background image

8

307013

Operation

WARNING

Moving parts can pinch or amputate your fingers or
other body parts. When air is supplied to the motor,
the air motor piston (located behind the air motor
shield) moves. Therefore, never operate the pump
with the ar motor shield removed.

Flush the Pump Before Using

The pump is tested with lightweight motor oil, which is
left in to protect the pump parts. If the fluid you are
pumping may be contaminated by the oil, flush out the
oil with a compatible solvent before using the pump. If
the pump is being used to supply a circulating system,
allow the solvent to circulate until the pump is thor-
oughly flushed.

WARNING

For your safety, read the warning section, FIRE
AND EXPLOSION HAZARD
 on page 3 before
flushing, and follow all instructions given there.

Starting and Adjusting the Pump

WARNING

To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 7.

See the Typical Installation on page 5. Be sure the air
regulator (E) and bleed-type master air valve (D) are
closed. Do not install the spray tip yet.

Connect a suction hose (M) to the pump’s fluid inlet.
Hold a metal part of the spray gun (L) firmly to the side
of a grounded metal pail and hold the trigger open.
Then open the pump’s bleed-type master air valve (D).
Now slowly open the air regulator until the pump starts,
about 20 psi (140 kPa, 1.4 bar).

Cycle the pump slowly until all the air is pushed out,
and fluid is flowing from the gun in a steady stream.
Release the spray gun trigger and lock the trigger
safety. The pump should stall against pressure when
the trigger is released.

Relieve the pressure, then install the spray tip in the
gun.

In a direct supply system, with the pump and lines
primed and with adequate air pressure and volume
supplied, the pump will start and stop as the spray gun
is opened and closed. In a circulating system, the
pump will run continuously and will speed up or slow
down as supply demands until the air supply is shut
off.

Use an adequately sized air regulator (E) to control the
pump speed and the fluid pressure. Always use the
lowest air pressure necessary to get the desired
results. Higher pressures waste fluid and cause pre-
mature wear of the pump packings and spray tip.

Keep the packing nut/wet-cup (S) half filled with Graco
Throat Seal Liquid (TSL) or compatible solvent, to help
prolong the packing life. Adjust the packing nut weekly
with the wrench (supplied) so it is just tight enough to
prevent leakage; do not overtighten. Always relieve
the pressure 
before adjusting the packing nut.

Never allow the pump to run dry of the fluid being
pumped. A dry pump will quickly accelerate to a high
speed, possibly damaging itself. A pump runaway
valve (B), which shuts off the air supply to the pump if
the pump accelerates beyond the pre-set speed, is
available. See the Typical Installation on page 5. If
your pump accelerates quickly, or is running too fast,
stop it immediately and check the fluid supply. If the
supply container is empty and air has been pumped
into the lines, refill the container and prime the pump
and the lines with fluid, or flush and leave it filled with a
compatible solvent. Be sure to eliminate all air from the
fluid system.

Shutdown and Care of the Pump

For overnight shutdown, relieve the pressure. Always
stop the pump at the bottom of the stroke to prevent
the fluid from drying on the exposed displacement rod
and damaging the throat packings.

Always flush the pump before the fluid dries on the
displacement rod. Never leave water or water-based
fluid in the pump overnight. First, flush with water or a
compatible solvent, then with mineral spirits. Relieve
the pressure, 
but leave the mineral spirits in the pump
to protect the parts from corrosion.

Check Valve Adjustment

Refer to the separate displacement pump manual
307728 for check valve adjustment information.

Содержание Ratio King 224434

Страница 1: ...m Air Input Pressure Model 224434 Series A Stubby Size with Standard Air Motor and Severe Duty Displacement Pump with leather packings Severe Duty Displacement Pumps have an abrasion and corrosion resistant displacement rod and sleeve Refer to the Technical Data in the separate displace ment pump manual 307728 for Wetted Parts informa tion GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 ECOPYRIGH...

Страница 2: ...d leaks with your hand body glove or rag D Do not blow back fluid this is not an air spray system D Always have the tip guard and the trigger guard on the spray gun dispensing valve when spraying dispensing D Be sure the gun trigger safety operates before spraying D Lock the gun valve trigger safety when you stop spraying D Follow the Pressure Relief Procedure on page 7 whenever you are instructed...

Страница 3: ...injury D This equipment is for professional use only D Read all the instruction manuals tags and labels before operating the equipment D Use the equipment only for its intended purpose If you are uncertain about usage call your Graco distributor D Do not alter or modify this equipment Use only genuine Graco parts and accessories D Check the equipment daily Repair or replace worn or damaged parts i...

