Balcrank Lynx Series Instruction Manual

Thoroughly read and understand this manual before
installing, operating or servicing this equipment.
OPERATION, INSTALLATION,
MAINTENANCE AND REPAIR GUIDE
SERVICE BULLETIN SB1116
Revision D 3/20
®
Lynx Series High Pressure Grease Pump
Model 1151-034*.............................................................................25-35# Outt**
Model 1150-022 ............................................25-35# Bare Pump w/bung adapter
Model 1151-035*................................................................................ 120# Outt**
Model 1150-023 ............................................... 120# Bare pump w/bung adapter
Model 1151-036*................................................................................ 400# Outt**
Model 1150-024 ............................................... 400# Bare pump w/bung adapter
*Model 1151-034
*Model 1151-035
*Model 1151-036
**Drum not included

2
!
General Safety
Because this pump can be
incorporated into a pressurized
systems, the following safety
precautions should be observed.
Check equipment regularly and repair or
replace worn and damaged parts.
Never alter or modify any parts of this
pump, doing so may cause damage to pump
and/or personal injury.
Under no circumstances should the
dispensing valve be aimed at any person at
any time. Personal injury may result.
Release pressures built up in the system
before any service or repair is begun. See the
pressure relief procedure below.
Do not operate this pump above 140 PSI
(10 BAR) air inlet pressure or 200 cycles per
minute.
Always read and follow the uid
manufacturer’s recommendations regarding
the use of protective eyewear, clothing and
respirators.
IMPORTANT
!
Pressure Relief Procedure:
Follow this procedure whenever you shut
o󰀨 the pump, when checking or servicing any
part of the system and when installing, cleaning
or changing any part of the system.
1) Disconnect the air to the pump.
2) Point dispensing valve away from
yourself and others.
3) Open dispensing valve until
pressure is relieved.
WARNING
!
WARNING
!
THIS PUMP CONTAINS
ALUMINUM AND ZINC
PARTS. DO NOT use
1-1-1 Trichloroethane, methylene chloride or
other halogenated hydrocarbon solvents or
uids containing such solvents in this pump.
Use of these solvents/uids may result in a
violent chemical reaction, causing serious
bodily injury, property damage or death. All
uids used in this pump must be chemically
compatible with the wetted parts materials
shown on page three (3) of this manual.
Consult your chemical supplier to ensure
compatibility.
WARNING
!
WARNING: The Lynx 55:1
grease pump develops up to 7700 psi (531 Bar)
maximum working pressure at 140 psi (10 Bar)
maximum inlet air pressure and stall conditions.
Be sure that any components or accessories
used in the system are rated to withstand this
pressure. To determine uid output pressure at
stall conditions, multiply the ratio of the pump
by the air pressure being used.
EXAMPLE: 55:1 Pump Ratio x 100 psi air
pressure = 5500 psi uid pressure at stall.
WARNING
!
DANGER: Not for use with
fluids that have a flash point
below 100°F (38°C). Examples:
gasoline, alcohol. Sparking could
result in an explosion which could result in
death.
In the presence of explosive
vapors, take action to prevent
static sparking. Failure to
ground the pump, piping, valves, containers, or
other miscellaneous equipment can result in re or
explosion. A green grounding lug is provided on the
pump.
WARNING
!
WARNING
!
Use 3241-002 Pump Over-Run
control valve on pump air inlet for remotely
operated pumps. Failure to use this valve can
cause pump to cycle quickly when barrel is
empty of grease. THIS WILL DAMAGE THE
PUMP and may void factory warranty.
Thoroughly read and understand this manual
before installing, operating or servicing the
described products.

3
PRODUCT DESCRIPTION
The Lynx 55:1 grease pump features an in-line balanced design which ensures that a maximum
amount of energy is directed into the pump. This design provides even distribution of loads allowing
for long seal life. The Lynx 55:1 is a double acting pump, this allows pumping of the product on
both the up and down stroke providing smooth and reliable ow and pressure. An e󰀨ective priming
piston provides positive pump feeding, even when used with high viscosity or tacky greases and a
hardened foot valve minimizes pump damage due to dirt. Corrosion proof airmotor design tolerates
moisture in compressed air. The pump adjusts speed to match system ow and pressure require-
ments when the discharge is closed: the pump stops. The pump can be left in the stalled condition
without damaging the pump or consuming compressed air. The Lynx 55:1 features a one piece
molded air piston - No external air pipes. All pneumatic conductions are integrated in the air cylin-
der mold. The one toggle driven air valve mechanism provides fast and accurate reversing action.
Sintered components and precision machined parts provide high reliability.
TECHNICAL DATA
Pressure Ratio................................................................................................................................55:1
Air Pressure Operating Range ................................................................. 40 to 140 psi (2.8 - 10 BAR)
Air Motor Bore .............................................................................................................................. 2.75”
Air Motor Stroke.............................................................................................................................. 1.4”
Air Consumption (@100 psi) ..................................................................................................8.1 CFM1
Cycles Per Minute ......................................................................................................................... 2102
Maximum Free Flow Delivery.......................................................................................... .0.66 lbs/min3
Air Inlet Port Size................................................................................................................1/4” NPT(F)
Material Outlet Port..............................................................................................................1/4”NPT(F)
Noise Level..................................................................................................................................92dB4
Wetted Parts............................................................................. Steel, Zinc, Aluminum, Buna-N, PTFE
1. Maximum air consumption with 100 psi air inlet pressure and free delivery.
2. Cycles per minute for a ow rate of 10.6 ounces per minute.
3. Maximum free delivery at 100 psi, NLGI-2 grease.
4. Maximum noise leve measured at 1 meter from the pump, 100 psi and free delivery.

