WARN 30XL Series - Manual (Page 8)

8
WARN Industrial Winches
Brake System
WARN Series XL winches are equipped with a 2-
part hydraulic braking system.
1 Dual counterbalance valves mounted to the
winch motor provide dynamic braking to
control the load when it is moving (i.e. power
out function).
2 A spring applied hydraulically released
(SAHR) disc brake prevents movement of the
winch drum and load when the winch is
stopped (i.e. control valve OFF position).
Both braking components are designed to
operate in either direction, which allows flexibility
in the rope winding direction.
Never attempt to adjust or remove the
Counterbalance Valves installed in the winch
hydraulic manifold.
In order for the brake system to function properly,
the winch must be connected to the proper
system Control Valve. The Control Valve must
be a 3-position, 4-way, spring return valve as
shown in the Hydraulic Schematic. The Control
Valve and hydraulic plumbing must allow both
motor ports (Port A and Port B) to drain freely to
the hydraulic system reservoir in the center
(OFF) position. Hydraulic system back pressure
(return line pressure) must not exceed 100 psi.
Use of the incorrect control valve or plumbing
may cause failure of the brake system.
Freespool Clutch
Operation
WARN Series XL winches are equipped with
either a manual or air operated freespool clutch
depending on the model. The freespool clutch
allows the operator to rapidly spool out the wire
rope. The freespool clutch disconnects the winch
drum from the winch brake.
MANUAL CLUTCH OPERATION
The manual freespool clutch is operated by
depressing the detent latch and turning the clutch
lever as indicated on the winch label.
AIR CLUTCH OPERATION
The air freespool clutch is operated by
application of air pressure to the fitting supplied
on the winch gearbox housing. The fitting is
designed to accept ¼” rigid plastic tubing.
1. To release the clutch (freespool operation):
Apply 50-120 psi air pressure to the air fitting.
2. To engage the clutch (winch operation):
Remove air pressure (0 psi) from the air
fitting.
WARNING
Failure to observe these instructions could
lead to property damage, severe injury, or
death.
· Always ensure the clutch is fully engaged
before operating the winch.
· Never release the clutch under load.
· Never operate the winch motor for a
prolonged period while the clutch is in
freespool mode.
· Never exceed 120 psi air pressure.
· Never use oil or other liquids to operate the
air clutch.