Lincoln A Series Owner's manual

Page
Section - A5
- 71
Form 403236
July 2002
One Lincoln Way
St. Louis, MO 63120-1578
Phone [phone]
Fax [phone]
© Copyright 2002
Printed in USA
Web site:
www.lincolnindustrial.com
MODEL 248465
AIR OPERATED CHASSIS PUMP
SERIES A
OWNER/OPERATOR MANUAL
SPECIFICATIONS
Airmotor effective dia. in. 2.5
Air inlet 1/  NPTF
Material outlet 1/  NPTF
Ratio 50:1
Delivery output, cubic inches per minute 80
Delivery in cubic inches per cycle .35
Minimum air pressure 30 p.s.i.
Maximum air pressure 150 p.s.i.
Max output pressure 7500 p.s.i.
Minimum inlet grease pressure 80 p.s.i.
Noise level @ 120 psig < 85 dBA
DESCRIPTION
Model 2 8 65 is an air operated
chassis pump designed to pump low
and medium viscosity materials
(grease) from drums and pails.
OWNER/OPERATOR
RESPONSIBILITY
It is the owners/operators responsibili-
ty to properly use and maintain this
equipment.
The instructions and warnings con-
tained in this manual shall be read
and understood by the owner/operator
prior to operating this equipment.
If an owner/operator does not under-
stand English, the contents of this
manual shall be explained in the
owners! operators native language to
assure the owner/operator compre-
hends.
It is the owners/operators responsibili-
ty to maintain the legibility of all warn-
ing and instruction labels.
The owner/operator shall retain this
manual for future reference to impor-
tant warnings, operating and mainte-
nance instructions.
SAFETY INFORMATION
Read and understand all warnings,
cautions and instruction before operat-
ing this equipment. Extreme caution
should be used when operating this
equipment as personal injury and! or
property damage can result from
equipment misuse. Adequate personal
protection is recommended to prevent
splashing of material on the skin or in
the eyes. ALWAYS disconnect air
coupler from pump when the pump is
not being used.

Page Number - 2 Form 403236
FAILURE T HEED THE F LL WING WARNINGS INCLUDING MISUSE, VER PRESSURIZING, M DIFYING PARTS,
USING INC MPATIBLE CHEMICALS AND FLUIDS, R USING W RN R DAMAGED PARTS, MAY RESULT IN EQUIPMENT
DAMAGE AND/ R SERI US PERS NAL INJURY, FIRE, EXPL SI N, R PR PERTY DAMAGE.
·Do not exceed the stated maximum working pressure of the pump, or of the lowest rated component in your system.
·Do not alter or modify any part of this equipment.
·Do not operate this equipment with combustible gas.
·Do not attempt to repair or disassemble the equipment while the system is pressurized.
·Make sure all grease connections are securely tightened before using this equipment.
·Always read and follow the grease manufacturers recommendations regarding grease compatibility, and the use of
protective clothing and equipment.
·Check all equipment regularly and repair or replace worn or damaged parts immediately.
·Never point the dispensing valve at any part of the body or at another person.
·Never try to stop or deflect material from dispensing valve or leading connection or component with your hand or body.
·Always check equipment for proper operation before each use, making sure safety devices are in place and operating
properly.
·Always follow the pressure relief procedure after shutting off the pump, when checking or servicing any part of the system,
and when installing, cleaning or changing any part of the system.
This pump can develop 7500 PSI working pressure at
150 PSI maximum incoming air pressure. Be sure that all
system equipment and accessories are rated to with-
stand the maximum working pressure of this pump.
DO NOT exceed the maximum working pressure of the
lowest rated component in the system.
IMPORTANT: Accessory item whip hoses for dispensing
valve are rated 500 PSI. DO NOT exceed 90 PSI air
pressure to pump when using whip hoses.
TYPICAL SYSTEM HOOKUP
Obtain an air line filter/regulator/lubricator to use with the
inlet air supply and the correct sized air and grease lines
hoses with any required reducers, connectors and accesso-
ries.
Clean/flush the supply lines, hoses, reducers, connectors
and accessories with mineral spirits or oil based solvent to
purge any contaminants such as dirt, moisture, or metal
shavings that could damage the pump or system
components. Blow dry with air.
The pump was tested in lightweight oil which was left in
to protect the pump from corrosion. Flushing the pump
before connecting it to the system might be desired to
prevent possible contamination of the grease you are
pumping.
To reduce the risk of injury from splashing or static
sparking when flushing the pump with solvents, always
hold a metal part of the dispensing valve firmly to the
side of a grounded metal pail and operate pump at
lowest possible fluid pressure.
Assemble the cleaned pump and supply line together with
any required accessory.
Mount the assembled pump to the drum or pail.
Connect the material output line/hose to the pump.
Connect the air regulator to the pump.
Make sure all connections are securely tightened.
Clean/flush the pump with mineral spirits or oil based
solvents if necessary.

