Product Manual

ManualsBrandsStrongArm Manuals3,000 - 4,900 Lb. Capacity WinchesDutton-Lainson 12 Volt DC Powered Electric Winch — 4,500-Lb. Capacity, Galvanized Aircraft Cable

SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION

Safety hook spreads 1. Point loading of hook 1. Replace hook

2. Load exceeds rated capacity of unit 2. Lighten load, reduce %

of incline or reduce load friction

Cable breaks 1. Cable damage due to miswrap. 1. Keep tension on cable at all times

2. Overloading 2. Reduce load

Cable miswrap Loose cable being wound onto drum Keep tension on cable at all times

and/or crushing

Load creeps when power is OFF 1. Brake/clutch out of adjustment 1. Adjust (see Maintenance).

2. Roller clutch, not engaging 2. Replace.

3. Overloading 3. Reduce load.

Winch motor runs but fails 1. Clutch is slipping. Check clutch lining for grease or oil. See

to wind cable 2. Gear train is damaged. “Maintenance” for clutch adjustment procedure.

Winch motor runs hot In operation too long Let motor cool for at least 20 minutes. (See Winch

Rating Section.)

Winch motor fails to run Electrical Check the following: power supply, wiring, control

switch, male/female connections and motor.

Cable will not pull out (free wheel) 1. Sticking cable 1. Avoid cable miswrap.

2. Sticking clutch 2.a. “Jog” power switch with clutch in free wheel

(No load only).

b. Disassemble, clean & readjust clutch, see

“Maintenance”.

Smokes Normal on initial power down use None

TROUBLESHOOTING CHART

2. With the cover removed as described above, inspect

the entire gear train and all drive shafts for any sig-

nificant wear or loose bearing fits. Grease all of the

gears on the inside of the winch base and apply a

drop of oil on all of the bearings in the base. Also,

very sparingly oil all of the bearings in the clutch

mechanism and place a drop of oil on the roller

clutch. Do not over lubricate these areas and do not

use grease in the roller clutch. The clutch mecha-

nism and the brake pads and brake disc must be

kept clean and oil free.

3. Check the operation of the roller clutch. Carefully

rotate the brake disc and observe the motor shaft.

When the disc is turned clockwise the motor shaft

should turn with it. When the disc is turned counter-

clockwise the motor shaft should not turn. Also,

check all nuts, bolts, retaining rings, etc., to be sure

that they are tight and secure.

4. Check the switch contact studs in the winch housing

to be sure that they are free from any corrosion or

excessive electrical pitting. Make sure that the hous-

ing shunt spring is properly in place and making

contact with both contact pins.

5. If the clutch has been slipping and requires adjust-

ment the following procedures should be used. The

clutch is adjustable in ten degree increments. With a

screwdriver and pliers, remove the end of the clutch

spring from the hole in the winch base. The spring

tension is quite high so be careful to maintain a firm

grip on the spring. The O-ring should be rotated so

that the cut out portions align with the lugs on the

spring keeper. (See FIG. 6)

The ring can then be expanded with a pencil or sim-

ilar object and the spring keeper can be lifted free

from the clutch nut. Rotate the keeper clockwise 10

degrees and install on the next serration in the

clutch nut. Reinstall O-ring and rotate slightly so that

the cut outs are not in line with the lugs on the

spring keeper and reinstall the clutch spring into the

hole in the base. Adjustment of the clutch more than

10 degrees to 20 degrees should normally not be

necessary. With only spring pressure (do not forcibly

tighten the clutch mechanism) the spring lug on the

spring keeper should come to rest at approximately

the 2:30 oʼclock position. (See FIG. 7)

6. Check the pulley block and hook assembly (Models

SA7000 and SA12000) to be sure that the pulley

rotates freely on the bronze pulley spacer.

Occasional greasing of these two items is recom-

mended.

FIG. 6

FIG. 7

O-Ring Illustration

Clutch Spring Illustration