Lincoln A Series User manual

Page
Section - Q5 - 2H
Form 404217
FEB - 2011
HTL-429
HYDRAULIC PUMP
MODEL 85414 Series “A”
MODEL 85424 Series “A”
MODEL 85425 Series “A”
MODEL 85429 Series “B”

Page Number - 2
HTL-429 HYDRAULIC PUMP
MODEL 85414 Series “A”, MODEL 85429 Series “B”
MODEL 85425 Series “A”, MODEL 85424 Series “A”
Form 404217
Table of Contents
Page
Safety ...........................................................................................2
General Description......................................................................2
Appropriate Use.....................................................................2
Product Specications...........................................................3
Pump Operation............................................................................3
Excavators and Backhoes.............................................................3
Skid Steers...................................................................................3
Lubricant Recommendations........................................................3
Pump Output Adjustment...............................................................4
Installing the Pump........................................................................4
Maintenance and Repair................................................................4
Installing Grease Cartridge............................................................4
Manual (Bulk) Filling......................................................................4
Air Purging....................................................................................4
Installing the Pump........................................................................4
Filling Pump with Lubricant, Removing Empty Cartridge...................5
Return Spring Adjustment Procedure.............................................5
Disassembly Procedure................................................................5
Pump Dimensions.........................................................................6
Pump Cut-Aways......................................................................7 & 8
Pump Exploded View.....................................................................9
Repair Parts List..........................................................................10
Trouble Shooting.........................................................................11
Safety
Read and carefully observe these operating instructions before
unpacking and operating the pump. The pump must be oper-
ated, maintained and repaired exclusively by
persons familiar with the operating instructions. Local safety
regulations regarding installation, operation and maintenance
must be followed.
Operate this pump only after safety instructions and this ser-
vice manual are fully understood.
Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.
Safety Instructions
This equipment generates very high grease pressure.
Extreme caution should be used when operating this
equipment as material leaks from loose or ruptured
components can inject uid through the skin and into the
body causing serious bodily injury. Adequate protection
is recommended to prevent splashing of material onto the
skin or into the eyes.
Description
General Description
This unit is a hydraulically operated, single acting, spring
return, positive displacement pump designed to deliver grease
under pressure. The pump is primarily designed to lubricate
bushings of the tool bit in Hydraulic Hammers. The pump can
be used to lubricate bushings and bearings on grippers and
crushers. The pump is designed to be directly installed on the
hammer, gripper or crusher and connected to the hydraulic
power supply of the carrier. Grease outlet of the pump should
be connected by hose to the point of lubrication.
The pump could be attached to an SSV divider block for mul-
tiple point lubrication.
The pump uses grease from standard 14.5 oz. grease cartridg-
es, eliminating the need for bulk lling equipment. The pump
may be lled from a bulk lubricant container if desired.
Model 85429 is for use on machinery where relative low hy-
draulic pressures are available. Operating pressures must be
around 1000 to 1200 PSI for the power stroke of the pump, de-
pending on backpressures encountered and output required at
the pump outlet. (See below). Hydraulic pressure must vent
below 400 PSI for the pump to recharge for the next cycle.
Model 85425 is for use on machinery where higher relative hy-
draulic pressures are available. Operating pressures must be
around 2500 to 3000 PSIG for the power stroke of the pump,
depending on backpressures encountered and output required
at the pump outlet. (See below.) The hydraulic pressure must
vent below 1100 PSI for the pump to recharge for the next
cycle.
Model 85424 is for use on machinery where higher relative
hydraulic pressures are available. Operating pressures must
be around 2500 to 3000 PSIG for the power stroke of the
pump, depending on backpressures encountered and output
required at the pump outlet. (See below.) The hydraulic pres-
sure must vent below 600 PSI for the pump to recharge for the
next cycle.
Appropriate Use
• This pump is exclusively designed to dispense grease in
Hydraulic Hammer and gripper/crusher applications.
• It should be operated only with hydraulic power.
• The maximum ratings given should not be exceeded.
• Any other use not in accordance with the instructions will
result in loss of claims for warranty and liability.
If any uid appears to penetrate the skin, get emergency
medical immediately. Do not treat as a simple cut.
Tell attending physician exactly what uid was injected.

