Graco 334390A User Manual
Repair/Parts
Husky™ 1050HP 2
Air-Operated
1–inch high-pressure pump with modular air valve for fluid transfer applications. For professional use
only.
Important Safety Instructions
Read all warnings and instructions in this manual and in your
Operation manual. Save these instructions.
Maximum F
200 psi (1
Maximum A
100 psi (
luid Working Pressure:
.38MPa,13.8bar)
ir Input Pressure:
0.69 MPa, 6.9 bar)
Diaphragm Pump
:1
334390A
EN
PROVEN QUALITY. LEADING TECHNOLOGY.
Contents
Related Manuals ................................................ 2
Ordering Information........................................... 3
Configuratio
Warnings ........................................................... 5
Troubleshooting.................................................. 8
Repair................................................................ 10
Pressure Re
Replace Com
Replace Se
Replace Co
Related
Manual No. Description
334014
n Number Matrix ............................... 4
lief Procedure............................ 10
plete Air Valve ......................... 10
als or Rebuild Air Valve............... 12
mplete High/Low Valve ............... 14
Manuals
Husky 1
050HP 2:1 Air-Operated Diaphragm Pump, Operation
Replace Seals or Rebuild the High/Low
Valve ............................................. 15
Check Valve Repair ..................................... 16
Diaphragm and Center Section Repair ........... 17
Torque Instructions ............................................. 21
Parts.................................................................. 22
Technical Data ...................................................40
Fluid Temperature Range.................................... 41
Graco Stan
dard Husky Pump Warranty................ 42
2
334390A
Ordering Inform
ation
Ordering Info
To Find Your Ne
1. Visit www.graco.com.
2. Click on Where to Buy and use the Distributor
Locator.
To Specify t
he Configuration of a New
rmation
arest Distributor
Pump
Please ca
ll your distributor.
To Order Replacement Parts
Please c
all your distributor.
Distributor N
1. To find part numbers for replacement parts:
a. Use the 20–di
on the pump.
b. Use the Confi
next page to
described b
c. Refer to th
Parts/Kit
reference
ordering i
2. Please ca
ote
git number from the ID plate
guration Number Matrix on the
understand which parts are
y each digit.
e main Parts illustration and to the
s Quick Reference. Follow the page
s on these two pages for further
nformation, as needed.
ll Graco Customer Service to order.
334390A 3
Configuration Nu
mber Matrix
Configuration
Check the identification plate (ID) for the 20–digit
Configuration Number of your pump. Use the
following matrix to define the components of your
pump.
Sample Configuration Number:
Number Matrix
1050HP A01A A1 SS SP SP
Pump Model
Pump
1050HP
Aluminum
Check Valve Seats Check Valve Balls
316 Stainless Steel
SS
Center Section
and Air Valve
Center Section and Air Valve
Material
Aluminum
Manifolds Seats
A01A
SP
Santoprene
Air Valve
Standard
Balls Diaphragms
Manifolds
A1
A2
S1
S2
Diaphragm Material
SP
PT
Manifold
O-Rings
Aluminum, standard ports, npt
Aluminum, standard ports, bsp
Stainless steel, standard ports, npt
Stainless steel, standard ports, bsp
Manifold O-Rings
Santoprene
PT
PTFE
4
334390A
Warnings
Warnings
The following
exclamation p
risks. When th
Warnings. Pr
the body of th
warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The
oint symbol alerts you to a general warning and the hazard symbols refer to procedure-specific
ese symbols appear in the body of this manual or on warning labels, refer backtothese
oduct-specific hazard symbols and warnings not covered in this section may appear throughout
is manual where applicable.
WARNING
FIRE AND EXPLOSION HAZARD
Flammable
prevent fir
• Use equipment only in well ventilated area.
• Eliminat
plastic d
• 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
• 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 op
equipm
• 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.
fumes, such as solvent and paint fumes, in work area can ignite or explode. To help
e and explosion:
e all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and
rop cloths (potential static arc).
ll equipment in the work area. See Grounding instructions.
eration immediately if static sparking occurs or you feel a shock. Do not use
ent until you identify and correct the problem.
PRESS
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
• Tighten all fluid connections before operating the equipment.
•Che
334390A 5
URIZED EQUIPMENT HAZARD
cleaning, checking, or servicing equipment.
ck hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.
Warnings
WARNING
EQUIPMENT MISUSE HAZARD
Misuse can ca
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not exceed
system compo
• 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
• 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
• 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 ki
• Keep children and animals away from work area.
