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PN 97999-1481
LM2203A-X-C4Page4of4
PLACING INTO SERVICE
AIR AND LUBRICATION REQUIREMENTS
Filteredair willhelp extendthe life of thepump, allowingthe pumpto op-
erate more efficiently and yield longer service life to moving parts and
mechanisms.
• Installan airlinefiltertoprovidegoodqualityclean anddryair.Install
it up stream from the regulator.
• Use anair regulatoron theair supplyto controlthe pump cycle rate.
Install the regulator as close as possible to the pump.
• Inmostinstallations,lubricationisnotrequired. Ifthe pumpneeds to
havelubrication,installanairlinelubricatorand supplyitwith agood
grade of non-detergent oil or other lubricant compatible with Nitrile
seals and set at a rate not to exceed one drop per minute.
INSTALLATION
• Mount and secure the pump as required for the application.
• Attach a ground wire from the pump ground screw to a suitable
ground.
• Connectafluidhosetothepumpoutlet.Inmostcasesapipesealant
should be used on thread connection. Tighten all fittings. Use cau-
tion not to damage threads.
OPERATION
START-UP
1. Turn the air regulator to “0” pressure setting.
2. Immerse the lower pump end into the material.
3. Open the dispensing device.
4. Startthe pumpcycling slowly byraisingthe pressureto 20- 30p.s.i.
(1.4 - 2.1 bar).
5. Close the dispensing device. Allow the pump to stall and build line
pressure. Checkfor anyleaksand tightenfittingsas needed.Adjust
pressure as required for the application.
SHUTDOWN
• Disconnecttheairsupplyfromthepumpifitistobeinactivefora few
hours. Open the dispensing device to relieve line pressure.
SERVICE
PUMP DISASSEMBLY / REASSEMBLY
NOTICE: The unique design of this pump allows for quick basic pump
service without total removal from the drum (refer to the views below).
DISASSEMBLY
- Allthreadsarerighthand.Refertofigure2.These
proceduresarefortheinstallationofrepairkitparts.Disconnectair
supply and relieve all systempressure
prior to servicing.Carefully
removetheparts,inspectpartsfordamage,nicksorexcessivewearand
determine if any parts will need replacement.
Follow the three disassembly steps in the detail views below and place
the pump on a clean bench.
1. Remove (1)bolts. Remove(18) packing,(17)bushing and(16)“O” ring.
2. Remove (36) adapter, releasing (10) muffler housing.
3. Grasp the (11) cylinder and remove the (20, 14) piston assembly.
4. Remove(15) lowercap and(3) trackgasket. Remove(12) retaining
ring and (48) washer, then pull (14) piston off (20) piston rod.
5. Remove(2) cap and (3) track gasket. Push on the large o.d. end of
the(7)spooltoremovethe(4)sleeve.Grabthenoseof(7)spooland
pull out. Repeat for other sleeve and spool.
REASSEMBLY
- Thoroughly clean and lubricate all seals and
bores with Shell upon assembly. Replace all soft
parts with new ones included in the repair kit.
Note: Refer to the illustration (figure 2) for “U” cup lip seal direction.
1. Replace the seals on both the (7) spools and (4) sleeves.
2. Locate the valve chamber on the (11) cylinder where the 3/8’’ dia.
hole islocated and install oneof the (4) sleeves. Insertthe (7) spool
from the opposite end. Next, install the remaining sleeve and spool.
3. Replace the (3) track gasket and install (2) cap.
4. Replacethe (13)piston “U”cups(refer tofigure 2for properorienta-
tion).Replace the(19) “O”ring andassemble(14) pistonto(20) pis-
ton rod and retain with (48) washer and (12) retaining ring.
5. Installthe (20, 14) piston assembly using great care to collapse the
outer lip of the second “U” cup, allowing it to slip into the cylinder.
6. Replacethe (3) track gasket and installthe (15) cap. Install the (16)
“O” ring onto the piston rod, replace (17) bushing and (18) packing.
7. Replace the (25) “O” ring and re-attach the (24) inner check.
8. Slide the pumpassembly back into the (26) base/ lower pump sec-
tion.Pressthesectionstogetherandaligntheairinletandpumpout -
letas requiredand replacethefour (1)bolts and(27) nuts(tightento
80 in. lbs (9 Nm).
TROUBLE SHOOTING
If the pump will not cycle or will not deliver material.
• Becertaintocheckfornon-pumpproblemsincludingkinked,restric-
tiveorpluggedinlet/outlethoseordispensing device.Depressurize
the pump system and clean out any obstructions in the inlet / outlet
material lines.
• Check all seals, including track gaskets.
• Check direction of “U” cup lips.
C) Unlock the (24) inner
check from the piston
rod.
Figure 5
Figure 4
B) Graspthe lowermotorcap
and pull out the motor and
upper section of the lower
section.
PUMP DISASSEMBLY DETAIL
Figure 3
A) Remove the four
nuts from the base
of the Air Motor.
Gadus S2 U1000