Page Number - 3
Form 403236
PRESSURE RELIEF PROCEDURE
Always perform this procedure when the pump is shut off
and before checking, servicing, installing, cleaning or
repairing any part of this system.
Perform the following procedure:
A. Disconnect the air supply to the pump.
B. Disconnect the pump from the pressurized tank.
C. Point the dispensing valve away from yourself and
others.
D. Open the dispensing valve into an appropriate container
until the pressure is relieved.
If the above procedure does not relieve the pressure, the
dispensing valve or hose may be restricted. To relieve the
pressure, very slowly loosen the hose end coupling. Then
loosen completely and clear the dispensing valve and/or
hose.
OPERATION
INSPECTI N BEF RE USING PUMP
Prior to operation or maintenance a visual inspection shall
be made. Check pump system for leaks, worn or missing
parts.
Any pump that appears to be damaged in any way, is badly
worn or operates abnormally shall be removed from use
until repairs are made. Contact a factory authorized service
center for repairs.
If overpressurizing of the equipment is believed to have
occurred, contact a factory authorized service center for
inspection of the pump.
Annual inspection by a factory authorized service center is
recommended.
To prevent personal injury, perform PRESSURE RELIEF
PROCEDURE before and after operating the pump.
To start pump, turn on the main air supply. Slowly open the
air regulator. Regulate air pressure from 20- 0 psig and
throttle to prime pump. Open the dispensing valve to allow
air to be purged from the system. Allow pump to cycle until
grease without air pockets flows from dispensing valve,
then close dispensing valve.
After pump is primed, adjust air pressure to achieve a
smooth flow of grease from the dispensing valve. Do not
allow pump to operate when out of material. Pump will
accelerate quickly and run too fast, resulting in costly
damage to the pump.
If the pump accelerates quickly or is running too fast, stop it
immediately. Check the grease supply and refill it if
necessary. Prime the pump to remove all air from the
system, or flush the pump and relieve pressure.
In a circulating system, the pump runs continuously and
slows down or speeds up as supply demands, until the air
supply is shut off.
In a direct supply system, with adequate air pressure
supplied to the motor, the pump starts when the gun or
dispensing valve is opened and stalls against pressure
when it is closed.
Use the air regulator to control pump speed and grease
pressure. Always use the lowest pressure required to
achieve the desired results. Higher pressures will cause
pump packings to wear prematurely.
MAINTENANCE
To prevent personal injury, perform PRESSURE RELIEF
PROCEDURE before and after operating the pump and
before any maintenance.
LUBRICATION
An air line filter/regulator/lubricator is recommended for use
with your Lincoln pump to remove harmful dirt and moisture
from your compressor air supply, and to provide automatic air
motor lubrication.
If an air line lubricator is not used, the following procedure
should be performed daily:
A. Disconnect air coupler from air fitting.
B. Fill air coupler with NO. 10 SAE motor oil and reconnect to
air fitting.
C. Operate pump to distribute lubricant.
To reduce the risk of injury from splashing or static
sparking when flushing the pump with solvents, always
hold a metal part of the dispensing valve firmly to the
side of a grounded metal pail and operate pump at
lowest possible fluid pressure.
MATERIAL RESTRICTION PREVENTION
Flush the system as required with a compatible solvent to
prevent material buildup when pumping material that dries or
hardens.
CORROSION PREVENTION
To prevent water or air corrosion, never leave the pump filled
with water or air. Flush the pump first with a compatible sol-
vent and then again with mineral spirits or oil based solvent.