• Comply with all applicable safety regulations.
THERMA
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.
use death or serious injury.
the maximum working pressure or temperature rating of the lowest rated
nent. See Technical Data in all equipment manuals.
l equipment and follow the Pressure Relief Procedure when equipment is not in use.
all equipment is rated and approved for the environment in which you are using it.
nk or over bend hoses or use hoses to pull equipment.
L EXPANSION HAZARD
• Open a valve to relieve the fluid expansion during heating.
• Replace hoses proactively at regular intervals based on your operating conditions.
TIC PARTS CLEANING SOLVENT HAZARD
PLAS
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.
6 334390A
WARNING
TOXIC FLUID OR FUMES HAZARD
Warnings
Toxic fluids o
inhaled, or s
• Read MSDSs to know the specific hazards of the fluids you are using.
• Route exhaus
the air.
• Store hazardous fluid in approved containers, and dispose of it according to applicable
guidelines.
BURN HAZAR
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
• Respirators, protective clothing, and gloves as recommended by the fluid and solvent
manufacturer.
r fumes can cause serious injury or death if splashed in the eyes or on skin,
wallowed.
t away from work area. If diaphragm ruptures, fluid may be exhausted into
D
ive eyewear, and hearing protection.
334390A
7
Troubleshootin
g
Troubleshooting
Problem Cause Solution
Pump cycles b
Pump cy
ure at stall.
press
Pump will not cycle, or cycles once
and stops.
ut will not prime.
cles at stall or fails to hold
Pump is running too fast, causing
cavitation before prime.
Check valv
wedged in s
Seat severely worn.
Outlet or inlet clogged.
Inlet or outlet valve closed.
Inlet fittings or manifolds loose.
Manifold o-rings damaged.
Worn check valve balls, seats, or
o-rings.
Air valve is stuck or dirty. Disassemble and clean air valve.
Chec
wedg
Pilot valve worn, damaged, or
plugged.
Air valve gasket damaged. Replace gasket.
pensing valve clogged.
Dis
e ball severely worn or
eat or manifold.
k valve ball severely worn and
ed in seat or manifold.
Reduce air in
inlet air wit
Replace ball and seat.
Replace ball and seat.
Unclog.
Open.
Tighten.
Replac
Replace.
Use filtered air.
Replace ball and seat.
Replace pilot valve.
ieve pressure and clear valve.
Rel
let pressure or restrict
h a needle valve.
eo-rings.
ump operates erratically.
P
High/Low valve shift lever is not fully
seated into the High or Low position.
Clogged suction line.
ticky or leaking check valve balls.
S
Diaphragm 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.
Exhaust muffler icing.
Shift lever all the way into either
High or Low position.
spect; clear.
In
lean or replace.
C
Use drier air supply.
8 334390A
Problem Cause Solution
Troubleshootin
g
Air bubbles in
Exhaust ai
pumped.
Moisture in exhaust air. High inlet air humidity. Use drier air supply.
Pump exh
stall.
Pump leaks air externally.
fluid.
r contains fluid being
austs excessive air at
Suction line i
Diaphragm ruptured. Replace.
Loose manifo
o-rings.
Pump cavitation.
Loose diaphragm shaft bolt.
Diaphragm ruptured. Replace.
Loose diaphragm shaft bolt.
Worn air v
Damaged air valve gasket. Replace gasket.
Damaged pilot valve. Replace pilot valves.
Worn shaft seals or bearings. Replace shaft seals or bearings.
lve or fluid cover screws loose.
Air va
Diaphragm damaged. Replace diaphragm.
Air valve gasket damaged. Replace gasket.
High/Low valve shift lever is not fully
seated into the High or Low position.
s loose.
lds, damaged seats or
alve cup or plate.
Tighten.
Tighten mani
seats or o-ri
Reduce pump speed or suction lift.
Tighten.
Tighten or
Replace c
Tighten.
Shift the lever all the way into either
High or Low position.
fold bolts or replace
ngs.
replace.
up and plate.
p leaks fluid externally from
Pum
nts.
joi
mp will operate in the Low
Pu
essure setting, but will not operate
pr
theHighpressuresetting.
in
se manifold screws or fluid cover
Loo
ews.
scr
Manifold o-rings worn out.
The hoses for the High/Low valve
are not installed correctly.
hten manifold screws or fluid
Tig
er screws.
cov
Replace o-rings.
Install hoses as shown in the figure
on page 10.
334390A 9
Repair
Repair
Pressure Relief Procedure
Follow the Pressure Relief Procedure
whenever you see this symbol.