Страница 4: ...unding through connection to a properly grounded fluid hose and pump D Fluid supply container according to local code D Object being sprayed according to local code D All solvent pails used when flushing according to local code Use only metal pails which are conduc tive Do not place the pail on a non conductive surface such as paper or cardboard which inter rupts grounding continuity D To maintain...

Страница 5: ... Air Regulator Air Line Filter Bleed Type Master Air Valve for accessories Air Supply Hose Fluid Drain Valve required Fluid Supply Hose Spray Gun Fluid Suction Hose Exhaust Port for Muffler 1 1 4 npt 16 Exhaust Holes Wall Bracket Packing Nut Wet Cup Ground Wire required Typical Installation J A B C D E F G H K L M N Y P PLUG WHEN EXHAUSTING THROUGH MUFFLER R S ...

Страница 6: ...uid hose H to the pump s 1 npt f fluid outlet using a suitable adapter Connect a fluid suction hose and tube M to the pump s 1 1 2 npt f fluid intake Use an electrically conductive 3 4 in ID minimum air hose H to supply air to the pump Air Line Accessories Install the following accessories in the order shown in the Typical Installation using adapters as necessary D An air line lubricator C provide...

Страница 7: ...air to the pump 3 Close the bleed type master air valve required in your system 4 Unlock the trigger safety 5 Hold a metal part of the gun valve firmly to the side of a grounded metal pail and trigger the gun valve to relieve pressure 6 Lock the trigger safety 7 Open the drain valve required in your system having a container ready to catch the drainage 8 Leave the drain valve open until you are re...

Страница 8: ...he spray gun is opened and closed In a circulating system the pump will run continuously and will speed up or slow down as supply demands until the air supply is shut off Use an adequately sized air regulator E to control the pump speed and the fluid pressure Always use the lowest air pressure necessary to get the desired results Higher pressures waste fluid and cause pre mature wear of the pump p...

Страница 9: ...om pump and fluid lines Air in displacement pump and hose Reprime Check valves need adjustment Adjust see manual 307728 Packing nut too tight or too loose Adjust see manual 307728 Worn throat packings Replace see manual 307728 Pump operates but output low on down stroke Held open or worn intake valve Clear service see manual 307728 Pump operates but output low on up stroke Held open or worn fluid ...

Страница 10: ...ns 5 Refer to instruction manual 306968 supplied for air motor service instructions Reconnecting the Displacement Pump 1 Orient the pump s fluid outlet A to the air motor s air inlet B as was noted in step 2 under Discon necting the Displacement Pump Position the displacement pump 2 on the tie rods 31 2 Place the coupling nut 32 on the connecting rod T Insert the couplers 33 into the coupling nut ...

Страница 11: ...11 307013 Service 03293 Fig 2 1 2 28 31 26 A B S T 1 2 Torque to 40 50 ft lb 54 68 NSm Torque to 145 155 ft lb 195 210 NSm 1 2 1 Model 224434 shown 32 33 ...

Страница 12: ... Includes items 1 33 Ref No Part No Description Qty 1 207647 AIR MOTOR See Manual 306968 for parts 1 2 224435 DISPLACEMENT PUMP ASSY See Manual 307728 for parts 1 26 101712 NUT lock 5 8 11 3 28 102176 WRENCH 1 31 167911 ROD tie 7 178 mm shoulder to shoulder 3 32 186925 NUT coupling 1 33 184129 COUPLING 1 03293 1 2 28 31 26 32 33 ...

Страница 13: ...13 307013 Notes ...

Страница 14: ...1079 5 mm 533 4 mm 3 4 npt f AIR INLET 1 npt f FLUID OUTLET 1 1 2 npt f FLUID INTAKE See 306968 for Air Motor Dimensional Drawing WEIGHT 110 lb 50 kg 1 875 48 mm FOR OUTLET RISER TUBE 3 712 94 mm 3 464 88 mm 4 0 102 mm 3 712 94 mm 4 0 102 mm 5 8 11 UNC 3 FOR PUMP ATTACHMENT 0 44 11 1 mm DIA 4 01838 ...

Страница 15: ... and operating air pressure psi MPa bar 1 Locate desired flow along bottom of chart 2 Follow vertical line up to intersection with selected fluid outlet pressure curve black Follow left to scale to read fluid outlet pressure To find Pump Air Consumption m min or scfm at a specific fluid flow lpm gpm and air pressure psi MPa bar 1 Locate desired flow along bottom of chart 2 Read vertical line up to...

Страница 16: ...h of warranty shall be as set forth above The buyer agrees that no other remedy including but not limited to incidental or consequential damages for lost profits lost sales injury to person or property or any other incidental or consequential loss shall be available Any action for breach of warranty must be brought within two 2 years of the date of sale Graco makes no warranty and disclaims all im...

Отзывы: