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Dca-85usj — trailer maintenance – Multiquip MQ POWER ULTRA-SILENTTM SERIES GENERATOR DCA-85USJ User Manual

Page 46

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PAGE 46 — DCA-85USJ — OPERATION AND PARTS MANUAL — REV. #0 (09/17/04)

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 15 (Tire Wear Troubleshooting) will help pinpoint the
causes and solutions of tire wear problems.

Suspension

The

leaf suspension springs and associated components

(Figure 58) 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 16.

Figure 58. Major Suspension Components

DCA-85USJ — TRAILER MAINTENANCE

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 15. 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

.

6

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

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.

CAUTION - REPAIRING TRAILER WHEELS

ALWAYS wear safety glasses when
removing or installing force fitted parts.
Failure to comply may result in serious
injury.

CAUTION - EYESIGHT HAZARD

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