1-1/4”
7-1/16”
A
B
1/8” npt
dispense
outlet
13/32”
mounting
holes
3/8” npt
(2) supply
inlet/outlet
Model 114903 Shown
Instructions-Parts List
®
GL-1
For Single–Line Parallel Automatic Lubrication Systems.
Important Safety Instructions
Read all warnings and instructions in this manual and related automatic
lubrication system instruction manuals. Save all instructions.
SKIN INJECTION HAZARD
Fluid from the injector, leaks, or ruptured components
can inject fluid into your body and cause extremely serious injury, including the need for amputation. Fluid
injected into the skin might look like just a cut, but it is a
serious injury. Get immediate surgical treatment.
Fluid splashed in the eyes or on the skin can also
cause serious injury. The equipment may be pressurized already, or it could become pressurized by an
automatic lube cycle initiated by Lubrication Controller
(timer). Disconnect power to the timer, and disconnect
the air supply to the pump module to ensure that the
system is depressurized. See the pressure relief pro-
cedure in the pump manual incuded with your automatic lubrication system.
Injectors
308953N
EN
GL-1 Injector Models
Part No. Description Dimension A Dimension B Bare Manifold Part No.
114901
114902
114903
114904
114905
117206
114909
Injector, GL–1, one point
Injector, GL–1, two point
Injector, GL–1, three point 1.25 in. (31.7 mm) 4.23 in. (107.5 mm) 114913
Injector, GL–1, four point 2.50 in. (63.4 mm) 5.47 in. (139.0 mm) 114914
Injector, GL–1, five point 3.75 in. (95.1 mm) 6.71 in. (170.5 mm) 114915
Injector, GL-1, six point 4.99 in. (126.8 mm) 7.90 in. (202.7 mm) 118206
Injector, GL–1, replacement
2.48 in. (63.0 mm) 114911
3.00 in. (76.0 mm) 114912
Installation Instructions
Reference letters used in the following instructions, refer
to F
IG. 2.
• Group injectors to minimize feed line length.
• Install injectors in locations that allow easy and safe
servicing access.
• Install injectors in areas that minimize accidental
injector damage by moving equipment.
• Injector outputs can be combined for a common
bearing point with a large grease requirement but
the output for a single injector cannot be split into
multiple bearing points.
• Graco recommends using steel tubing instead of
pipe and hose for supply lines when possible. Pipe
is often contaminated with scale and requires
proper cleaning prior to use. Hose lines expand
under pressure which leads to longer pump cycle
time.
2. Install injectors on a flat, hard surface using mounting brackets (a).
3. Connect fluid supply line (c) to injectors.
NOTICE
To prevent rupturing supply lines due to over-pressurizing the components, only use supply lines and
fittings that meet or exceed the pressure rating of the
injectors.
4. Connect lube point feed lines (b).
5. Flush the system with low viscosity oil or mineral
spirits to remove contamination introduced during
installation.
6. Use a purge gun or run the pump until clean lubricant is dispensed at the end of each feed line to
purge the system of flushing fluid or air.
7. Run the system at full output and verify that all injectors are cycling.
1. Relieve pressure. See Pressure Relief Procedure,
in the pump instruction manual included with your
automatic lubrication system.
8. Adjust injector volume output. (See Volume Adjustment page 4.)
9. Connect feed lines to lubrication points.
2 308953N
Injector Service Parts
2
4
9
18
11
1
13
16
19
15
6
Manifold
(not included)
9
7
17
5
12
3
8
Torque to 50-55 ft-lbs (68-74.5 N.m)
1
Torque to 35-40 ft-lbs (47-54 N.m)
2
2
1
Injector Service Parts
Item Description Qty Part No.
1
Injector body
2
Adjusting screw
3
Lock nut
4
Packing housing
5
Zerk fitting and cap assembly
6
Copper gasket
Adapter bolt
7
(used on all manifold models)
8
Indicator pin
9
Steel gasket
Fluoroelastomer o–ring (PN
11
114997)
12
Displacement piston
13
Compression spring
15
Plunger
16
Fluoroelastomer packing
17
Fluoroelastomer packing
18
Fluoroelastomer packing
19
Inlet valve
11 114906
1 114907
1 114908
1 114916
1 114918
1-
12
1
1
1
1
1
1
1
1
Included in Injector Repair Kit 241234 only
Available Kits
Use Only Genuine Graco Repair Parts
Graco Part No. 115119 . . . . . Plastisol Injector Cover
Graco Part No. 115120 . . . . . . . . . . . . . Crossover Kit
(see page 3 for installation instructions)
(for connecting the outlets of injectors
for increased output)
Graco Part No. 241234 . . . . . . . . . Injector Repair Kit
(See Kit 241234 parts in Injector Service Parts list.)
308953N 3
Injector Cover Kit 115119
groove
21
22
Injector Cover Kit 115119
Plastisol cap for Graco GL-1 Injectors
Item Description Qty
21 Plastisol cap 1
22 O-ring 1
Installation Instructions
1. Apply a light coating of transparent lubricant to the
inside of cap (21).
2. Slide cap (21) over the indicator stem of the injector
far enough to cover the groove in the piston plug.
3. Slide the o-ring (22) down over the cap to the
groove in the piston plug, forcing the cover into the
groove to form a seal.
Volume Adjustment
*Maximum adjustment setting is when adjusting screw (2) is just making contact with the indicator pin (8) with no inlet
pressure. Turn adjusting screw clockwise (in), to reduce output. To adjust, loosen lock nut (3) and turn adjusting
screw (2) the number of turns indicated on the GL-1 Volume Adjustment Table to obtain the desired volume. Tighten
lock nut (3) when desired volume setting is reached
GL-1 Volume Adjustment Table
Description
Maximum Adjustment* 0 0.080 1.31
360° Clockwise Turn 1 0.071 1.16
360° Clockwise Turn 2 0.062 1.02
360° Clockwise Turn 3 0.053 0.87
360° Clockwise Turn 4 0.044 0.72
360° Clockwise Turn 5 0.035 0.57
360° Clockwise Turn 6 0.026 0.43
360° Clockwise Turn 7 0.017 0.28
Minimum Adjustment 8 0.008 0.13
.
Number of
Turns
in.
Volume
3
cc
4 308953N
Injector Cover Kit 115119
Technical Data
Maximum operating pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 3500 psi (24 MPa, 241 bar)
Suggested operating pressure . . . . . . . . . . . . . . . . . . . . . . . . . 2500 psi (17 MPa, 172 bar)
Reset pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600 psi (4.1 MPa, 41 bar)
Output volume per cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wetted parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . carbon steel, stainless steel, copper, fluoroelastomer
Recommended fluids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N.L.G.I. #2 grease down to 32° F (0° C)
adjustable*: 0.008 to 0.08 in.
3
308953N 5
Graco Standard Warranty
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in
material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty
published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by
Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written
recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of
non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or
maintenance of structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of
the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned
to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs
will be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT
LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or
consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT
MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to
the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these
warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or
the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the
negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into,
given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la
rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite
de ou en rapport, directement ou indirectement, avec les procédures concernées.
Graco Information
For the latest information about Graco products, visit www.graco.com.
TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor.
Phone: 612-623-6928 or Toll Free: 1-800-533-9655, Fax: 612-378-3590
All written and visual data contained in this document reflects the latest product information available at the time of publication.
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 1999, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
Graco reserves the right to make changes at any time without notice.
For patent information, see www.graco.com/patents.
Original instructions. This manual contains English. MM 308953
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
www.graco.com
Revised April 2015
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