DCA-500SSK —TRAILER SAFETY GUIDELINES

Table 3. 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

SNUG FIT ONLY. PARTS MUST ROTATE FREELY.

LOCKING NUTS OR COTTER PINS ARE PROVIDED

SPRING EYE BOLT

TO RETAIN NUT-BOLT ASSEMBLY.

 

 

 

SHOULDER TYPE

MIN-30 MAX-50

SHACKLE BOLT

 

 

 

Lug Nut Torque Requirements

It is extremely important to apply and maintain proper wheel mounting torque on the trailer. Be sure to use only the fasteners matched to the cone angle of the wheel. Proper procedure for attachment of the wheels is as follows:

1.Start all wheel lug nuts by hand.

2.Torque all lug nuts in sequence. See Figure 5. DO NOT torque the wheel lug nuts all the way down. Tighten each lug nut in 3 separate passes as defined by Table 4.

3.After first road use, retorque all lug nuts in sequence. Check all wheel lug nuts periodically.

Table 4. Tire Torque Requirements

 

First Pass

Second

Third Pass

Wheel Size

Pass

FT-LBS

FT-LBS

 

FT-LBS

 

 

 

 

 

 

 

12"

20-25

35-40

50-65

 

 

 

 

13"

20-25

35-40

50-65

 

 

 

 

14"

20-25

50-60

90-120

 

 

 

 

15"

20-25

50-60

90-120

 

 

 

 

16"

20-25

50-60

90-120

 

 

 

 

Figure 5. Wheel Lug Nuts Tightening Sequence

NOTE

NEVER use an pneumatic air gun to

tighten wheel lug nuts.

DCA-500SSK — PARTS AND OPERATION MANUAL (STD)— REV. #1 (04/14/01) — PAGE 17

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Multiquip operation manual DCA-500SSK -TRAILER Safety Guidelines, Torque Ft.-Lbs, Lug Nut Torque Requirements