Graco 25 Manual

Models

Model Specifications

† = Pump (Pick A or B from Pump Table below).
# = Number of Pumps (Pick letter from Pump Quantity Table below)

Pump Table (†)

1000 PSI (MPa/ bar) Maximum pressure

NOTE: Pump displacement based on SAE30 Oil (SUS @ 100°F (37.78°C) at room temperature.

Pump Quantity (#)

Installation

Component Identification

FIG. 1

Key:

1. Sight feed cover
2. Drip tube
3. Feed regulator
4. Pump mounting screws
5. Metering plunger
6. Pump crosshead
7. Inlet tube
8. Inlet strainer

10. Sight chamber well
11. Discharge plunger (shown at top of stroke)
12. Reservoir
13. Hand Crank
14. Fill cover

16. Drive shaft

18. Sight glass
19. Outlet Valve Metering Circuit

Installation

Grounding

The equipment must be grounded. Grounding reduces the risk of static and electric shock by providing an escape wire for the electrical current due to static build up or in the event of a short circuit.

Installation Procedure

NOTE: Reference letters used in the following instructions refer to Parts or Component Identification.
The lubricator should be solidly mounted and aligned to connect the drive shaft to the proper stroking or rotary motion. This drive motion, through the lubricator drive, should operate the lubricator drive shaft and hand crank shaft between 3 and 60 RPM. There is one pump stroke for every revolution of the hand crank shaft, which is an extension of the drive shaft shaft.

1. Select a mounting surface that will satisfy the following goals:
   • Is able to support the weight of the reservoir and fluid when filled to capacity.
     NOTE: When possible, mount to a surface that experiences little or no vibration.
   • Allows easy access to the lubricator for filling the reservoir and periodic maintenance.
   • The lubricator must be grounded through the mounting bolts.
2. Install reservoir (L) to the mounting surface. Use the mounting diagram to determine location to drill mounting holes.
3. Install bolts through reservoir and mounting holes and tighten securely.
4. Install protective guards around all drive components.
5. Remove fill cap (A) and fill reservoir with new or clean, filtered fluid until it reaches the top of the reservoir gauge glass.

Start Up

NOTE: Reference letters used in the following instructions refer to Component Identification.

1. For initial start-up, prime the pump by removing screw from outlet metering circuit (S) (FIG. 2) and filling the small chamber with oil. Reattach the screw, making sure the spring lines up vertically.
   
2. Adjust the pump for maximum delivery by turning the feed regulator (C) counter- clockwise as indicated by the directional arrow (FIG. 2).
3. Operate pumps at this setting and bleed lubrication lines at the terminal check valve to assure full lubrication.

Feed Rate Regulation

The proper drive shaft shaft RPM is determined from the required maximum and minimum pump feed rates.
Each pumping unit is regulated independently by means of the feed regulator (C). When a pump is correctly set to its required feed rate, the feed rate can still be increased or decreased by the feed regulator (C). In most cases due to the wide adjustment range of the pump units, there will be considerable allowance in the selection of the proper drive shaft speed.

• Turn the feed regulator (C) clockwise to DECREASE the feed.
• Turn the feed regulator (C) counter-clockwise to INCREASE the feed.

Hand Crank Operation

The hand crank (M), located on the end of the lubricator (FIG. 3) is used for starting or for momentarily increasing the lubricant supply while the lubricator is in operation. It operates all feeds at once, but does not affect feed regulation.

Refilling the Reservoir

Remove fill cap (N) and fill reservoir with new or clean, filtered fluid until it reaches the top of the reservoir sight glass (R).

Service

Pressure Relief Procedure

Fluid under pressure can be injected through the skin and cause serious injury. To reduce the risk of injury from injection, splashing fluid or moving parts, follow the Pressure Relief Procedure whenever you:

• are instructed to relieve the pressure,
• check, clean or service any system equipment,

1. Turn off power supply to the lubricator.
2. Open any drain valves in the system.
3. Leave the drain valve open until you are ready to pressurize the system.
4. If you suspect that the pressure is not fully relieved after following the previous steps, using a rag to cover the hose end coupling or a fitting on the fluid line then slowly loosen the coupling or fitting and allow the pressure to be relieved gradually. Then loosen the part completely.

Cleaning

Clean lubricator periodically to eliminate contamination that may have occurred in the fluid.

1. Stop lubricator. Follow the Pressure Relief Procedure before performing any service procedures.
2. Remove all pumping units.
   1. Remove the discharge line connection and the pump mounting screws (D).
      
   2. Loosen the adjacent pump mounting screws (D).
   3. Lift out front end of pump (end with feed regulator screw), pulling it forward and upward at the same time. This will allow the yoke or crosshead to clear the drive shaft and the pump can be lifted out.
      
3. Clean pumps and reservoir by dipping and brushing in a cleaning solvent.
4. Clean all lubricant tubing and check valves thoroughly.

Reassembly

1. Before replacing pump, position yoke down as far as possible.
   
2. Install pump by inserting the back end of the pump (end without the feed regulator screw) in the reservoir first.
   
3. Connect discharge line to pump outlet.
4. Install pump mounting screws (D) and using a wrench, tighten screws securely.
5. Fill reservoir and bleed lubrication lines at terminal check valve to assure full lubrication before putting equipment back into operation.

