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PAGE 38 — MAYCO ST-45HRM PUMP — OPERATION & PARTS MANUAL — REV. #4 (07/16/04)
ST-45 PUMP — TRAILER SAFETY GUIDELINES
Trailer Safety Precautions
8. Wheel Hub – The wheel hub is connected to the trailer's axle.
9. Tire Rim – Tires are mounted on a tire rim. The tire rim must
match the size of the tire.
10. Lug Nuts – Used to secure the wheel to the wheel hub.
Always use a torque wrench to tighten down the lug nuts. See
Table 7and Figure 38 for lug nut tightening and sequence.
11. Axle – This trailer employes a torsion bar type suspension,
which can support 3,500 lbs.
12. Electrical – Electrical connectors (looms) are provided with
the trailer so that brake lights and turn signal lights can be
connected to the towing vehicle. See Figure 43 for proper
wiring connections.
This section is intended to provide the user with trailer service
and maintenance information. Remember periodic inspection of
the trailer will ensure safe towing of the equipment and will
prevent damage to the equipment and personal injury.
It is the purpose of this section to cover the major maintenance
components of the trailer. The following trailer components will
be discussed in this section:
■
Tires
■
Lug Nut Torquing
■
Suspension
■
Electrical
The following list defines the major trailer components:
1. Frame Length – This measurement is from the ball hitch to
the rear bumper (reflector).
3. Frame Width – This measurement is from fender to fender.
4. Jack Stand – Trailer support device with maximum pound
requirement from the tongue of the trailer.
5. Coupler – Type of hitch used on the trailer for towing. This unit
employes a 2" ball.
6. Tires Size – Indicates the diameter of the tire in inches (10,
12, 13, 14, etc. ), and the width in millimeters (175, 185, 205
etc.). The tire diameter must match the diameter of the tire rim.
This unit employes 7.35" X 14" tires.
7. Tires Ply – The tire ply (layers) number is rated in letters; 2-
ply, 4-ply, 6-ply, 8-ply, 10-ply etc. This unit employes 4-ply
tires.
ALWAYS make sure that the trailer is in good
operating condition. Check the tires for
proper inflation and wear. Also check the
wheel lug nuts for proper tightness.
CAUTION