page 40 — DCa25Usi 60 hz generaTor • operaTion anD parTs manUal — rev. #3 (07/19/11)
trailer Maintenance
Tires/Wheels/lUg nUTs
Tires and wheels are a very important and critical
components of the trailer. When specifying or replacing the
trailer wheels it is important the wheels, tires, and axle are
properly matched.
Tire Wear/inflation
Tire inflation pressure is the most important factor in tire
life. Pressure should be checked cold before operation
Do
noT bleed air from tires when they are hot!. Check inflation
pressure weekly during use to insure the maximum tire life
and tread wear.
Table 16 (Tire Wear Troubleshooting) will help pinpoint the
causes and solutions of tire wear problems.
CaUTion
alWaYs wear safety glasses when
removing or installing force fitted parts.
Failure to comply may result in serious
injury.
CaUTion
Do noT attempt to repair or modify a
wheel.
Do noT install in inner tube to
correct a leak through the rim. If the rim
is cracked, the air pressure in the inner
tube may cause pieces of the rim to explode (break off)
with great force and cause serious eye or bodily injury.
Table 16. Tire Wear Troubleshooting
Wear pattern
Cause
solution
Center Wear Over inflation.
Adjust pressure to particular
load per tire manufacturer.
Edge Wear
Under inflation.
Adjust pressure to particular
load per tire manufacturer.
Side Wear
Loss of camber
or overloading.
Make sure load does not
exceed axle rating.
Align wheels.
Toe Wear
Incorrect toe-in.
Align wheels.
Cupping
Out-of-balance.
Check bearing adjustment
and balance tires.
Flat Spots
Wheel lockup and
tire skidding.
Avoid sudden stops when
possible and adjust brakes.
suspension
The
leaf suspension springs and associated components
(Figure 57) should be visually inspected every 6,000 miles
for signs of excessive wear, elongation of bolt holes, and
loosening of fasteners. Replace all damaged parts
(suspension) immediately. Torqued suspension components
as detailed in Table 17.
Figure 57. Major Suspension Components
Table 17. suspension Torque requirements
item
Torque (Ft.-lbs.)
3/8" U-Bolt
Min-30 Max-35
7/16" U-Bolt
Min-45 Max-60
1/2" U-Bolt
Min-45 Max-60
Shackle Bolt
Spring Eye Bolt
Snug fit only. Parts must rotate freely.
Locking nuts or cotter pins are
provided to retain nut-bolt assembly.
Shoulder Type
Shackle Bolt
Min-30 Max-50
Summary of Contents for DCA5USI
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Page 50: ...page 50 DCA25Usi 60 hz Generator operation and parts manual rev 3 07 19 11 GENERATOR ASSY...
Page 52: ...page 52 DCA25Usi 60 hz Generator operation and parts manual rev 3 07 19 11 control box ASSY...
Page 54: ...page 54 DCA25Usi 60 hz Generator operation and parts manual rev 3 07 19 11 control box ASSY...
Page 62: ...page 62 DCA25Usi 60 hz Generator operation and parts manual rev 3 07 19 11 BATTERY ASSY...
Page 64: ...page 64 DCA25Usi 60 hz Generator operation and parts manual rev 3 07 19 11 Muffler Assy...
Page 66: ...page 66 DCA25Usi 60 hz Generator operation and parts manual rev 3 07 19 11 FUEL TANK ASSY...
Page 68: ...page 68 DCA25Usi 60 hz Generator operation and parts manual rev 3 07 19 11 ENCLOSURE ASSY...
Page 74: ...page 74 DCA25Usi 60 hz Generator operation and parts manual rev 3 07 19 11 RUBBER SEALS ASSY...
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