Craco Fire-Ball 425 Operation manual

308777M
EN
Instructions - Parts List
75:1 Fire-Ball®
425 Pumps
For pumping non-corrosive and non-abrasive greases and lubricants only. For
professional use only.
Model No. 239729, Series B
120 lb (55 kg) drum length
Model No. 239730, Series B
400 lb (180 kg) drum length
Model No. 239731, Series B
stubby length
100 psi (0.7 MPa, 7 bar) Maximum Air Input Pressure
7500 psi (51.7 MPa, 517 bar) Maximum Working
Pressure
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
This pump is designed to be used only in pumping
non-corrosive and non-abrasive oils and lubricants.
Any other use of the pump can cause unsafe
operating conditions and component rupture, which
can result in fluid injection, other serious injury, or
fire or explosion.

2308777M
Contents
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Mounting the Pump . . . . . . . . . . . . . . . . . . . . . . 5
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . 5
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pressure Relief Procedure . . . . . . . . . . . . . . . . . 7
Startup and Adjustment . . . . . . . . . . . . . . . . . . . 7
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Displacement Pump Repair . . . . . . . . . . . . . . . . 9
Air Motor and Throat Service . . . . . . . . . . . . . . 10
Throat Packing Service . . . . . . . . . . . . . . . . . . . 12
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Mounting Hole Layout . . . . . . . . . . . . . . . . . . . . . . 17
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 18

Warnings
308777M 3
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama-
tion 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-spe-
cific hazard symbols and warnings not covered in this section may appear throughout the body of this manual
where applicable.
WARNING
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 gaso-
line.
• 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.

Warnings
4308777M
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 manu-
facturer’s replacement parts only.
• Do not alter or modify equipment. Alterations or modifications may void agency approvals and cre-
ate safety hazards.
• Make sure all equipment is rated and approved for the environment in which you are using it.
• 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.
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or
swallowed.
• Read MSDSs to know the specific hazards of the fluids you are using.
• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.
• Always wear chemically impermeable gloves when spraying, dispensing, or cleaning equipment.
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 equip-
ment, follow the Pressure Relief Procedure and disconnect all power sources.
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
WARNING

Installation
308777M 5
Installation
Mounting the Pump
• Selection a convenient location for the equipment
to ensure easy operator access to the pump air
controls, sufficient room to change supply contain-
ers, and a secure mounting platform.
• If you are mounting the pump directly on the supply
tank, position the pump so its intake valve is no
more than 1 inch (25 mm) from the bottom of the
container. Mount the pump to the cover or other
suitable mounting device.
Grounding
Be sure to ground all of this equipment:
Pump: Use a ground wire and clamp as shown in FIG.
1. Remove the ground screw (Z) and insert through the
eye of the ring terminal at end of ground wire (Y). Fas-
ten the screw back onto the pump and tighten securely.
Connect the other end of the wire to a true earth
ground. To order a ground wire and clamp, order Part
No. 222011.
Air and fluid hoses: Use only electrically conductive
hoses.
Air compressor: Follow manufacturer’s recommenda-
tions.
Dispensing valve: Ground through connection to a
properly grounded fluid hose and pump.
Object being dispensed to: Follow your local code.
Solvent pails used when flushing: Follow your local
code. use only metal pails, which are conductive,
placed on a ground surface. Do not place the pail on a
non-conductive surface, such as paper or cardboard,
which interrupts the grounding continuity.
To maintain ground continuity when flushing or
relieving pressure: Hold a metal part of the dispensing
valve firmly to the side of a grounded metal pail, then
trigger the gun.
Typical Installation
Mount the pump to suit the type of installation planned.
Very heavy lubricants may require an inductor plate.
See Dimensions and Mounting Hole Layout on page 17.
Install the air line accessories in the approximate order
shown in FIG. 2. Install a bleed-type master air valve (B)
within easy reach of the pump, upstream from the air
regulator (E). Install an air filter (C) to remove harmful
dirt and moisture from your compressed air supply. For
automatic air motor lubrication, install an air line oiler
(D) close to the pump air inlet. Install and air regulator
(E) to control the pump speed.
The installation shown in FIG. 2 is only a guide for
selecting and installing system components and acces-
sories. Contact your Graco distributor for assistance in
designing a system to suit your particular needs.
Mount the pump securely so that it cannot move
around during operation. Failure to do so could
result in personal injury or equipment damage.
The equipment must be grounded to reduce the risk
of static sparking and electric shock. Electric or
static sparking can cause fumes to ignite or explode.
Improper grounding can cause electric shock.
Grounding provides an escape wire for the electric
current.
FIG. 1