Page Number - 3
Form 404217
HTL-429 HYDRAULIC PUMP
MODEL 85414 Series “A”, MODEL 85429 Series “B”
MODEL 85425 Series “A”, MODEL 85424 Series “A”
Pump Operation
The hammer pump operates simultaneously with the operation
of the hammer. The pump will discharge lubricant each time
that the hydraulic pressure rises to the pump’s operating pres-
sure. The pump will prime or recharge with lubricant when the
hydraulic pressure vents to the pump’s recharge or vent pres-
sure. The hydraulic pressure to the pump must cycle between
the operating and recharge pressures to operate properly.
Product Specication
Operating Temperature -10° F to +180° F
(-23°C to +80°C)
Hydraulic Port SAE #4 (7/16-20 UNF) O-Ring
Pump Outlet SAE #4 (7/16-20 UNF) O-Ring
Weight (empty) 16.3 lbs. (7.4 kg)
Weight (full) 17.3 lbs. (7.8 kg)
* Optional metering plugs are available for different output
volume. See “Pump Output Adjustment”
MODEL 85414 typical operating characteristics with a .031 cu.
in. [0.5 cc] (standard) metering plug, operating with 600 psi
backpressure on the pump lube outlet will require at least 3056
psi hydraulic pressure to operate the pump.
MODEL 85429 typical operating characteristics with a .018
cu. In [0.3 cc] (standard) metering plug, operating with 600-
PSI backpressure on the pump lube outlet will require at least
1000-PSI hydraulic pressure to operate the pump.
For a higher output with optional metering plug 271927, (.031
cu. In. [0.5cc]) will require 1200 PSI hydraulic pressure.
MODEL 85425 typical operating characteristics with a .018
cu. In [0.3 cc] (standard) metering plug, operating with 600-
PSI backpressure on the pump lube outlet will require at least
2500-PSI hydraulic pressure to operate the pump.
For a higher output with optional metering plug 271927, (.031
cu. In. [0.5cc]) will require 3056 PSI hydraulic pressure.
MODEL 85424 typical operating characteristics with a .018
cu. In [0.3 cc] (standard) metering plug, operating with 600-
PSI backpressure on the pump lube outlet will require at least
2150-PSI hydraulic pressure to operate the pump.
Lubricant from the pump reservoir will be discharged, under
pressure, from the pump lube outlet to the lube point with each
pump cycle. The pump reservoir has a spring-loaded follower
to help prime the pump. A vent valve, item 12, is supplied to
help vent air out of the lubricant reservoir when the reservoir is
lled or cartridge is changed.
The lubricant reservoir is secured in place with a locking spring
clip, item 32, to prevent loosening of the reservoir in a high
vibration environment. A locking retaining clip, item 31, is also
provided to keep the reservoir follower rod from extending from
the pump.
The lubricant reservoir may be bulk lled or standard 14 oz.
Grease cartridges may be installed. See appropriate section
of this manual for details.
Connecting to the Hydraulic System:
Connections to the carrier hydraulic system will depend upon
how the hydraulic system operates and the pressures in-
volved. Pump selection should be made based on the pres-
sures encountered. The pump may be installed into either
the high-pressure hydraulic lines or the return lines depending
upon how their pressures uctuate when the hammer is in
operation.
In some hydraulic systems the pressure on the high-pressure
lines will operate at pressures adequate for proper pump op-
eration when the hammer is operating and vent to a pressure
low enough for the pump to recharge with each operating cycle
of the hammer.
In other hydraulic systems the pressure on the high-pressure
line will be great enough to operate the pump, but will not vent
to a pressure low enough for the pump to recharge properly.
There will be some situations where connections into the hy-
draulic return lines will provide sufcient pressures to operate
the pump, and vent to pressures low enough for the pump to
adequately recharge.
Both pumps require hydraulic pressure that will be great
enough to meet the hydraulic operating pressure, and vent
down low enough to meet the recharge pressure requirement.
