DCA-45SSIU2 — OPERATION AND PARTS MANUAL (STD) — REV. #7 (06/13/07) — PAGE 49
DCA-45SSIU2 — 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.
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.
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.
Suspension
The
leaf suspension
springs and associated components
(Figure 66) 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 66. Major Suspension Components
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 &
tire skidding.
Avoid sudden stops when
possible and adjust brakes.
TABLE 16 TIRE WEAR TROUBLESHOOTING
s
t
n
e
m
e
r
i
u
q
e
R
e
u
q
r
o
T
n
o
i
s
n
e
p
s
u
S
.
7
1
e
l
b
a
T
m
e
t
I
)
.
s
b
L
-
.
t
F
(
e
u
q
r
o
T
T
L
O
B
-
U
"
8
/
3
5
3
-
X
A
M
0
3
-
N
I
M
T
L
O
B
-
U
"
6
1
/
7
0
6
-
X
A
M
5
4
-
N
I
M
T
L
O
B
-
U
"
2
/
1
0
6
-
X
A
M
5
4
-
N
I
M
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
0
5
-
X
A
M
0
3
-
N
I
M
Содержание Power WHISPERWATT DCA-45SSIU2
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