Multiquip ST-45HRM manual ST-45 Pump -TRAILER Safety Guidelines, Lug Nut Torque Requirements

ST-45 PUMP —TRAILER SAFETY GUIDELINES

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 38. DO NOT torquethewheellugnutsallthewaydown.Tighteneachlug nut in 3 separate passes as defined by Table 7.

Table 7. Lug Nut Torque Requirements

Wheel Size	First Pass	Second Pass	Third 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

3.Afterfirstroaduse,retorquealllugnutsinsequence.Check all wheel lug nuts periodically.

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

Figure 38. Wheel Lug Nuts Tightening Sequence

PAGE 40 — MAYCO ST-45HRM PUMP — OPERATION & PARTS MANUAL — REV. #4 (07/16/04)