Troubleshooting

Parts

Ref	Part No.	Description	Qty
7	562949	PUMP, assembly, 0.187 diameter M25	1
	562950	PUMP, assembly, 0.312 diameter M25	1
8		SCREW, 1/4-20X.75 hex	2
9		SCREWS (1-4 pumps)	12
		SCREWS (5-8 pumps)	20
		SCREWS (9-12 pumps)	30
		SCREWS (13-16 pumps)	38
		SCREWS (17-20 pumps)	48
10	557171	COVER, oil, hole	1
11	557149	STRAINER, filter	1
12		PLUG, dry seal, 1/4 nptf	1
13	563923	KIT, sight glass with gasket and nuts	1
16	556690	SIGHTGLASS (4 feed) (1-4 pumps)	1
	556694	SIGHTGLASS (8 feed) (5-8 pumps)	1
	556692	SIGHT GLASS (6 feed) (9-12 pumps)	2
	556694	SIGHT GLASS (8 feed) (13-16 pumps)	2
	556692	SIGHT GLASS (6 feed) (17-20 pumps)	2
	556694	SIGHT GLASS (8 feed) (17-20 pumps)	1
17	556723	GASKET, sight, 4 FD (1-4 pumps)	1
	556725	GASKET, sight, 8 FD (5-8 pumps)	1
	556724	GASKET, sight, 6 FD (9-12 pumps)	2
	556725	GASKET, sight, 8 FD (13-16 pumps)	2
	556724	GASKET, sight, 6 FD (17-20 pumps)	2
	556725	GASKET, sight, 8 FD (17-20 pumps)	1
18	555744	WASHER (1-4 pumps)	2
		WASHER (5-8 pumps)	2
		WASHER (9-12 pumps)	4
		WASHER (13-16 pumps)	4
		WASHER (17-20 pumps)	6
19		SCREW, #10-32 x 1.50 (1-4 pumps)	2
		SCREW, #10-32 x 1.50 (5-8 pumps)	2
		SCREW, #10-32 x 1.50 (9-12 pumps)	4
		SCREW, #10-32 x 1.50(13-16 pumps)	4
		SCREW, #10-32 x 1.50(17-20 pumps)	6
20	557035	PLATE, sight glass	2
21a		RIGHT SIDE direct drive rotary	1
21b		LEFT SIDE direct drive rotary	1
22		LABEL, name, serial number	1
23		LABEL, oil regulating	1
24		LABEL, identification	1
27	557037	PLATE, sight glass (1-4 pumps)	0
		PLATE, sight glass (5-8 pumps)	0
		PLATE, sight glass (9-12 pumps)	1
		PLATE, sight glass (13-16 pumps)	1
		PLATE, sight glass (17-20 pumps)	2
31	557036	PLATE, blank - For quantities see "Blank Plate Quantity"	-
69	16G243	LABEL, safety warning	1

Replacement Danger and Warning labels, tags, and cards are available at no cost.

Blank Plate Quantity

Based on Number of Pumps
(Code column relates to Pump Quantity)

Technical Data

♦ All displacements based on SAE30 oil: SSU @ 100°F (37.78°C) at room temperature.
* Approximate viscosities = SAE 10 = 200 SSU @ 100°F (37.78°C); 600 W = 2000 SSU @ 100°F (37.78°C).

Dimensions

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, 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. If there is static sparking or you feel a shock, stop operation immediately. 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.

	EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury. Do not operate the unit when fatigued or under the influence of drugs or alcohol. Do not exceed the maximum working pressure or temperature rating of the lowest rated system component. See Technical Data in all equipment manuals. Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all equipment manuals. Read fluid and solvent manufacturer's warnings. For complete information about your material, request MSDS from distributor or retailer. Do not leave the work area while equipment is energized or under pressure. Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use. Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manufacturer's replacement parts only. Do not alter or modify equipment. Use equipment only for its intended purpose. Call your distributor for information. Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not kink or over bend hoses or use hoses to pull equipment. Keep children and animals away from work area. Comply with all applicable safety regulations.
	MOVING PARTS HAZARD Moving parts can pinch, cut or amputate fingers and other body parts. Keep clear of moving parts. Do not operate equipment with protective guards or covers removed. Pressurized equipment can start without warning. Before checking, moving, or servicing equipment, follow the Pressure Relief Procedure and disconnect all power sources.
	ENTANGLEMENT HAZARD Rotating parts can cause serious injury. Keep clear of moving parts. Do not operate equipment with protective guards or covers removed. Do not wear loose clothing, jewelry or long hair while operating equipment. Equipment can start without warning. Before checking, moving, or servicing equipment, follow the Pressure Relief Procedure and disconnect all power sources.
	PERSONAL PROTECTIVE EQUIPMENT You must wear appropriate protective equipment when operating, servicing, or when in the operating area of the equipment to help protect you from serious injury, including eye injury, hearing loss, inhalation of toxic fumes, and burns. This equipment includes but is not limited to: Protective eye wear, and hearing protection. Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer.

Graco Information

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 reserves the right to make changes at any time without notice.

Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. AND SUBSIDIARIES
P.O. BOX 1441
MINNEAPOLIS MN 55440-1441
USA
www.graco.com