4
Lynx
PUMP PERFORMANCE CURVES

5
Model A B C D Weight
1150-022 24.02” 7.87” 1.02” 16.14” 7.32 lb
1150-023 36.42” 7.87” 1.02” 28.54” 9.48 lb
1150-024 44.09” 7.87” 1.02” 36.22” 10.58 lb
DIMENSIONS
INSTALLATION
These pumps must be mounted on drums
using covers tted with a 2” bung. Loosen the
star nut (1) of the bung adapter to remove
the inferior nut (3), and screw this into the 2”
bung opening of the cover. Place the star nut
(1) and the three jaws (2) on the suction tube.
Insert the pump through the opening and
fasten the assembly at the desired height (g
2). Fasten the cover to the drum.
Fig. 2
See gure 3 for a typical installation with all
the recommended accessories for the pump to
operate correctly.
NOTE: The compressed air supply must be
between 40 and 140 psi (2.8 – 10 bar), 90 psi
(6 bar) being the recommended pressure. An
air shut-o󰀨 valve must be installed, in order to
be able to close the compressed air line at the
end of the day.
WARNING
!
If the system is left unattended and the
air inlet is not closed, if there is a leak-
age at some point of the grease outlet
circuit, the pump will start automatically,
emptying the container.
NOTE
!
The compressed air supply must be
between 40 and 140 psi (2.8 – 10 bar), 90
psi (6 bar) being the recommended pres-
sure. An air shut-o󰀨 valve must be installed,
in order to be able to close the compressed
air line at the end of the day.

6
Fig. 3
Item Description
AAir shut-o󰀨 valve
B Filter Regulator
C Air hose
D Quick coupling
E Connection nipple
F Lynx 55:1 pump
G Grease hose
HGrease shut-o󰀨 valve
I Bung adapter
J Cover
K Follower plate
This pump is self–priming. To prime it the rst
time, you must connect the air supply to the
pump and slowly increase the air pressure
from 0 psi to the desired pressure using a
pressure regulator, while keeping the outlet
valve (ex. a grease gun) opened. Once grease
starts to come out through the grease gun/
guns, the pump is primed.
NOTE
!
It is important that the foot valve does not
come in contact with dirty areas, such as
a workshop oor, because it may allow dirt
or other foreign particles to enter the pump
that can damage the seals.

1. Insert the pump in a vice in a horizontal posi-
tion, grasp it by the suction tube.
2. Unscrew the intake lter tube (42) from the
intake lter head (39) (g. 1).
3. Unscrew the air motor body from the suction
tube using a threaded rod (g. 2), and pull it out
until it stops. The union nut should be visible.
4. Introduce an open end wrench in the milling
of the lower part of the air piston and unscrew
the nut (41) and remove the washer (40) (g. 3).
5. Remove the pin (25) situated in the upper
part of the union nut (g. 4) and unscrew the air
motor body from the suction tube assembly.
7
TROUBLESHOOTING
Symptom Possible Cause Solution
The pump is not working or
there is no grease delivery.
Not enough air supply pressure. Increase the air supply pressure.
An outlet line component is
clogged or closed.
Clean or open the outlet circuit.
There are air pockets in the
grease inlet area.
Compact the grease.
The pump begins to operate
very fast.
The drum is empty or the grease
level is beneath the suction tube
inlet.
Replace the drum or lower the suction
tube until the inlet reaches the grease
level.
The pump keeps on operating
although the grease outlet is
closed.
There is a grease leakage in some
point of the outlet circuit.
Verify and tighten or repair.
Impurities in the upper valve or in
the foot valve.
Remove and clean. Replace in case of
damage.
Grease leakage through the
air outlet mu󰀪er.
Grease has by-passed to the air
motor caused by worn or dam-
aged seals (22, 23) or O-ring (21).
Replace the worn or damaged parts.
The suction tube is not tightened
enough to the motor body.
Tighten the threaded union. Verify that
the O-ring (21) is in its correct posi-
tion.
Air leakage through the air
outlet mu󰀪er.
The sliding valve (12) does not
close correctly.
Remove and clean. Replace in case of
damage.
The valve support (13) or the
spring (19) are damaged.
Replace the items.
The air piston (3) is damaged. Replace it.
The O-ring (5) is damaged. Replace the Gland housing assembly.
Reduction in grease delivery. There are air pockets in the
grease inlet area.
Compact the grease.
Impurities in the upper valve or in
the foot valve.
Remove and clean. Replace in case of
damage.
Reduction in grease pressure. The high pressure cylinder (33)
or the high pressure piston (29)
scratched.
Replace the items.
MAINTENANCE
WARNING
!
Before starting any kind of
maintenance or repair, Follow the pressure
relief procedure on page 2 of this service
bulletin.
Foot valve kit

