MRT Models
15
Anthony Lifgtates, Inc.
800-482-0003
www.anthonyliftgates.com
A
A
C
C
B
B
A
B
2
3
1
C
MRT-1001
Locations of load.
(A) Tension. (B) Compression. (C) Shear. (1) Floor Height.
(2) Top of Column (85 inches). (3) Reinforcing Strap, optional
(3/16 x 4 inch, quantity 2).
Tip: When the strength of the body is in doubt, add a
reinforcing strap (3) to the interior of each side of the
vehicle.
4.5 Welding Stainless Steel to Galvanized
If the installation requires welding galvanized steel parts
to stainless steel, special procedures must be followed
to ensure the safety of the welder and the integrity of the
welds.
4.5.1 Welding Safety
CAUTION
FUME HAZARD
Follow all OSHA and other
workplace safety standards when
welding. Welding galvanized steel creates zinc oxide
fumes. Always grind the coating off in the area to be
welded and provide adequate ventilation to avoid
breathing the fumes.
Always wear the proper breathing protection when
grinding or welding. Use ventilation or vacuum
systems to remove any contaminated air from the
work area.
Metal Fume Fever:
When zinc vapor mixes with the oxygen in the air,
it reacts instantly to become zinc oxide which is
non-toxic and non carcinogenic.
Zinc oxide that is inhaled is absorbed and
eliminated by the body without complications or
chronic effects.
Exposure to zinc oxide fumes causes a flu-like
illness called metal fume fever.
Symptoms include headache, fever, chills,
muscle aches, nausea, vomiting, weakness, and
tiredness.
There are no long-term health effects. Metal
fume fever typically begins about 4 hours after
exposure, and full recovery occurs within 48
hours.
CAUTION
FUME HAZARD
Follow all OSHA and other
workplace safety standards when
welding. Welding stainless steel creates hexavalent
chromium fumes which can irritate the nose, throat,
and lungs.
Repeated or prolonged exposure can damage the
mucous membranes of the nasal passages and
result in ulcers. In severe cases, exposure causes
perforation of the septum (the wall separating the
nasal passages).
Always wear the proper breathing protection when
grinding or welding. Use ventilation or vacuum
systems to remove any contaminated air from the
work area.
1. Welders should position themselves upwind of the air
flow which removes the fumes so that fumes and dust
do not collect inside the welding shield (helmet).
2. In addition to proper positioning, an effective method
to prevent inhaling zinc oxide fumes or hexavalent
chromium fumes is to wear a good fume rated
respirator.
4.5.2 Weld Wire
We recommend AWS E312T1 fl ux core wire such as
Midalloy Mastercor™ E312T1-1/4 or equivalent.
Do not use stainless steel weld wire.
4.5.3 Shielding Gas
100% CO
2
or 75/25 Argon/CO
2
mix can be used.
4.5.4 Welding Parameters
Welding of galvanized steel is the same as welding bare
steel of the same composition. It uses the same welding
processes, volts, amps, travel speed, etc.
Wire
Diameter Voltage
Amperage (Wire Feed Speed ipm)
Flat
Vertical & Overhead
.045”
24-28
130-200 (250-425)
120-160 (225-300)
.062 (1/16)
25-30
180-250 (150-250)
180-220 (150-200)
1. Use a soft disc grinder to remove the galvanized
coating in the area to be welded. This will improve
weld quality and reduce the welder’s exposure to zinc
oxide fumes.
2. No preheat of the dissimilar metals is needed.
3. When welding is complete, and after the area has
cooled, use a cold galvanizing spray to restore
corrosion resistance.
