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Trailer maintenance, Lug nut torque requirements – Multiquip DCA125SSIU User Manual

Page 44

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PAGE 44 — DCA125SSIU 50 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #0 (12/22/08)

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 60).

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 16.

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

3.

Check all wheel lug nuts periodically.

Tire Torque Requirements

Table 16.

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 60.

Tightening Sequence

NOTICE

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