MODEL 85429 85425 85425 85414©
Hydraulic Ratio @ Max
Output and Pressure* 2.4:1 0.7:1 0.7:1 0.7:1
Max Hydraulic Operating
Pressure 2600 PSIG [112 Bar] 5000 PSIG [345 Bar] 5000 PSIG [345 Bar] 5000 PSIG [345 Bar]
Max Recharge (or Vent)
Pressure 400 PSIG [28 Bar] 1100 PSIG [75 Bar] 600 PSIG [41 Bar] 1100 PSIG [75 Bar]
Max Lube Outlet 6500 PSIG [450 Bar]
Pressure
Output Per Stroke (Std. .018 CU IN [0.3 cc] Std. .031 CU IN [0.5 cc] Std.
Metering Plug) .006-.031 CU IN [0.1-0.5cc] Optional* .006-.031 CU IN [0.1-0.5cc] Optional*
Grease Rerservoir
Volume 14.5 Oz

Page Number - 4
HTL-429 HYDRAULIC PUMP
MODEL 85414 Series “A”, MODEL 85429 Series “B”
MODEL 85425 Series “A”, MODEL 85424 Series “A”
Form 404217
The pump will “follow” the hydraulic pressure delivered to
it. If the hydraulic pressure remains relatively steady to the
pump the pump will deliver lubricant on the forward stroke
and remain in the forward position until vented at or below the
recharge pressure. If the hydraulic pressure has pressure
uctuations between recharge and operating pressure, due to
hydraulic impulses in the line from hammer strokes, the pump
plunger will “follow” the impulses and deliver multiple shots
of lubricant from the lube outlet. While the pump is designed
with a limited pressure snubbing ability built into the pump’s
hydraulic inlet, external methods may have to be employed
to eliminate or reduce the pressure impulses in the hydraulic
lines.
The information below may be used as a very basic guideline
in properly connecting the pump to the carrier, for specic
installations not covered, call Lincoln Technical Services for
assistance.
Excavators and Backhoes
Main pressure of the hydraulic power supply of the excavators
and the backhoes drops below recharge pressure very rapidly
when hammer is stopped. This will allow the spring to return
the piston to recharge the pump.
Connect the Pump to the Pressure Line. The pump will cycle
and deliver the lubricant as soon as the hammer starts to oper-
ate. During the repositioning of the hammer to a new location,
the springs will return the piston to recharge the pump for a new
cycle. The lubrication of the hammer is done during the ham-
mer operation.
Skid Steers
Skid steers with hydrostatic transmissions have a
back pressure in the return line, since hydraulic uid returned
to the tank through the transmission itself. The hydrostatic
transmission is used to drive the skid steer using hydraulic
power generated by diesel motor. The back pressure in the
return line can vary from 350 to 1,200 PSIG (24 to 82 bar)
depending on the skid steer manufacturer, but quickly drops to
50 PSIG (3.5 bar) or below during hammer operation.
Connect the pump to the return line. The pump will deliver
the lubricant using the back pressure when hammer stops to
operate and will recharge during the hammer operation when
the pressure drops. So, the lubrication is done during hammer
repositioning to new location and pump will recharge during
hammer operation, this is opposite of the lubrication cycle of
the excavators and backhoes.
Lubricant Recommendations
Hammer manufacturers recommend lubricating while the
hammer is standing upright, resting on the tool to ensure that
the grease will penetrate downward between the tool and the
bushing. This recommendation is important when lubrication
is made using the manual grease gun and a large amount of
lubricant pumped into the hammer. The upright position of
the hammer with tool in a resting position will ensure that the
space between the piston and the tool not be lled with the
lubricant. Automatic lubrication with the single stroke pump
injects a very small amount of lubricant during hammer opera-
tion and there is no need for the hammer tool to be in a resting
position.
How much lubrication is enough? The pump output should be
adjusted to make the length of the tool shank that is traveling
in and out of the bushing visibly “wet” with lubricant. Do not
over lubricant to the point that grease is clumping and runs
down on the tool.
