Graco Husky 15120 Use and care manual

Repair/Parts
Husky™ 15120 Air-Operated
Diaphragm Pump3A2889A
EN
Polypropylene or PVDF pumps for fluid transfer applications, including high viscosity materials. For
professional use only.
Not for use in European explosive atmosphere locations.
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
Maximum Working Pressure: 125 psi
(0.86 MPa, 8.6 bar)
PROVEN QUALITY. LEADING TECHNOLOGY.

Contents
Warnings ........................................................... 3
Ordering Information........................................... 6
Related Manuals ................................................ 6
Configuration Number Matrix............................... 7
Troubleshooting.................................................. 8
Notes................................................................. 10
Repair................................................................ 11
Pressure Relief Procedure............................ 11
Replace Complete Air Valve ......................... 11
Replace Seals or Rebuild Air Valve............... 12
Check Valve Repair ..................................... 14
Diaphragm and Center Section Repair ........... 15
Torque Instructions ............................................. 19
Parts.................................................................. 20
Accessories........................................................ 31
Technical Data ...................................................32
Graco Standard Husky Pump Warranty................ 34
23A2889A

Warnings
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 backtothese
Warnings. Product-specific hazard symbols and warnings not covered in this section may appear throughout
the body of this manual where applicable.
WARNING
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help
prevent fire and explosion:
• Use equipment only in well ventilated area.
• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and
plastic drop cloths (potential static arc).
• Keep work area free of debris, including solvent, rags and gasoline.
• Do not plug or unplug power cords, or turn power or light switches on or off when flammable
fumes are present.
•Grounda
ll equipment in the work area. See Grounding instructions.
• Use only grounded hoses.
• Hold gun firmly to side of grounded pail when triggering into pail. Do not use pail liners unless
they are antistatic or conductive.
•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.
• Route exhaust away from all ignition sources. If diaphragm ruptures, fluid may be exhausted
with air.
Static charge may build up on plastic parts during cleaning and could discharge and ignite
flammable vapors. To help prevent fire and explosion:
• Clean plastic parts only in well ventilated area.
• Do not clean with a dry cloth.
• Do not operate electrostatic guns in equipment work area.
PRESSURIZED EQUIPMENT HAZARD
Fluid from the equipment, leaks, or ruptured components can splash in the eyes or on skin
and cause serious injury.
• Follow the Pressure Relief Procedure when you stop spraying/dispensing and before
cleaning, checking, or servicing equipment.
• Tighten all fluid connections before operating the equipment.
•Ch
eck hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.
3A2889A 3

Warnings
WARNING
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.
•Turnoffal
l 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. Alterations or modifications may void agency approvals
and create safety hazards.
•Makesure
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.
THERMAL EXPANSION HAZARD
Fluids subjected to heat in confined spaces, including hoses, can create a rapid rise in pressure
due to the thermal expansion. Over-pressurization can result in equipment rupture and serious
injury.
• Open a valve to relieve the fluid expansion during heating.
• Replace hoses proactively at regular intervals based on your operating conditions.
PLASTIC PARTS CLEANING SOLVENT HAZARD
Many solvents can degrade plastic parts and cause them to fail, which could cause serious
injury or property damage.
•Use
only compatible water-based solvents to clean plastic structural or pressure-containing
parts.
•SeeTechnical Data in this and all other equipment instruction manuals. Read fluid and
solvent manufacturer’s MSDSs and recommendations.
43A2889A

Warnings
WARNING
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.
• Route exhaust away from work area. If diaphragm ruptures, fluid may be exhausted into
the air.
• Store hazardous fluid in approved containers, and dispose of it according to applicable
guidelines.
BURN HAZARD
Equipment surfaces and fluid that’s heated can become very hot during operation. To avoid
severe burns:
• Do not touch hot fluid or equipment.
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:
•Protect
ive eyewear, and hearing protection.
• Respirators, protective clothing, and gloves as recommended by the fluid and solvent
manufacturer.
3A2889A 5

Ordering Information
Ordering Information
To Find Your Nearest Distributor
1. Visit www.graco.com.
2. Click on Where to Buy and use the Distributor
Locator.
To Specify the Configuration of a New
Pump
Please call your distributor.
OR
Use the Online Husky Selector Tool on the Process
Equipmentpage at www.graco.com.
To Order Replacement Parts
Please call your distributor.
Distributor Note
1. To find part numbers for new pumps or kits, use
the Online Husky Selector Tool.
2. To find part numbers for replacement parts:
a. Use the 20–digit number from the ID
plate on the pump. If you only have
the Graco 6–digit part number, use the
Online Husky Selector Tool to find the
corresponding 20–digit number.
b. Use the Configuration Number Matrix on the
next page to understand which parts are
described by each digit.
c. Refer to the main Parts illustration and to the
Parts/Kits Quick Reference. Follow the page
references on these two pages for further
ordering information, as needed.
3. Please call Graco Customer Service to order.
Related Manuals
Manual
Number
Title
3A2888 Husky 15120 Air-Operated Diaphragm
Pump, Operation
63A2889A

