General Machine Products 70524 Adams CD3 Continuous Duty Winch - Manual (Page 9)

AK 7/18/2012 ver 5
are magnetically activated and while they work on the same principle as Hall effect sensors, they are exceedingly
sensitive. The sensors are 100% solid-state devices with no moving parts to wear, break, bounce or stick and they
are fully encapsulated in plastic resin.
The sensors must be wired as per drawing no. 25777. Since the sensors detect the magnetic piston in the air cylin-
der and not the switch used to activate the directional control valve, even manual actuation of the clutch is detected
by the sensors.
Warning - Reverse wiring will destroy the solid-state electronic components in the sensors.
3.04 CALIPER TYPE DRAG BRAKE - For reasons of safety and convenience, the drag brake is equipped
with a remote actuator. The remote actuator, reservoir and flexible hose section are shipped loose with other winch
mounting hardware in the parts box. These components are to be installed by the dealer.
3.041 GENERAL
GUIDELINES - Hydraulic brake components are precision built mechanisms and must be
treated as such. Certain procedures must be followed at the time of installation to ensure their optimum perform-
ance, and a few of the more common procedures are listed below:
To properly locate the brake component or brake line, the installer must consider the following:
♦ Make it convenient for the operator.
♦ Use the shortest and most protected route.
♦ Avoid mounting near the engine, exhaust lines, muffler or anywhere that heat may be generated. NOTE:
Excessive heat transferred to the brake fluid may result in damage to the lines or seals.
♦ Mount the reservoir higher than the brake component to facilitate bleeding.
To properly mount components and brake lines to withstand the most severe vibration and service conditions, the
installer must consider the following:
♦ Use the right size bolt for the hole and secure with a steel lock washer.
♦ Secure tubing to frame with proper size tube clamps to avoid possible fractures or fittings loosening and
leaking.
♦ Use good, factory-flared lengths of steel tubing. Hand-made flares, when used, should be double flared.
Any flash or loose particles must be removed.
♦ Use flexible brake line between frame and body.
♦ If tubing passes through frame or firewall, a grommet or some other means should be used to protect line
from chafing.
♦ Use tubing rated for 1500-psi minimum for the line between the actuator and the caliper brake assembly.
The proper removal of air from the brake system is very important. A common problem occurs when air remains
trapped in the system causing a "spongy" actuator and inadequate braking. The bleeder screw in the brake assem-
bly must be toward the top. The air in the system will always seek the highest level.
To properly bleed system:
1. Be certain that fittings are tight to avoid leaking.
2. Depress the actuator and open up the bleeder screw to allow the air to escape.
3. Re-tighten the bleeder screws and allow the actuator to return.
4. Repeat the cycle until actuator is firm.
5. Make several static brake applications and then repeat the cycle once more.
The closed circuit hydraulic system must not leak. Even the smallest leak could defeat what would otherwise be a
well operating and effective brake system. It could eventually deplete the reservoir and reduce the braking pres-
sure.
To avoid leaks:
♦ Check connections during the bleeding and static brake processes to be sure they are tight.
♦ Always re-install new hoses, lines and fittings if they look the least bit questionable.
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