rivet is not readily reached for bucking.
Hand-type guns for pulling up cherry rivets and lazy tongs
for lmex and "Pop" are available for repair work. Contact Ser-
vice Parts department for information.
Repairing and replacemE\nt of body parts will require remo-
val of rivets. Aluminum rivets can be removed by cutting off the
rivet head with a sharp chisel, or by drilling out the rivet with a
drill sli9htly smaller than the body of the rivet On a rivet with a
large head, first cut a groove across the center of the rivet head
with a cape chisel, then cut off with a flat chisel. When drilling
out pop rivets, always push out the stem first.