Multiquip operation manual DCA-400SSK TRAILER-SAFETY Guidelines, Explanation of Chart

DCA-400SSK — TRAILER-SAFETY GUIDELINES

CAUTION:	4. Frame Length - This measurement is from the ball
ALWAYS make sure the trailer is in good		hitch to the rear bumper (reflector).
	5. Frame Width - This measurement is from fender to
operating condition. Check the tires for		fender.
proper inflation and wear. Also check the	6. Jack Stand - Trailer support device with maximum
wheel lug nuts for proper tightness.		pound requirement from the tongue of the trailer.
	7. Coupler - Type of hitch used on the trailer for towing.
Explanation of Chart:		Usually consists of chains and ‘ball’ or ‘eye’.
This section is intended to provide the user with trailer ser-	8. Tire Size - Indicates the diameter of the tire in inches
		(10,12,14, etc.), and the width in millimeters
vice and maintenance information. The service and mainte-
nance guidelines referenced in this section apply a wide range		(175,185,205, etc.). The tire diameter must match the
		diameter of the tire rim.
of trailers. Remember periodic inspection of the trailer will
ensure safe towing of the equipment and will prevent dam-	9. Tire Ply - The tire ply (layers) number is rated in
		letters; 2-ply,4-ply,6-ply, etc.
age to the equipment and personal injury.
	10. Wheel Hub - The wheel hub is connected to the
It is the purpose of this section to cover the major mainte-		trailer’s axle.
nance components of the trailer. The following trailer com-	11. Tire Rim - Tires mounted on a tire rim. The tire rim must
ponents will be discussed in this section:		match the size of the tire.
	12. Lug Nuts - Used to secure the wheel to the wheel hub.
„ Brakes		Always use a torque wrench to tighten down the lug
„ Tires		nuts. See Table 4 and Figure 5 or lug nut tightening and
„ Lug Nut Torquing		sequence.
„ Suspension	13. Axle - Indicates the maximum weight the axle can sup-
„ Electrical		port in pounds, and the diameter of the axle expressed
„ Brake Troubleshooting Tables		in inches (see Table 3). Please not that some trailers
		have a double axle. This will be shown as 2-6000 lbs.,
Use the following definitions with reading Table 1.		meaning two axles with a total weight capacity of 6000
1. Fuel Cell - Provides an adequate amount of fuel for		pounds.
the equipment in use. Fuel cells must be empty when	14. Suspension - Protects the trailer chassis from shocks
transporting equipment.		transmitted through the wheels. Types of suspension
2. Braking System - System employed in stopping the		used are leaf, Q-flex, and air ride.
trailer. Typical braking systems are electric, surge, hy-	15.	Electrical - Electrical connectors (looms) are provided
draulic, hydraulic-surge and air.		with the trailer so the brake lights and turn signals can
3. GVWR- Gross Vehicle Weight Rating (GVWR), is the		be connected to the towing vehicle.
maximum number of pounds the trailer can carry, in-	16.	Application - Indicates which units can be employed
cluding the fuel cell (empty).		on a particular trailer.

DCA-400SSK — PARTS AND OPERATION MANUAL (STD)— REV. #3 (09/17/01) — PAGE 11