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Trailer maintenance, Lug nut torque requirements – Multiquip DCA20SPXU2D User Manual

Page 40

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PAGE 40 — DCA20SPXU2D 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (03/25/11)

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:

1. Start all wheel lug nuts by hand.

2. Torque all lug nuts in sequence (Figure 40). DO NOT torque

the wheel lug nuts all the way down. Tighten each lug nut
in 3 separate passes as defi ned by Table 15.

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

Check all wheel lug nuts periodically.

Table 15. Tire Torque Requirements

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

Figure 40. Wheel Lug Nuts

Tightening Sequence

NOTICE

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