Lincoln 83668 Manuale utente
Section
Page
- C8
MAR 98
Copyright 1998
Printed in U.S.A.
One Lincoln Way
St. Louis, Missouri 63120-1578
(314) 679-4200
FORM 402817
- 127I
Model No. 83668
AIR OPERATED GREASE PUMP
Series "F"
TO FILL RESERVOIR
Use Manual Filler Pump 81834 to fill reservoir
through the filler fitting in the pump body. Attach
coupler on delivery hose to filler fitting. Stroke
filler pump handle until lubricant weepage is noted
at air vent hole in the reservoir (lower portion of
follower must rise beyond air vent hole to expel
entrapped air from lubricant). NOTE: When filling
the reservoir, caution should be used as extreme
pressure can cause damage to reservoir and
follower assembly.
TO PRIME SYSTEM
SUPPLY LINES: After pump reservoir has been
filled with recommended lubricant, remove all
plugs in dead ends of the injector manifolds
and supply lines. Operate pump until lubricant
flows from any plug opening. Close opening
with plug. Continue operating pump until
lubricant flows from another plug opening.
Repeat this procedure until all supply lines are
primed.
FEEDER LINES: Fill each feed line with lubricant
before connecting tines to outlet of injectors
and bearings. This will prevent having to cycle
each injector for every inch of feeder line
between injector and bearing.
INJECTORS: Check each individual injector for
proper operation.
The total quantity of lubricant needed for the lubrication
cycle of the system must not exceed the lubricant
discharged per pump stroke.
RATIO
OUTPUT
PER
STROKE
(CU. IN.)
RESERVOIR
CAPACITY AIR
INLET LUBRICANT
OUTLET
LUBRICANT OPERATING PRESSURE (PSI)
TYPE OF
SYSTEM MINIUM MAXIMUM RECOMMENDED
20:1 * .450 4 -1/4 pints
(123 cu. in.) 1/4" NPT
Female 1/4" NPT
Female SL-32
SL-33
1,200
with
60 PSIG Air
3,500
with
175 PSIG Air
1,500
with
75 PSIG Air
*Based on lubricants that are free from entrapped air. Lubricants that are aerated will reduce output of pump. The
83668 Pump is used as the pumping unit for a Centralized Lubrication System having a single circuit of SL-32 or
SL-33 Injectors. It is an air-operated, single-stroke, spring-return pump that discharges .450 cu. in. into the
circuit for each pump cycle.
PAGE 2 FORM 402817
IMPORTANT:
Pump must be installed in a vertical position.
OPERATION OF THE PUMP
Lubricant in the 247210 Translucent Reservoir
flows into the cavity in the 247484 Bushing and
Plunger Assembly.
Compressed air entering the bottom of the
247476 Air Cylinder (1/4" N.P.T. female) moves
the 247478 Piston upward. As the piston
moves upward, the plunger is also moved
upward into the bushing. As the plunger moves
upward, it moves the charge of lubricant from
the bushing cavity through the 84175 Outlet
Check to the outlet of the pump.
When the air pressure to the 247476 Air Cylinder
is relieved, the 247481 Piston Spring moves the
piston and plunger downward. In its extreme
down position, the plunger has retracted below
the bushing port, permitting lubricant to flow into
the bushing cavity.
©Indicates Change
WHAT TO DO IF:
Pump loses prime. - Check lubricant supply.
System fails to cycle and calculated system planning has been followed. -- Lubricant may be leaking by the 66250
Ball Check or the 34445 Packing in the 84175 Check and Vent Assembly. Remove these parts and examine for
presence of foreign particles. Clean, or replace parts if worn or damaged.
Pump fails to operate. - Check air supply. Failure of Injectors to cycle can be caused by a leak in the supply line.
FORM 402817 PAGE 3
© Indicates Change
NOTE:
In reassembling the 84175 Check and Extension
Assembly, the vent pressure must be reset. Vent
pressure can be varied by the Adjusting Screw,
14288. The recommended pressure setting is 25
P.S.I.G. minimum to 75 P.S.I.G. maximum. An
improper setting will affect the pump efficiency.
Assemble 14288 with non-hardening Loctite or stake
threads after adjusting vent pressure.
LOW LEVEL CUT-OFF KIT NO. 83671 MAY BE USED
AS AN ALARM OR SIGNAL DEVICE WHEN
LUBRICANT DROPS BELOW AN ACCEPTABLE LEVEL.
SERVICE PARTS
*These components available in 247623 Repair Kit
PART QTY. DESCRIPTION
NO.
14288 1 Ball Stop
14290 1 Check Body
14305 1 Bushing
*31020 1 Gasket
*31086 1 Gasket
*34174 1 O-ring (Nitrile)
*34211 1 O-ring (Nitrile)
*34274 1 Gasket
*34368 1 O-ring (Nitrile)
*34431 1 O-ring (Nitrile)
*34445 1 Gasket
*34454 1 Follower Packing
45936 1 Cover Cap
48382 1 Washer
48467 2 Washer
51082 1 Nut
55270 1 Follower Spring
*56106 1 Spring
62493 1 Extension Tube
*66250 1 Ball
66725 1 Retaining Ring
68797 1 Plug Button
69034 1 Retaining Ring
*69295 1 Filter
84175 1 Check Assembly
92441 1 Filter Fitting
92684 1 Outlet Bushing Extension
Assembly
©246174 1 Cylinder End
247210 1 Reservoir (Acrylic)
247476 1 Air Cylinder
247477 6 Machine Screw
247478 1 Piston
247481 1 Spring
*247483 1 U-Cup (Nitrile)
247484 1 Bushing and Plunger
Assembly
©*252497 1 O-ring (Nitrile)
PAGE 4 FORM 402817
RETAIN THIS INFORMATION FOR FUTURE REFERENCE
When ordering replacement parts, list: Part Number, Description, Model Number and Series Letter.
LINCOLN provides a Distributor Network that stocks equipment and replacement parts.
TYPES OF INSTALLATIONS
Frequency of lubrication cycle can be controlled mechanically, electrically or manually.
ELECTRICAL CONTROL
Electrical time switch opens three-
way solenoid salve, permitting air
to flow to pump forcing air piston
forward and lubricant through
supply line to injectors. When valve
closes, air exhausts back through
valve, and spring in pump returns
air piston, completing lubrication
cycle. Frequency of cycle can be
set as desired.
MANUAL CONTROL
Opening three-way valve for a
minimum of 10 seconds permits air
to flow to pump forcing air piston
forward and lubricant through supply
line to injectors. When valve is closed,
air exhausts back through valve, and
spring in pump returns air piston,
completing lubrication cycle.
MECHANICAL CONTROL
When using mechanical motion of
machine to control lubrication
frequency, three-way valve is
engaged by cam, permitting air to
pass through valve to pump, forcing
air piston forward and lubricant
through supply line to injectors.
When the valve is disengaged, air
exhausts back through valve, and
spring in pump returns air piston,
completing lubrication cycle. Cam
dwell on three-way valve must be
arranged for a minimum of 10
seconds.
When mechanical motion of machine
is too rapid to be used as a source of
control for frequency of lubrication
cycle, a cycle timer with adjustable
settings may be used. See separate
instructions for Cycle Timer 82703.
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