8
6. Unscrew the foot tube with the intake lter
(39) from the high pressure cylinder . Attach
the foot tube to the vice, unscrew the intake
lter (39) remove the foot valve seat (38),
the foot valve assembly (37) and the valve
washer (36).
7. Clean these parts, replace in case of
damage. Assemble the pump following the
previous instructions, reversing each step.
833040
1. Introduce a steel rod (ø 4 mm recom-
mended) through the lower grease passing
hole in the high pressure piston (29) and
unscrew it from the grease valve body (B).
2. Clean the grease valve ball (28) and its
seat in the high pressure piston (29). In case
of damage, replace the a󰀨ected parts.
3. If the high pressure piston (29) is
scratched, unscrew also the high pressure
cylinder (33) from the suction tube and from
the foot tube (37) to check it. Assemble the
pump following the previous instructions,
reversing each step. NOTE: The high pres-
sure piston and cylinder must always be
replaced at the same time.
833041
HP piston/cylinder & check valve kit

1. Fix the air motor body in a suitable way and loosen the ve screws (D) to remove the air motor
cap (C).
2. Introduce an open end wrench in the milling of the lower part of the air piston . With another
wrench unscrew the air piston nut (1) and remove the parts (1), (2), (3) and (4).
3. Pull the air piston rod downwards until it is completely outside the motor body .
4. Unscrew the spring nut (G) from the motor body and remove the parts (G), (20), (19), (18) and
(17).
5. Unscrew the screws (15) and remove the parts (14), (13), (12), (11), (10) and (9).
1. Follow the procedure for the air motor until the
air piston rod is outside the air motor body.
2. Remove the packing set (22-24) and the O-ring
(21). Replace these parts and clean the seat of
the O-ring.
833039
833038
Kit n0
Packing seal kit
Air motor kit
9
NOTE
!
It is important that these parts are mounted
in correct order: Place rst the O-ring in
its correct position inside the motor body.
Introduce thereafter the big and the small
packing set.

10
ACCESSORIES (included in outts)
Outt Model Description Part Number
1151-034 Drum cover 25-35# 4420-010
1151-035 Drum cover 120# 4420-011
1151-036 Drum cover 400# 4420-015
Outt Model Description Part Number
1151-034 Follower plate 25-35# 4440-013
1151-035 Follower plate 120# 4440-014
1151-036 Follower plate 400# 4440-018
Outt Model Description Part Number
1151-034 Bung adapter 25-35# 4411-023
1151-035 Bung adapter 120# 4411-023
1151-036 Bung adapter 400# 4411-023
Description Part Number
Grease gun holder 4420-012
Outt Model Description Part Number
1151-034 Filter Regulator 25-35# 3260-033
1151-035 Filter Regulator 120# 3260-033
1151-036 Filter Regulator 400# 3260-033
OPTIONAL ACCESSORIES (not included in outts)

11
Part number Description
833038 Air motor kit
833039 Packing seal kit
833040 Foot valve kit
833041 HP piston/cylinder & check valve
4411-023 Bung adapter
REPAIR KITS

12
Balcrank®Corporation
Weaverville, NC 28787
800-747-5300
800-763-0840 Fax
www.balcrank.com
SERVICE BULLETIN SB 1116
Rev. D 3/20
For Warranty Information Visit
www.balcrank.com
Revision Log:
Rev. A - New release
Rev B - Added bare pump model numbers
Rev C - Added 400# models
Rev D - Replaced numbers 1151-027,
1151-028, 1151-032 with 1151-034,
1151-035 and 1151-036