Pump Output Adjustment
The Output Plug shipped with the pump will allow an output
of .018 in³ (.03 cm³) (see Illus. #4 Item 23). The output of the
pump can be increased or decreased by replacing the meter-
ing plug with one of the optional plugs below:
1. 271924 - 0.006 in³ (0.1 cm³)
2. 271925 - 0.012 in³ (0.2 cm³)
3. 271926 - 0.018 in³ (0.3 cm³)
4. 271927 - 0.031 in³ (0.5 cm³)
Carrier Type Connection Lines
Excavator, Backhoe Pressure line
Skid Steers Return Line
The connection of the pump to the carrier will depend only on
the type of the carrier and will not be dependent on the type or
manufacturer of the hammer:
Regardless of the pump connection to the pressure or return
line, if pressure uctuation during the hammer operation falls
below recharge pressure the pump can deliver a small amount
of lubricant due to the piston partial movement. This additional
lubricant output has to be taken into consideration during se-
lection of the Output Plug (23), Illus. #4. to adjust the lubricant
output.

Page Number - 5
Form 404217
HTL-429 HYDRAULIC PUMP
MODEL 85414 Series “A”, MODEL 85429 Series “B”
MODEL 85425 Series “A”, MODEL 85424 Series “A”
Filling Pump with Grease
Removing Empty Cartridge
1. Disengage the retaining clip
from the follower handle as
shown in the illustration, below.
2. Pull the spring clip of the
reservoir retainer by grasping
the nger tab on the clip and
disengage the clip ngers from
the housing groove.
Loosen the Grease Cartridge
Housing a couple of turns to
break the seal.
3. Pull back the follower handle until the follower rod is fully
extended and latch the follower rod groove into the slot in
the tube cap.
4. Unscrew the grease cartridge housing (28) from the pump
head (11).
5. Carefully release the follower handle to eject the empty car-
tridge from the container tube.
Installing Grease Cartridge©
1. Pull back on the follower handle and latch the follower rod
groove into the slot on the tube cap.
2. Remove the plastic cap from the grease cartridge and
insert the cartridge into the container tube.
3. Remove the pull-tab from the grease cartridge. Pull the n-
ger tab on the spring retainer (31) back to clear the grease
cartridge housing (28) as the housing is placed into the
opening in the pump head (11). Screw grease cartridge-
housing (28) into the pump head (11) and tighten.
4. Release follower rod from slot. Purge air from pump. See
air-purging instructions.
5. Latch the retaining clip over the top of the follower handle
to prevent the follower rod from protruding from the grease
cartridge housing.
6. If installing a grease cartridge for the rst time, see Install-
ing the Reservoir Retainer, above for proper adjustment.
INSTALLING THE PUMP
The pump should be installed directly on the hammer or the
carrier adapter for the hammer or attachment. It is preferable
to mount the pump so that the cartridge housing (28) is in the
upright position (as shown on the front page), but horizontal
positioning is acceptable. Allow sufcient space for cartridge
changing and service. (See Fig. #2 for dimensions). The red
low-level indicator (18) should be readily visible. Mount the
pump in a position that it will be protected from damage by any
debris which may be encountered when the hammer or attach-
ment is in operation.
IMPORTANT: The feed line to the lube point must also be
protected from damage by armoring the line or other suitable
method of protection.
1. Lincoln recommends using Grade 8 fasteners, or equiva-
lent, for mounting the pump to the hammer or adapter. It
is important that two at washer are used between the
bolt head or nut and the pump body of each fastener. 1/2”
grade 8 bolts, nuts and at washer are recommended. Ap-
ply 120 ft.-lbs. torque to the fasteners. Fabricate a mounting
bracket if necessary.
2. Using appropriate high-pressure hose, connect the pump
hydraulic inlet to the source of hydraulic power. This may
be either the supply or return lines to the hammer. See
above.
3. Fill the pump with lubricant. (See FILLING PUMP WITH
LUBRICANT AND AIR PURGING INSTRUCTIONS.)
4. Attach the lubricant feed line to the lube outlet on the pump.
5. Prime the lubricant feed line with lubricant.
6. Connect the lubricant feed line to the lube point. This
should be a direct connection, avoiding any grease tting
couplers of possible.
7. Protect the lubricant feed line from damage by covering
with steel channel or angle iron if necessary.
IMPORTANT: The Low Level Indicator Rod (14) will extend
from the bottom of the pump when the grease cartridge hous-
ing is empty. See (Fig. # 3, View D) Replace empty cartridge
or ll cartridge housing promptly with fresh lubricant.
