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INSTRUCTION MANUAL

S1221, Rev C

Air Operated 1:1 Oil Ratio Pump
OP-11

Congratulations on purchase of this World Class Air Operated Oil Ratio Pump !

•  World-class Industrial Oil Dispensing pumps with 

guaranteed performance & hassle free operation

•  Used as transfer pumps to quickly transfer oils from large 

drums to smaller containers. Pumps are designed to work 
in tough conditions & are ideal for use with low to medium 
viscosity oils (up to SAE 80) for transferring over short 
distances (up to 5 metres). 

•  All metal construction, fully CNC machined with hardened 

wear resistant moving parts

•  Reciprocating piston operated 2-1/2” (63 mm) dia. Air Motor

•  Stub Pumps are supplied with Non Return Valve threaded 

1” (F) for use on the bottom of the Suction Tube. Other 
pump lengths have a built in Strainer at pump inlet to keep 
contaminants away

•  Pumps are double acting with discharge up to 40 LPM 

(10.58 GPM). Air Consumption is 270 LPM (71.5 GPM)

•  Also available complete with Oil bar tap & connecting 

links (ODS series, used as an Air Operated Oil Dispenser to 
quickly & conveniently dispense Oils from Drums. 

•  Available in four different versions - Stub, 16 Gal, 55 Gal & 

ODS version

PUMP CONSTITUENTS

2

3

1

1.  Pump Assembly 
2.  Bung Nut
3.  Oil Bar Tap with connecting links 

(Only in ODS Version)

Stub Version

OP/S/11B

16 Gal Version

OP/T2/11B

ODS Version

ODS/T3/11B

55 Gal Version

OP/T3/11B

730 mm (28 - 3/4”)

950 mm (37 - 3/8”)

Fig. 1

Summary of Contents for OP-11

Page 1: ...ng piston operated 2 1 2 63 mm dia Air Motor Stub Pumps are supplied with Non Return Valve threaded 1 F for use on the bottom of the Suction Tube Other pump lengths have a built in Strainer at pump in...

Page 2: ...NTS PUMP CONSTRUCTION GETTING STARTED PUMP INSTALLATION OPERATION MAINTENANCE REPAIR EXPLODED VIEW PARTS LIST TROUBLESHOOTING REPLACEMENT SERVICE PARTS PROGRAM SPECIFICATIONS WARNINGS Repair Kit Repla...

Page 3: ...30 PSI 2 BAR When not in use at the end of each day air supply to the pump must be switched off DISCHARGE HOSE It is recommended to use a hose with I D with a Working Pressure of not less than 400 PSI...

Page 4: ...o grip it in a vice with aluminium or copper jaws clamp the shaft in a hand drill chuck and then turn the chuck by hand Be careful when fitting O rings and seals Always lubricate them with oil before...

Page 5: ...9 with a plastic mallet Hold Housing 39 in soft jaw vice Unscrew Lower Cylinder 59 anticlockwise pull it out to disconnect it from the piston assembly 4 Hold a nose plier into the pin holes of Non Ret...

Page 6: ...mm 11 Connect a caliper wrench into the holes on inlet Cover 29 Unscrew it anticlockwise 12 Unscrew both Pushers 19 using wrench size 25 mm or a pneumatic wrench with 25 mm socket 13 Remove both Push...

Page 7: ...et 15 Remove Slider 26 with a tweezer 16 Open the two Screws 18 with a Philips screwdriver remove Clip 17 17 Use a Tweezer remove Nylon Slider 23 On removal Slider Rod 27 is still connected either to...

Page 8: ...e all mating surfaces are clean before reassembly Apply minor oil on all mating surfaces O Rings moving parts before reassembly Ensure that height of Nylon Slider 23 is approx 5 3 5 7 mm Also hollow p...

Page 9: ...STUB PUMP ONLY KIT PST T3 11B KIT SEL T3 11B KIT NRV T3 11B KIT 01 T3 11B 13 15 11 20 16 17 18 19 6 21 24 15 16 17 18 19 26 29 18 22 23 25 27 28 30 31 32 18 33 34 2 3 4 38 6 40 42 44 48 50 67 51 53 5...

Page 10: ...16 Pusher Nut 2 17 Pusher Spring 2 18 O Ring BS617 4 19 Pusher 2 20 Paper Seal 1 21 Seat 1 22 Slider Guide 1 23 Nylon slider 1 24 Clip 1 25 Self Tapping Screw 2 26 Slider 1 27 Slider Rod 1 28 O Ring B...

Page 11: ...Seal Support Middle 1 55 Wavy Washer 1 56 O Ring BS029 1 57 Adapter Piston 1 58 Non Return Piston 1 59 Lower Cylinder 1 60 Nyloc Nut 1 61 Non Return 1 62 O Ring BS130 1 63 Body Non Return Valve 1 64 S...

Page 12: ...r wear tear Replace the defective parts from Repair Kit 4 Ensure to replace the moving parts having close tolerances such as Nylon Slider 23 Paper Seal 20 Seat 21 as a SET to ensure the best fitting P...

Page 13: ...PARTS PROGRAM REFERENCE NO FROM EXPLODED VIEW PART NO DESCRIPTION QUANTITY 66 BUNG OP 42 Bung 1 74 KIT ODS Oil Bar Tap with Connecting Links 1 REPLACEMENT SERVICE PARTS PROGRAM Refer to Exploded View...

Page 14: ...on Assembly O Ring ORG BS121 O Ring ORG BS119 23 21 20 50 58 49 28 70 18 6 12 59 37 40 Replace Component No 20 21 23 as a SET Paper Seal SEL R RP Seal Adapter Assembly SA ADP SEL RP 60E KIT SEL T3 11B...

Page 15: ...SA ADP SEL RP 60E Seal Adapter Assembly N A 1 ASSEMBLED KIT PST T3 11B PISTON KIT CYL RP 60E BL Cylinder 59 1 ASSEMBLED SH PST RP 60E Seal Holder 51 1 SSU PST RP 60E Seal Support Piston 52 2 SEL PST R...

Page 16: ...nt of or in contact with the control outlet Always cut off air supply after use so that media cannot leak in case any of the pump component fails Before switching the air supply on check hoses for any...

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