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Trailer maintenance, Lug nut torque requirements – Multiquip DCA400SSI User Manual

Page 45

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DCA400SSI GENERATOR • OPERATION AND PARTS MANUAL — REV. #2 (11/03/08) — PAGE 45

TRAILER MAINTENANCE

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:

Start all wheel lug nuts by hand.

1.

Torque all lug nuts in sequence (see Figure 62).

2.

DO

NOT torque the wheel lug nuts all the way down.
Tighten each lug nut in 3 separate passes as defi ned
by Table 18.

After fi rst road use, retorque all lug nuts in sequence.

3.

Check all wheel lug nuts periodically.

Tire Torque Requirements

Table 18.

Wheel Size

First Pass

FT-LBS

Second Pass

FT-LBS

Third Pass

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

Wheel Lug Nuts

Figure 62.

Tightening Sequence

NOTICE

NEVER use an pneumatic air gun to tighten wheel
lug nuts.