Adjusting the Spring Clip
For the Spring Clip (32) to properly retain the grease cartridge
housing (28), it must be properly adjusted for either bulk or car-
tridge lling. If the pump is to be used with grease cartridges,
the spring clip (32) must be adjusted to t tightly in the groove
when a grease cartridge installed is in the grease cartridge
housing (28). If the pump is to be bulk lled or lled with a
pump, the spring clip should be adjusted to t into the groove
tightly with no grease cartridge installed in the cartridge hous-
ing (28). See Illus. #3, View A. Refer to appropriate section for
details on adjustment.
Maintenance and Repair
Relieve pressure from the pump and supply lines before
servicing or repairing the pump, to reduce the risk of an injury
from injection, splashing uid or moving parts.
Always use Lincoln Industrial parts for service and repair.
© Indicates change

Page Number - 6
HTL-429 HYDRAULIC PUMP
MODEL 85414 Series “A”, MODEL 85429 Series “B”
MODEL 85425 Series “A”, MODEL 85424 Series “A”
Form 404217
Bulk Filling with Filler Pump©
1. Remove Vent Fitting (12) and replace with Grease Fitting
5003 (29), included in package.
2. Engage the follower rod with the follower by lightly pulling
up and rotating the follower handle.
3. Push ller pump socket onto ller nipple.
4. Operate ller pump to ll container tube while watching
follower rod. The container is full when notch on follower
rod becomes visible.
5. Disengage follower rod from follower and push follower
rod into container tube. Air purging is not required unless
the Grease Cartridge Housing (28) was removed from the
Pump Head (11).
Removing Empty Cartridge
1. Loosen the Grease Cartridge Housing (28) a couple of
turns from the pump head (11) to allow air to enter the
cartridge housing.
2. Pull back on the Follower Handle (30) until the follower rod
is fully extended, and latch the follower rod groove into the
slot on the tube cap.
3. Unscrew the Grease Cartridge Housing (28) from the
Pump Head (11).
4. Carefully release the follower handle to eject the empty
cartridge from the container tube.
Disassembly Procedure Model 85429 (See Ex-
ploded View and Fig. #3)
Tools Required:
- 11/16” wrench
- 3/4” wrench
- 5/16” Allen wrench
1. Loosen the Grease Cartridge Housing (28) a turn or two
and pull the Follower Handle (30) until the notch on the fol-
lower rod can be latched into the slot in the tube cap.
2. Remove the Grease Cartridge Housing (28).
3. Remove the Grease Cartridge is present.
4. Remove the packing (27) from the pump head (11).
5. Disconnect the hydraulic supply line from the cylinder block
(2).
6. Loosen each of the four cap screws (1) equally until all
tension is removed from the springs (8, 9 & 10) inside the
cylinder block (2).
7. Remove the screws (1) followed by the cylinder block (2).
8. Remove the piston (4) from the cylinder block (2).
9. Remove the packing (3) from the piston (4).
10. Lift the spring retainer (5) until it can be pulled from of
the plunger (6).
11. Remove all the springs (8, 9 & 10) and washer (7) from
the pump body (11).
12. Remove the packing (3) from the pump body (11).
13. Remove the metering plug (23) and O-Ring (20) from
the pump body (11).
14. Remove the outlet check adapter (19), O-Ring (20),
spring (21) and check ball (22) from the pump body (11).
15. Remove the vent valve (12) or ller tting (29) from the
pump body (11).
Manual (Bulk) Filling©
1. Pull the spring clip of the reservoir retainer by grasping the
nger tab on the clip and disengage the clip ngers from
the housing groove while unscrewing the Grease Cartridge
Housing (28) from the Pump Head (11).
2. Pack the follower end of the container tube with grease to
eliminate air pockets.
3. Dip the packed end of the container tube about one inch
into bulk container.
4. Slowly pull follower handle back while gradually pushing
the container tube deeper into the grease,
5. When the follower rod is fully extended, latch the groove in
the follower rod with the slot in the reservoir cap.
6. Wipe excess grease from the outside of the container tube.
7. Pull the nger tab on the spring retainer (31) back to clear
the grease cartridge housing (28) as the housing is placed
into the opening in the pump head (11). Screw grease
cartridge-housing (28) into the pump head (11) and tighten.
8. Adjust the spring retainer as required, see Installing the
Reservoir Retainer.
9. Latch the retaining clip over the top of the follower handle
to prevent the follower rod from protruding from the grease
cartridge housing.
