W. W. PATTERSON COMPANY
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ABOUT THE MECHANICAL BRAKE
A PATTERSON Type 51 brake is a key part of your anchor winch. Because of this brake's unique construction, this
winch can be operated safely and surely, with or without power, with or without the electric brake.
POWER PULL-UP WITHOUT ELECTRIC BRAKE
(a) Tighten brake band
(b) Depress FORWARD pushbutton
(c) Depress STOP button when proper tension is attained
The winch is now fully loaded and held by the semi-automatic, mechanical Type 51 brake. In this case the electric
brake, if operable, can act as a "back-up". However, either brake is capable of holding normal loads, and can be used
individually or in unison.
POWER RELEASE:
(a) Loosen brake band (if manual brake has been applied)
(b) Pay out by reversing motor (if operable, electric brake releases automatically).
(c) Depress STOP button to shut down winch
MANUAL PULL-UP:
(a) Disengage 2-jaw clutch on No. 1 shaft
(b) Tighten brake band
(c) Engage pull-up ratchet and turn in proper direction to tighten wire rope
MANUAL RELEASE:
(a) Loosen brake band
(b) Pay out with pull-up ratchet
BASIC WINCH MAINTENANCE
WINCH MAINTENANCE is characteristically simple. All bearing surfaces are pre-lubricated at the factory. However,
grease fittings have been provided for lubrication of all friction areas. General purpose grease is sufficient.
BRAKE DETAILS:
(a) Brake band assembly bolted to winch frame
(b Ratchet gear keyed to shaft
(c) Brake drum (with internal spring-loaded pawls) mounted on the ratchet gear hubs
Depending upon proper lubrication and the severity of usage, it may become necessary at some time to replace the
pawls,
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