Configuration Number Matrix
Configuration Number Matrix
Check the identification plate (ID) for the Configuration Number of your pump. Use the following matrix to
define the components of your pump.
CONFIGURATION NO.PART NO. SERIAL NO.
SERIESDATE CODE MAX WPR PSI-bar
Graco Inc., P.O. Box 1441
Mpls, MN 55440 USA
MADE IN
Sample Configuration Number: 15120P-P01AP1PPPTFKPT
15120P P01A P1 PP PT FK PT
Pump Model Center
Section and
Air Valve
Fluid Covers
and Manifolds
Seats Balls Diaphragms Manifold and Seat Seals
Pump Center Section and Air
Valve Material
For Use With Fluid Covers and Manifolds
15120P
Polypropylene
P01A Polypropylene Standard
Diaphragms
P1 Polypropylene, Center Flange,
ANSI/DIN
15120F
PVDF
P01G Polypropylene Overmolded
Diaphragms
P2 Polypropylene, End Flange,
ANSI/DIN
F2 PVDF, End Flange, ANSI/DIN
Seat Material Ball Material Diaphragm Material Manifold and Seat
Seal Material
PP Polypropylene FK FKM FK FKM PT PTFE
PV PVDF PT PTFE PO PTFE/EPDM Overmolded
SP Santoprene SP Santoprene PT PTFE/Santoprene 2–Piece
SS Stainless
Steel
SP Santoprene
3A2889A 7

Troubleshooting
Troubleshooting
Problem Cause Solution
Pump is running too fast, causing
cavitation before prime.
Reduce air inlet pressure.
Check valve ball severely worn or
wedged in seat or manifold.
Replace ballandseat.
Seat severely worn. Replace ball and seat.
Outlet or inlet clogged. Unclog.
Inlet or outlet valve closed. Open.
Inlet fittings or manifolds loose. Tighten.
Pump cycles but will not prime.
Manifold o-rings damaged. Replace o-rings.
Pump cycles at stall or fails to hold
pressure at stall.
Worn check valve balls, seats, or
o-rings.
Replace.
Air valve is stuck or dirty. Disassemble and clean air valve.
Use filtered air.
Check valve ball severely worn and
wedged in seat or manifold.
Replace ball and seat.
Pilot valve worn, damaged, or
plugged.
Replace pilot valve.
Air valve gasket damaged. Replace gasket.
Pump will not cycle, or cycles once
and stops.
Dispensing valve clogged. Relieve pressure and clear valve.
Clogged suction line. Inspect; clear.
Sticky or leaking check valve balls. Clean or replace..
Diaphragm (or backup) ruptured. Replace.
Restricted exhaust. Remove restriction.
Pilot valves damaged or worn. Replace pilot valves.
Air valve damaged. Replace air valve.
Air valve gasket damaged. Replace air valve gasket.
Air supply erratic. Repair air supply.
Pump operates erratically.
Exhaust muffler icing. Use drier air supply.
83A2889A

Troubleshooting
Problem Cause Solution
Suction line is loose. Tighten.
Diaphragm (or backup) ruptured. Replace.
Loose manifolds, damaged seats or
o-rings.
Tighten manifold bolts or replace
seats or o-rings.
Pump cavitation. Reduce pump speed or suction lift.
Air bubbles in fluid.
Loose diaphragm shaft bolt. Tighten.
Diaphragm (or backup) ruptured. Replace. Exhaust air contains fluid being
pumped. Loose diaphragm shaft bolt. Tighten or replace.
Moisture in exhaust air. High inlet air humidity. Use drier air supply.
Worn air valve cup or plate. Replace cup and plate.
Damaged air valve gasket. Replace gasket.
Damaged pilot valve. Replace pilot valves.
Pump exhausts excessive air at
stall.
Worn shaft seals or bearings. Replace shaft seals or bearings.
Air valve or fluid cover screws loose. Tighten.
Diaphragm damaged. Replace diaphragm.
Pump leaks air externally.
Air valve gasket damaged. Replace gasket.
Loose manifold screws or fluid cover
screws.
Tighten manifold screws or fluid
coverscrews.
Pump leaks fluid externally from
joints.
Manifold o-rings worn out. Replace o-rings.
3A2889A 9

Notes
Notes
10 3A2889A