Multiquip dca150usj2 ユーザーズマニュアル

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 inflation pressure is the most important factor in tire 

life. Pressure should be checked cold before operation 

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.

alWaYS  wear  safety  glasses  when 

removing  or  installing  force  fitted  parts. 

Failure  to  comply  may  result  in  serious 

injury.

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.

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.

The

 leaf suspension springs and associated components 

(Figure 61) 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.

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