Multiquip operation manual DCA-25SSI TRAILER-SAFETY Guidelines, Explanation of Chart

DCA-25SSI — TRAILER-SAFETY GUIDELINES

CAUTION:		5. Frame Width - This measurement is from fender to
	ALWAYS make sure the trailer is in good		fender.
		6.	Jack Stand - Trailer support device with maximum
	operating condition. Check the tires for		pound requirement from the tongue of the trailer.
	proper inflation and wear. Also check the	7. Coupler - Type of hitch used on the trailer for towing.
	wheel lug nuts for proper tightness.	8. Tire Size - Indicates the diameter of the tire in inches
			(10,12,14, etc.), and the width in millimeters
Explanation of Chart:			(175,185,205, etc.). The tire diameter must match the
			diameter of the tire rim.
This section is intended to provide the user with trailer ser-
		9.	Tire Ply - The tire ply (layers) number is rated in letters;
vice and maintenance information. The service and mainte-
			2-ply,4-ply,6-ply, etc.
nance guidelines referenced in this section apply a wide range
		10. Wheel Hub - The wheel hub is connected to the trailer’s
of trailers. Remember periodic inspection of the trailer will
			axle.
ensure safe towing of the equipment and will prevent dam-
		11. Tire Rim - Tires mounted on a tire rim. The tire rim must
age to the equipment and personal injury.
			match the size of the tire.
It is the purpose of this section to cover the major mainte-		12. Lug Nuts - Used to secure the wheel to the wheel hub.
			Always use a torque wrench to tighten down the lug
nance components of the trailer. The following trailer com-
			nuts. See Table 4 and Figure 5 or lug nut tightening and
ponents will be discussed in this section:
			sequence.
„ Tires		13. Axle - Indicates the maximum weight the axle can sup-
			port in pounds, and the diameter of the axle expressed
„ Lug Nut Torquing
			in inches (see Table 3). Please note that some trailers
„ Suspension
			have a double axle. This will be shown as 2-6000 lbs.,
„ Electrical
			meaning two axles with a total weight capacity of 6000
Use the following definitions with reading Table 1.			pounds.
		14. Suspension - Protects the trailer chassis from shocks
1.	Fuel Cell - Provides an adequate amount of fuel for the
			transmitted through the wheels. Types of suspension
	equipment in use. Fuel cells must be empty when trans-
			used are leaf, Q-flex, and air ride.
	porting equipment.
		15. Electrical - Electrical connectors (looms) are provided
2. Braking System - System employed in stopping the
			with the trailer so the brake lights and turn signals can
	trailer. Typical braking systems are electric, surge, hy-
			be connected to the towing vehicle.
	draulic, hydraulic-surge and air.
		16. Application - Indicates which units can be employed
3.	GVWR- Gross Vehicle Weight Rating (GVWR), is the
			on a particular trailer.
	maximum number of pounds the trailer can carry, in-

cluding the fuel cell (empty).

4.Frame Length - This measurement is from the ball hitch to the rear bumper (reflector).

PAGE 11 — DCA-25SSI — PARTS AND OPERATION MANUAL—FINAL COPY(06/29/01)