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OM-659 Page 7
3-6. Installing Welding Generator
WARNING
FALLING EQUIPMENT can cause
serious personal injury and equipment
damage.
• Use lifting eye to lift unit only, NOT running gear, gas
cylinders, trailer, or any other heavy options,
accessories, or devices.
• Use equipment of adequate capacity to lift the unit.
TILTING OF TRAILER can result in
personal injury or equipment damage.
• Install welding generator onto trailer with engine end
toward hitch end of trailer.
• Distribute weight so trailer tongue weight is
approximately 10% of the gross trailer weight.
• Use adequate blocks or lifting device to support
hitch end while pivoting trailer jack into position (see
Section 3-1).
• Use trailer jack to obtain desired height and to
support tongue weight while installing welding
generator.
rwarn1.1* 3/93
ST-800 016-A
Support trailer with jack. Apply
parking brake.
1 Crossmember
2 Mounting Holes
3 Welding Generator
Align proper holes in generator
base with holes in crossmembers
(see table).
Install generators not listed in table
so unit is centered over
crossmembers.
If mounting accessories or genera-
tor not listed in table, adjust genera-
tor position so tongue weight is 10
- 15% of gross trailer weight.
Secure generator with supplied 5/8
in grade 5 hardware. Tighten
mounting hardware to 150 ft lb (200
N
.
m).
Generator Mounting Dimensions
AB
All Big 20, Big 40, Big 50 Models 9-1/2 in (241 mm) 46-1/4 in (1175 mm)
Big 30A, Big Blue 251D 4-1/2 in (114 mm) 41-1/4 in (1048 mm)
Big Blue 400D 10-1/2 in (267 mm) 47-1/4 in (1200 mm)
Miller Air Pak, Big Blue 600D 13-3/4 in (349 mm) 50-1/2 in (1283 mm)
Trailblazer 44 & 55G* (Continental) 15 in (381 mm) 51-3/4 in (1315 mm)
All Other Trailblazer Models* 17 in (432 mm) 53-3/4 in (1365 mm)
*All Trailblazer models use the same base rails. Be sure to install the D and G models using the
correct mounting holes.
Model
Tools Needed:
1 in
15/16 in
1
23
A
B
Generator
End
Engine
End
36-3/4 in
(933 mm)
Use correct size SAE grade 5 locking-type
hardware to mount equipment on trailer.
Figure 3-7. Installing Welding Generator