:'.. Mani!owoc Engineering Co.
/
.
Before operation, machines parked in
highly humid climetes should be check-
ed to make certain that brake band
lining is not rusted to drum. If this
condition is found the brake band lin--
ing should be remcved and thoroughly
cleaned or replaced. The drum flange
should also be cleaned to remove all
signs of rust.
. Check to make certain brake lining is
not glazed. If glazing is present the
lining should be repaired or replaced.
. Extra brake bands should be stored
properly to avoid damage or the loss
of proper shape.
D. CHECK AIR COMPONENTS FOR PROPER OPER-
ATION (WHERE APPLICABLE)
.
Check airlines for abrasion, swelling
or kinking. Use soap suds to check
for leaks.
.
Check for slow or jerky piston rod
movement on cylinder. Check piston
cup for leakage and proper lubrication.
.
Check for poor brake release. Check
linkage and lubrication of air assist
cylinder.
4. Periodically dismantle Quick Release
Valves for cleaning and inspection.
.
Check modulating valve for proper
operation. Improper adjustment of
valve may cause brake to drag,
.
With brake completely applied, check
that full manifold air pressure is
present.
E.
TEST
BRAKES DALLY AND BEFORE MAJOR OR
CAPACITY LIFTS:
.
Always test brakes at starting with
several trial lifts, or slip brake
against clutch to assure dry friction
surfaces.
2.
Test llft to assure full brake power
during rain or before lifts requiring
close to rated line pull.
CAUTION:
FAILURE TO TEST BRAKES MAY RESULT IN HARM
TO PERSONNEL OR MACHINE.
F. CHECK FOR SYMPTOMS OF ,MALFUNCTION WHEN
OPERATING BRAKES :
.
Signs of; "pedal pumping", "kickback",
heating of linings, or eccentric drum
movement may be:
a. Out-of-round band.
b. Guides set wrong.
c. Drum or bearing wear.
d. Shaft or pillow block wear.
e. Distorted drum.
.
These symptoms should be investigated
at once to assure that the brake is in
proper operating condition.
WARNING :
BRAKES ARE ESSENTIAL TO THE SAFE OPERATION
OF THE ~CHINE. DO NOT ADD FOREIGN SUB-
STANCE TO A ~LFUNCTIONING BRAKE IN AN
ATTEMPT TO MAKE THE BRAKE OPERABLE. RE-
PLACE A BRAKE IF THERE IS ANY DOUBT AS TO
ITS SAFE OPERATING CONDITION,
FOLIO 932-2 2-2-78
395143
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