Multiquip ST-45HRM manual ST-45 Pump -TRAILER Safety Guidelines, Tires/Wheels/Lug Nuts, Suspension

ST-45 PUMP —TRAILER SAFETY GUIDELINES

Tires/Wheels/Lug Nuts	NOTE	ALWAYS wear safety glasses when
Tires and wheels are a very important and critical		removing or installing force fitted
components of the trailer. When specifying or replacing the		parts. Failure to comply may result in
trailer wheels it is important the wheels, tires, and axle are		serious injury.
properly matched.

CAUTION

DO NOT attempt to repair or modify a wheel. DO NOT install an inter-tube to correct a leak through the rim. If

the rim is cracked, the air pressure in the inter-tube may cause pieces of the rim to

explode (break-off) with great force and can cause serious eye or bodily injury.

TiresWear/Inflation

Tire inflation pressure is the most important factor in tire life. Pressure should be checked cold before operation. DO NOT bleed air from tires when they are hot. Check inflation pressure weekly during use to insure the maximum tire life and tread wear.

Table 5 (Tire Wear Troubleshooting) will help pinpoint the causes and solutions of tire wear problems.

Table 6. Suspension Torque Requirements

3/8" U-BOLT	MIN-30 MAX-35
7/16" U-BOLT	MIN-45 MAX-60
1/2" U-BOLT	MIN-45 MAX-50
SHACKLE BOLT	SNUG FIT ONLY. PARTS MUST ROTATE FREELY.
	LOCKING NUTS OR COTTER PINS ARE PROVIDED TO
SPRING EYE BOLT
	RETAIN NUT-BOLT ASSEMBLY
SHOULDER TYPE	MIN-30 MAX-50
SHACKLE BOLT

Suspension

The leaf suspension springs and associated components (Figure 37) should be visually inspected every 6,000 miles for signs of excessive wear, elongation of bolt holes, and loosening of fasteners. Replace all damaged parts (suspension) immediately. Torqed suspension components as detailed in Table 6.

Figure 37. Major Suspension Components

MAYCO ST-45HRM PUMP — OPERATION & PARTS MANUAL — REV. #4 (07/16/04) — PAGE 39