Air Purging
1. Engage the follower rod with the follower by lightly pulling
up and rotating the follower handle.
2. Push down on follower handle while pressing button on
Vent Valve (12) to force any air pockets out of Pump Head
(11).
3. Wipe excess grease from Vent Valve (12).
4. Pump will prime more quickly with the .018 in³ (.3 cm³) or
larger metering plug installed.
5. Use the manual lube tting (item 36) to purge and ll the
bearing feed lines with grease. A conventional grease
gun may be attached to the manual lube tting.
© Indicates change

Page Number - 7
Form 404217
HTL-429 HYDRAULIC PUMP
MODEL 85414 Series “A”, MODEL 85429 Series “B”
MODEL 85425 Series “A”, MODEL 85424 Series “A”
16. Remove the low-level indicator as a unit, (see illus. #3,
view D) by removing the bushing from the pump body
(11).
17. Disassemble the low level indicator by removing the
indicator cap (18) and lower retaining ring (13) from the
indicator rod (14).
18. Carefully slide the indicator rod (14) from the bushing
(17). The spring (16), washer (15) may now be
removed from the indicator rod (14).
19. Remove O-ring (25) from the bushing (17).
20. Remove the spring clip (32) and plate (33) from the
pump body (11) by removing two screws (35) and lock
washer (34).
21. Disassemble the grease cartridge housing (28) by
unscrewing the cap counterclockwise from the tube.
Slide the rod, spring and packing assembly out of the
reservoir tube.
22. Remove the retaining clip (31) from the cap.
23. Compress the spring and remove the follower handle
(30) from the rod.
24. Carefully release the spring tension and remove the
spring and cap from the follower rod.
25. The follower assembly (26) can be removed from the
follower rod by sliding up the rod towards the handle
end of the rod.
26. All components should be cleaned. Worn or damaged
parts should be replaced. All packings and seals
should be replaced.
27. Reassemble in the reverse order of assembly. Use
views in illus. #3 for aid in installing packings correctly
and in reassembly of the pump. Lincoln recommends
using thread locking compound (such as Loctite #242
or equivalent) for all threaded connections during
reassembly.
28. When installing the spring clip (32), adjust as required
for cartridge or bulk lling. See Installing Grease
Cartridge or Manual (Bulk) Filling as required for
adjustment procedures.
29. When installing the cylinder head (2) the cap screws (1)
should be tightened to a torque of 13-14 ft.-lbs.
30. If pump is to be reassembled without lling the grease
reservoir, install the grease cartridge housing (28) with
the follower rod groove latched into the slot in the tube
cap. This will prevent the low level indicator rod (14)
from binding with the follower assembly (26).
Disassembly of Models 85424 &85425
Tools and procedures are similar to Model 85429 except as
noted below.
1. To remove upper U-Cup Seal (40), disassemble pump with
above procedures. Remove packing retainer (38) and piston
(37) to access U-Cup Seal.
2. To reassemble, install U-Cup Seal (40).
3. Install Packing Retainer (38). Apply Loctite #242 Thread
Locker, or equivalent, to threads before installing.
4. Lubricate end of Piston (37) with grease and carefully slide
into Packing Retainer (38) and U-Cup Seal (40).
5. Complete Assembly in reverse order of disassembly.

Page Number - 8
HTL-429 HYDRAULIC PUMP
MODEL 85414 Series “A”, MODEL 85429 Series “B”
MODEL 85425 Series “A”, MODEL 85424 Series “A”
Form 404217
Fig. #2

Page Number - 9
Form 404217
HTL-429 HYDRAULIC PUMP
MODEL 85414 Series “A”, MODEL 85429 Series “B”
MODEL 85425 Series “A”, MODEL 85424 Series “A”
Fig. #3
©
© Indicates change

Page Number - 10
HTL-429 HYDRAULIC PUMP
MODEL 85414 Series “A”, MODEL 85429 Series “B”
MODEL 85425 Series “A”, MODEL 85424 Series “A”
Form 404217
Fig. #4
* Apply loctite 242 or equivalent thread
locking compound to threads indi-
cated.