Page Number - 4 Form 403236
DISASSEMBLY
To prevent personal injury, perform
PRESSURE RELIEF PROCEDURE
before and after operating the pump
and before performing any disas-
sembly or assembly.
NOTE
If complete disassembly is required,
order the repair kit and replace ALL
gaskets, 0-rings and packings.
A. Remove valve cap (11 70), trip rod
pin (11 72) and collar (11 71).
Unscrew trip sleeve (119 7) from
trip rod (90691).
B. Unscrew four tie rod nuts (51009)
from tie rods (1029 ) and lift air
valve casting (237563) off of air
cylinder(610 1).
C. Remove packing nut (1190 ) and
packing cap (11905) from air valve
casting.
D. Remove four valve cover screws
(236868) and cover (236286).
E. Remove four toggle plate screws
(236869), toggle plate (91331), trip
shoe (11 75) and sleeve (119 7).
F. Remove four valve seat bolts
(236870), springs (55138), valve
guide plate ( 5605) and valve slide
seat (83063) and gasket.
G. Unscrew trip rod packing nut
(2 5 25) from air valve casting and
remove all packing parts.
H. Remove adapter (2 8 62) from
bushing extension (61273).
I. Extend plunger rod (11723) out
of bushing extension (61373).
Place wrenches on plunger nut
(2 8 6 ), place an awl or other
small tool through the opening in
check (11726), and remove priming
check parts, plunger rod (11723),
and extension tube.

Page Number - 5
Form 403236
J. Unscrew pump tube from outlet
body ( 0537).
K. Unscrew plunger and bushing
assembly (9055 ) from coupling
stud (12209) by placing wrench on
the plunger and adapter.
L. Unscrew coupling adapter
(12210) from connector rod (113 9)
by placing wrench on piston rod
and connector rod. This will allow
removal of trip rod (90691). Remove
piston rod (113 0), piston packing
and washers.
M. Unscrew gland packing nut (12333)
from outlet body and remove all
gland parts.
N. To reassemble, reverse procedure.
Tighten fasteners per torque
specification supplied.
ASSEMBLY
To assemble, perform DISASSEMBLY
procedures in reverse. Tighten fasten-
ers per stated torque specifications.
IMPORTANT: To prevent damage to air
piston packing and pump gland
packing, and to help increase packing
life, lubricate air cylinder and air piston
rod before assembly. Thread piston
rod through gland packing when
assembling pump.
Before tightening four valve seat
screws (236870), align valve slide and
seat (83063), slide valve gasket
(38162) and air valve casting (237563)
by placing a rod through the center
hole. Start all fasteners by hand to
avoid stripping threads when reas-
sembling.
REPAIR
Repair is limited to replacement of
listed service parts. Special proce-
dures and tools are required. Contact
Lincoln Customer Service, One Lincoln
Way, St. Louis, MO 63120-1578, (31 )
679- 200 for your nearest authorized
service center.
When ordering replacement parts, list:
part number, description, model
number and series letter.

Page Number - 6 Form 403236
TROUBLESHOOTING
If the following procedures do not cor-
rect the problem, contact a factory autho-
rized service center. When submitting
equipment to be repaired, be sure to
state the nature of the problem and indi-
cate if a repair cost estimate is required.
PROBLEMS
AIRM T R D ES N T PERATE.
·Check air supply to pump.
·Check for broken trip rod.
·Broken toggle or foreign object
lodged in priming tube. Check for
rust, worn or scored parts.
AIR SEEPAGE FR M AIR EXHAUST
WHILE PUMP IS N T PERATING
·Check valve slide and seat (83603)
and gasket (38162). Check trip rod
packing (236835) and gasket
(33039) for cut or damaged
packing.
L SS F PRESSURE, V LUME
RC NTINU US PERATI N F
PUMP WHEN N T IN N RMAL USE.
· Remove and clean lower inlet
checks. Check for foreign material.
· Inspect sealing surfaces between
upper and lower inlet checks.
Replace if rough or pitted.
· Replace shovel rod if rough or
pitted. Replace shovel rod packing
(35073).
· Inspect lubricant supply line for
leaks or breaks.
LUBRICANT LEAKING FR M WEEP
H LE IN UTLET CASTING.
Replace 0-ring (3 572) and U-cup
(38165). Make sure gland nut (12333) is
tight.
EXCESSIVE AMOUNT OF AIR IN LU-
BRICANT OR EXCESSIVE AMOUNT OF
LUBRICANT COMING FROM AIR EX-
HAUST.
NOTE
Some lubricant exhausts with air
normally.
·Replace gland packing (3 180),
gland gasket (31050), 0-ring

Page Number - 7
Form 403236
T LUBRICATE AIR VALVE MECHANISM
A. Disconnect air to pump.
B. Perform pressure relief procedure.
C. Remove four cover screws, cover plate and cover
plate gasket.
D. Remove air valve casting from the pump and
disassemble.
E. Clean or flush the air valve casting to remove any
chips or other foreign particles.
D. Before replacing toggle assembly, pack cavity with
grease using approximately 1-1/2 ounces of N.L.G.I.
No. 1 (light grade) water repellent grease.
F. Replace cover plate gasket, cover plate and cover
screws. Tighten to prevent air leaks.
G. Periodic inspection of parts at least once a year is
advised.
IMPORTANT
Start fasteners by hand to
avoid stripping threads when
reassembling.