This equipment stays pressurized until pressure
is relieved manually. To help prevent serious
injury from pressurized fluid, such as splashing
in the eyes or on skin, follow the Pressure Relief
Procedure when you stop pumping and before you
clean, check, or service the equipment.
1. Shut off the air supply to the pump.
2. Open the dispensing valve, if used.
3. Shift the High/Low pressure lever back and forth
two times. Leave the lever in the “Low” position
as shown in Fig. 1.
Replace Complete Air Valve
Follow these
Replacement
1. Stop the pump. Follow the Pressure Relief
Procedure in the previous section.
2. Disconnect the main air line.
3. Remove four screws (217). Remove the air valve
(212). Remove the six o-rings (208, 209, and
210).
4. To repair the air valve, go to Disassemble the
Air Valve, step 2, in the next section. To install a
replacement air valve, continue with step 5.
5. Align the new o-rings (208, 209, and 210) on the
High/Low manifold, then attach the air valve.
Apply thread lubricant and torque screws (217)
to 75–85 in-lb (8 to 9 N•m).
6. Reconnect the main air line.
instructions to install Air Valve
24W897.
ure 1 High/Low Pressure Lever
Fig
4. Ope
nthefluiddrainvalve(installedonthe
tem) to relieve all fluid pressure. Have a
sys
tainer ready to catch the drainage.
con
10 334390A
Repair
Apply thread lu
before assembl
Torque screws to 75–85 in-lb (8 to
9N•m).
bricant to threads
y.
334390A
11
Repair
Replace Seals
Follow these instructions to service the air valve with
one of the available repair kits. Air Valve Seal Kit
parts are marked with a †. Air Valve Repair Kit parts
are marked with a ♦. Air Valve End Cap Kit parts
are marked with a ‡. Kit 24W952 also is available to
replace the 6 o-rings between the air valve and the
High/Low manifold.
or Rebuild Air Valve
Disassemble the Air Valve
1. Perform steps 1-3 under
Replace Complete Air Valve, page 10.
2. Use a T8 Torx screwdriver to remove two
screws (309). Remove the valve plate (305), cup
assembly (312-314), spring (311), and detent
assembly (303).
3. Pull the cup (313) off of the base (312). Remove
the o-ring (314) from the cup.
4. Remove the retaining ring (310) from each end
of the air valve. Use the piston (302) to push
the end cap (307) out of one end. Remove the
u-cup seal (308) from the piston. Pull the piston
out of the end and remove the other u-cup seal
(308). Remove the other end cap (307) and the
end cap o-rings (306).
5. Remove the detent cam (304) from the air valve
housing (301).
1. Use all parts in the repair kits. Clean other parts
and inspect for damage. Replace as needed.
2. Grease the detent cam (304♦) and install into
housing (301).
3. Grease the u-cups (308♦†) and install on the
piston with lips facing toward the center of the
piston.
Lips face
down.
Lips face
up.
4. Grease both ends of the piston (302♦) and the
housing bore. Install the piston in the housing
(301), with the flat side toward the cup (313♦).
Be careful not to tear u-cups (308♦†) when
sliding piston into housing.
5. Grease new o-rings (306♦†‡) and install on the
end caps (307‡). Install the end caps into the
housing.
Reassemble the Air Valve
NOTE: Apply lithium-based grease when instructed
to grease. Order Graco PN 111920.
2
1
6. Install a retaining ring (310‡) on each end to hold
end caps in place.
334390A
7. Grease and install the detent assembly (303♦)
into the piston. Install the o-ring (314♦) on the
cup (313♦). Apply a light film of grease to the
outsidesurfaceoftheo-ringandtheinside
mating surface of the base (312♦).
Orient the end of the base that has a magnet
toward the end of the cup that has the larger
cutout. Engage the opposite end of the parts.
Leave the end with the magnet free. Tilt the base
toward the cup and fully engage the parts, using
care so that the o-ring remains in place. Install
the spring (311♦) onto the protrusion on the cup.
Align the magnet in the base with the air inlet and
install the cup assembly.
Repair
8. Grease the cup side and install the valve plate
(305♦). Align the small hole in the plate with the
air inlet. Tighten the screws (309♦†) to hold it
in place.
9. Follow steps 5–6 under
Replace Complete Air Valve, page 10 to replace
the seals and reattach the air valve.
Apply lithiumbased grease.
U-cup lips must
face piston.
Apply lithiumbased grease to
contact surface.
Air inlet.
334390A 13
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