GRACO GL-33, GL-42 Instruction Manual
Instructions
GL-33
®
(Grease) and
®
GL-42
For Single-Line, Parallel, and Automatic Injector Systems dispensing grease, N.L.G.I.
grades #000 - #2 and oil (minimum SAE 10 weight).
3500 psi (24 MPa, 241 bar) Maximum Working Pressure - Grease Models
1000 psi (6.89 MPa, 68.9 bar) Maximum Working Pressure - Oil Models
(Oil) Injectors
334495E
Model Nos.:
GL-33
1/8 NPTF
Stand-Alone 24W487
24W488
Replacement 24W483 24W484 24W485 24W486 24W491 24W492
Replacement* 25P458 25P459 25P460 25P461 25P462 25P463
1X Manifold 24W401 24W501 24W601 24W701 24W801 24W901
2X Manifold 24W402 24W502 24W602 24W702 24W802 24W902
3X Manifold 24W403 24W503 24W603 24W703 24W803 24W903
4X Manifold 24W404 24W504 24W604 24W704 24W804 24W904
5X Manifold 24X302 24X303 24X304 24X305 24X306 24X307
6X Manifold 24W405 24W505 24W605 24W705 24W805 24W905
7X Manifold 25R873
9X Manifold 24W406 24W806
10X Manifold 24W407 24W506 24W606 24W706 24W807 24W906
15X Manifold 24W408 24W507 24W607 24W707 24W808 24W907
*Replacements of individual injectors for corresponding Lincoln, Dropsa, and Bijur models
GL-33
1/8 BSPP
GL-33 SST
1/8 NPTF
24W489
24W490
GL-33 SST
1/8 BSPP
GL-42
1/8 NPTF
24W493
24W494
GL-42
1/8 BSPP
EN
Important Safety Instructions
Read all warnings and instructions in this manual and in the pump instruction manual included
with your system. Save all instructions.
Warnings
WARNING
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The
exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks.
When these symbols appear in the body of this manual or on warning labels, refer back to these Warnings.
Product-specific hazard symbols and warnings not covered in this section may appear throughout the body of this
manual where applicable.
FIRE AND EXPLOSION HAZARD
When flammable fluids are present in the work area, such as gasoline and windshield wiper fluid, be
aware that flammable fumes can ignite or explode. To help prevent fire and explosion:
• Use equipment only in well ventilated area.
• Eliminate all ignition sources, such as cigarettes and portable electric lamps.
• Keep work area free of debris, including rags and spilled or open containers of solvent and gasoline.
• Do not plug or unplug power cords or turn lights on or off when flammable fumes are present.
• Ground all equipment in the work area.
• Use only grounded hoses.
• Stop operation immediately if static sparking occurs or you feel a shock. Do not use equipment
until you identify and correct the problem.
• Keep a working fire extinguisher in the work area.
SKIN INJECTION HAZARD
High-pressure fluid from dispensing device, hose leaks, or ruptured components will pierce skin. This
may look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical
treatment.
+
• Do not point dispensing device at anyone or at any part of the body.
• Do not put your hand over the fluid outlet.
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Follow the Pressure Relief Procedure when you stop dispensing and before cleaning, checking, or
servicing equipment.
• Tighten all fluid connections before operating the equipment.
• Check hoses and couplings daily. Replace worn or damaged parts immediately.
PERSONAL PROTECTIVE EQUIPMENT
Wear appropriate protective equipment when in the work area to help prevent serious injury, including
eye injury, hearing loss, inhalation of toxic fumes, and burns. This protective equipment includes but is
not limited to:
• Protective eyewear, and hearing protection.
• Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer.
2 334495E
Installation
7
8
6
ti14179
Installation
Pressure Relief Procedure
Follow the Pressure Relief Procedure whenever
you see this symbol.
This equipment may stay pressurized or may become
pressurized by an automatic lubrication cycle initiated
by a lubrication controller. To help prevent serious
injury from pressurized fluid, such as skin injection,
splashing fluid and moving parts, follow the Pressure
Relief Procedure before cleaning, checking, or
servicing the equipment.
1. Disconnect power to the lubrication controller.
2. If connected to an air supply, disconnect air supply
to pump module to ensure the system is depressurized.
3. Consult your pump manual for any additional pressure relief instructions related to your pump module.
• The amount of dispensed volume can vary
depending on external conditions such as lubricant temperature and back pressure from the
downstream connection.
4. When the injector has been adjusted for the proper
lubricant output, wrench tighten the stroke adjustment lock nut (7).
NOTICE
To prevent component failure, the adjustment nut (8)
must not be extended beyond the fully retracted
position of the piston (6). See F
IG. 1.
Adjustment Instructions
Reference numbers used in the following instructions
refer to F
1. Loosen lock nut (7).
2. Hand tighten the Adjuster Nut (8) then loosen,
3. Retracting the Adjuster Nut (8) one and three-quar-
IG. 1.
approximately 1/2 turn to achieve the minimum dispensed output volume (0.001 in.
NOTE: Any output setting below 1/2 turn should be
monitored to verify actual output volume.
ter turns from the hand-tight position permits a max-
imum dispensed output volume (0.003 in.
the factory, preset position.
NOTE:
• Each full turn out represents an addition of
approximately 0.0018 in.
3
).
3
volume output.
3
) This is
FIG. 1
334495E 3
Installation
c
a
b
a
ti24505a
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.
1. Relieve pressure. See Pressure Relief Procedure,
page 3.
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.
FIG. 2
8. Adjust injector volume output. (See Adjustment
Instructions, page 3.)
9. Connect feed lines to lubrication points.
4 334495E
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