Page Number - 8 Form 403236
LIMITED WARRANTY
Lincoln warrants that lubrication equipment, materials dispensing equipment and other related equipment manufactured
by it will be free from defects in material and workmanship during the one (1) year following the date of purchase. If equip-
ment proves to be defective during this warranty period, it will be repaired or replaced without charge, provided that factory
examination indicates the equipment to be defective. To obtain repair or replacement, it must be shipped, transportation
charges prepaid, with proof of date of purchase to a Lincoln authorized Warranty and Service Center within the one (1) year
following the date of purchase.
This warranty is extended to the original retail purchaser only. This warranty does not apply to equipment damaged from
accident, overload, abuse, misuse, negligence, faulty installation or abrasive or corrosive materials, or to equipment
repaired or altered by anyone not authorized by Lincoln to repair or alter the equipment. This warranty applies only to
equipment installed and operated according to the recommendations of Lincoln or its authorized field personnel. No other
express warranty applies to lubrication equipment, materials dispensing equipment, and other related equipment manu-
factured by Lincoln.
ANY IMPLIED WARRANTIES applicable to lubrication equipment, materials dispensing equipment, and other related
equipment manufactured by Lincoln INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTIC-
ULAR PURPOSE, WILL LAST ONLY FOR ONE (1) YEAR FROM THE DATE OF PURCHASE. SOME STATES DO NOT ALLOW
LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
In no event shall Lincoln be liable for incidental or consequential damages. The liability of Lincoln on any claim for loss or
damage arising out of the sale, resale, or use of lubrication equipment, materials dispensing equipment, and other
related equipment shall in no event exceed the purchase price. SOME STATES DO NOT ALLOW THE EXCLUSION OR
LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT
APPLY TO YOU.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM
STATE TO STATE.
Part Qty Description Part Qty Description Part Qty Description
10294 4 Tie rod 31047 1 Check seat gasket 57027 2 Ball stop
11329 1 Air piston bolt 31048 1 Connector gasket 61041# 1 Air cylinder
11337 1 Air piston nut 31049 2 Bushing gasket 61273 I Bushing extension
11340 1 Air motor piston rod 31050 1 Gland gasket 61321 1 Pump tube
11349 1 Piston rod connector 31054 1 Pump tube gasket 61502 1 Air passage tube
11470 1 Valve cap 33014 2 Air cylinder gasket 66010 4 Ball
11471 1 Trip rod collar 33039 1 Gasket 68531 1 Eye bolt
11472 1 Trip rod pin 34090# 1 Air piston packing 83063 1 Valve slide and seat
11475# 1 Trip shoe 34110 1 Plunger packing 90544 1 Plunger & bushing ass
y
11702 1 Check washer 34158 1 Cover gasket 90691# 1 Trip rod
11721 1 Priming check 34180 1 Gland packing 91331# 1 Toggle plate
11722 1 Check stop 34368 2 0-ring 236286 I Cover
11723 1 Plunger rod 34572 1 0-ring 236615 1 Muffler cover
11725 1 Priming check seat 35073 1 Priming check packing 236616# 1 Packing washer
11726 1 Check seat 38162 1 Slide valve gasket 236833 1 Muffler
11904 1 Packing nut 38165 1 U-cup packing 236835# 1 Trip rod packing
11905 1 Packing cap 40537 1 Outlet body 236868 4 Valve cover screw
11947 1 Trip sleeve 45605 1 Valve guide plate 236869 6 Toggle plate screw
12209 1 Coupling stud 48212 2 Air piston washer 236870 4 Valve seat bolt
12210 1 Coupling adapter 48213 1 Gland packing washer 237563 1 Air valve casting
12211 1 Coupling nut 48237 1 Plunger packing washer 238394 1 Air coupler
12333 1 Gland packing nut 48268 1 Gland packing washer 245425 1 Trip rod packing nut
14940 1 Gland packing spacer 51009 4 Tie rod nut 248462 1 Adapter
30003 1 Packing nut gasket 55138 4 Spring 248463 1 Compression spring
30011 1 Valve cap gasket 56038 2 Spring 248464 1 Plunger nut
#Recommended service part.