Graco 114903 User Manual
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
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