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INSTRUCTION MANUAL
Air Operated 3:1 Oil Ratio Pump
OP-31
Congratulations on purchase of this World Class Air Operated Oil Ratio Pump !
• World-class Industrial Oil Dispensing pumps with
guaranteed performance & hassle free operation
• Pumps are designed to work in tough conditions &
are ideal for use with medium to high viscosity oils
(upto SAE 130) for transferring over short distances
(upto 30 metres), mostly used with Trolley mounted
kits
• All metal construction, fully CNC machined with
hardened wear resistant moving parts
• Reciprocating piston operated 2-1/2" (63 mm) dia.
Air Motor
• Available in three different sizes - Stub, 16 Gal & 55
Gal version
• 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 single acting with discharge up to 14 LPM
(3.70 GPM). Air Consumption: 230 LPM (61 GPM)
PUMP CONSTITUENTS
1.
Pump Assembly
2.
Bung Nut
Stub Version
OP/S/31B
1
1
16 Gal Version
OP/T2/31B
2
S1220, Rev D
55 Gal Version
OP/T3/31B
Fig. 1
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Summary of Contents for Groz OP-31 Series
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Page 1: Pump Constituents
INSTRUCTION MANUAL S1220, Rev D Air Operated 3:1 Oil Ratio Pump OP-31 Congratulations on purchase of this World Class Air Operated Oil Ratio Pump ! Stub Version 16 Gal Version 55 Gal Version • World-class Industrial Oil Dispensing pumps with guaranteed performance &... -
Page 2: Table Of Contents
Contents Page No. PUMP CONSTITUENTS ....................PUMP CONSTRUCTION ....................GETTING STARTED ......................PUMP INSTALLATION & OPERATION ................MAINTENANCE & REPAIR ..................... • Air Motor Kit Replacement ..................EXPLODED VIEW ......................PARTS LIST ........................10-11 TROUBLESHOOTING ......................REPLACEMENT & SERVICE PARTS PROGRAM .............. 13-14 • Replacement Parts Program .................. -
Page 3: Pump Construction
PUMP CONSTRUCTION The pump is made up of two sections as below :- Fig. 2 • DRIVE SECTION:- It consists of an Air Motor Assembly driven by compressed air. The piston diameter of the air motor is 2.5” / 63 mm. The motor DRIVE SECTION consists of an air cylinder with piston and one reciprocal valve with a nylon slider. -
Page 4: Maintenance & Repair
MAINTENANCE & REPAIR (Refer to Exploded View - Page 9) General Precautions • Before performing any service operation, always shut off the air supply and release the system pressure i.e. let the media out so that the pressure decreases. When storing the pump assembly out of the drum, cover the Filter Tube (60) with Filter Cap (61). • Be careful not to damage any parts when dismantling. -
Page 5: Air Motor Kit Replacement
Air Motor Kit Replacement (Refer to Table 4 - Page 14) Pull out Filter Cap (61) by Tap lightly with a hammer hand. Hold Barrel (55) in a to drive out upper Slotted Spring Pin (46) taking care soft-jaw vice. not to bend Extension Rod (48). - Page 6 Remove Coupler (44). 12. Remove Bend Pipe (1) Pull Extension Rod (48) along with both Coupling so that Piston (53) also Nuts (2) & Sealing Rings comes out of barrel (55). (3). 13. Unscrew both Bends (4) using wrench (size 13 mm).
- Page 7 21. Remove Slider (30) with a 17. Unscrew both Pushers tweezer. (15) using wrench (size 25 mm). 22. Open the two Screws 18. Remove both Pushers (29) with a Philips (15), Springs (17), Pusher screwdriver & remove Nuts (18) & Pusher Clip (28).
- Page 8 26. Replace the Air Motor Kit (KIT/T3/31B) as mentioned in Table Apply oil 4 - Page 14, by following the steps 1-25 in reverse order taking care of the points below: • Ensure all mating • Lip of lower Seal (54) surfaces are clean must face upwards, before reassembly.
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Page 9: Exploded View
EXPLODED VIEW Fig. 3 KIT/T3/31B Fig. 3A CORRECT FITMENT OF SEALS (39) Apply locking fluid on the Slider Guide (38) with threads of Barrel (55) & its outer O Ring (37) tighten with hand Conical side of all four Seals (39) must face upwards Seal Support (40) with its inside O Ring (11) -
Page 10: Parts List
Table 1 PARTS LIST REFERENCE NO. FROM EXPLODED VIEW DESCRIPTION QUANTITY Bend Pipe Coupling Nut Sealing Ring Bend Cylinder Cover O Ring BS141 Plunger Nut Rubber Plunger Plunger Rod Cylinder O Ring BS614 Rod Guide O Ring Housing Pusher O Ring BS617 Pusher Spring Pusher Nut Pusher Button... - Page 11 REFERENCE NO. FROM EXPLODED VIEW DESCRIPTION QUANTITY Washer Slotted Spring Pin (Upper) Connecter Extension Rod Slotted Spring Pin (Lower) Piston Coupler Ball (5/8”) Slitted Washer Piston Seal Barrel Bung Circlip Ball (7/8”) O Ring BS126 Filter Tube Filter Cap...
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Page 12: Troubleshooting
TROUBLESHOOTING Table 2 (Refer to Exploded View - Page 9) PROBLEM POSSIBLE CAUSE SOLUTION Make sure that media used has a viscosity of SAE 130 or Media viscosity is too high lower Drum is Empty Media level inside the drum may be too low. Refill drum Pump operates, but does not dispense media at all Pump inlet is blocked... -
Page 13: Replacement & Service Parts Program
REPLACEMENT & SERVICE PARTS PROGRAM Table 3 (Refer to Exploded View - Page 9) REPLACEMENT PARTS PROGRAM REFERENCE NO. FROM EXPLODED VIEW PART NO. DESCRIPTION QUANTITY BUNG/OP/42 Bung... -
Page 14: Service Parts Program
SERVICE PARTS PROGRAM Fig. 4 Fig. 5 O Ring ORG/BS141 Paper Seal Washer SEL/R/RP WSR/PVC/RP O Ring ORG/BS126 Slitted Washer (Turcite) WSR/TU/RP Seat O Ring Nylon Slider ORG/BS121 SET/RP SLD/NY/RP Replace Component No. O Ring 24, 25 & 27 as a SET Seal ORG/BS617 OS/RP... -
Page 15: Specifications
SPECIFICATIONS Table 5 Flow Rate Up to 14 LPM (3.70 GPM) Working Pressure 2-10 BAR (30-150 PSI) Maximum Air Inlet Pressure 10 BAR (150 PSI) Maximum Media Outlet Pressure 30 BAR (450 PSI) Air Inlet Connection 1/4” (F) Pump Inlet on Stub Pumps only 1”... - Page 16 Village Kherki Daula, National Highway-8 Gurgaon-122001, Haryana, INDIA TEL +91.124.282.7700 / 221.4050 FAX +91.124.2827986 / 221.4224 FAX (USA) +1.509.271.7848 FAX (UK) +44.870.121.1854 E-MAIL info@groz-tools.com www.groz-tools.com The Groz name, Groz logo and the mark are trademarks of Groz Engineering Tools (P) Ltd. India...
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