31
26
28
27
11
32
33
34
*35
15
14
25
18
15
16
*17
*29
*12
13
*23
20
22
*19
21
*36
20
*1
2
3
5
6
10
9
8
7
3
24
*30
39
37
40
38*
Models
85424 &
85425
4
Model
85429

Page Number - 11
Form 404217
HTL-429 HYDRAULIC PUMP
MODEL 85414 Series “A”, MODEL 85429 Series “B”
MODEL 85425 Series “A”, MODEL 85424 Series “A”
Notes:
1. Included in 271936 Seal Kit
REPAIR PARTS LIST
Item No. Qty. Description Repair Part No.
1 4 Socket Head Screw (3/8-16 x 1-1/4”) 271923
2 1 Cylinder Block (85429) 272239
3 2 U-Cup (polyurethane) (See Note #1)
4 1 Piston (85429) 271921
5 1 Spring Retainer 271931
6 1 Plunger 271922
7 1 Washer 48397
8 1 Spring 249966
9 1 Spring (85425, 85429) 249965
10 1 Spring 249964
11 1 Pump Head 272237
12 1 Vent Valve 243307
13 2 Retaining Ring 68405
14 1 Indicator Rod 271928
15 2 Washer 48358
16 1 Spring 249967
17 1 Bushing 271929
18 1 Indicator Cap
249969
(See Note #1)
19 1 Outlet Housing 272325
20 1 O-Ring (Nitrile) (See Note #1)
21 1 Spring 55005
22 1 Check Ball
66030
(See Note #1)
23 1 Metering Plug (0.3 cc) 271926
1 Metering Plug (0.5 cc) (85414 only) 271927*
24 4 Lockwasher, 3/8 HI Collar
272410
(See Note #1)
25 1 O-Ring (Nitrile) (See Note #1)
26 1 Follower Assembly 93499©
27 1 Packing (neoprene)
249968
(See Note #1)
28 1 Grease Cartridge Housing (incl. #26, 30 & 31©) 249952S
29 1 Fill Fitting (Optional) 5003
30 1 Follower Handle 261514
31 1 Retaining Clip 272216
32 1 Spring Clip 272257
33 1 Plate 272258
34 2 Lockwasher #10 66213
35 2 #10-32 x 1/2” Button Head Cap Screw 272259
36 1 90° Grease Fitting 5400
37 1 Piston (85424, 85425) 273846
38 1 Packing Retainer (85424, 85425) 273844
39 1 Cylinder Block (85424, 85425) 273842
40 1 U-Cup (polyurethane) (85424, 85425) (See Note #1)
1 Seal Kit 271936
© Indicates change
* See Pump Output Adjustment on Page 4 for metering plugs
available.

Page Number - 12
HTL-429 HYDRAULIC PUMP
MODEL 85414 Series “A”, MODEL 85429 Series “B”
MODEL 85425 Series “A”, MODEL 85424 Series “A”
Form 404217
Americas:
One Lincoln Way
St. Louis, MO 63120-1578
USA
Phone [phone]
Fax [phone]
© Copyright 2011
Printed in USA
Web site:
www.lincolnindustrial.com
TROUBLESHOOTING
Condition Possible Cause Corrective Action
Pump does not operate. No hydraulic pressure to pump. Turn on or connect hydraulic supply.
Piston or plunger is stuck. Disassemble pump, inspect for
damaged or worn parts. Replace
if necessary.
Hydraulic backpressure is too Try connecting pump to hammer
high for pump to return. hydraulic return circuit.
Broken Return Spring(s) Replace all Return Springs.
Pump does not Grease cartridge is empty. Replace empty grease cartridge.
dispense grease. Follower is stuck. Check Cartridge Housing for damage.
Worn Plunger or Pump Body. Replace worn parts.
Pump check worn or damaged. Replace check ball (22)
Lubricant or hydraulic Worn seal on plunger or Disassemble pump, replace worn
uid in spring chamber. piston. seals.
Europe /Africa/Middle East
Lincoln GmbH
Heinrich-Hertz-Str. 2-8
69190 Walldorf - Germany
Phone/Fax [phone]
www.lincolnindustrial.de
Asia/Pacic:
No. 3 Tampines Central 1
#04-05, Abacus Plaza.
Singapore 529540
Tel [phone]
Fax [phone]