BearCat 960 Helical Gear Pump
Contents
1. Packing Housing Blind Bearing Cap Packing Washer Packing Set Packing Gland Retainer Clip Y2 13 x 1 5 Hex Bolt 16 3 8 16x1 75 SHCS 6 3 8 16x1 25 Hex Bolts 4 1 8 NPT Grease Zerk 4 Part Number FAS 88678 RNG 83614 HSG 83605 HSG 83611 HSG 83606 N A SET 83695 BRK 83689 BRK 83725 N A N A N A N A BEARCAT BearCat Pumps L L C Page 5 AP PUMPS 960 Technical Service Manual 960 PUMP CURVES S g B ee P 5 T 4 75 psig 100 psig a 300 Pump Speed RPM BEARCAT BearCat Pumps L L C Page 6 AM PUMPS2. free from defects in workmanship or material for a period of one year from date of shipment Due to the inconsistencies in blend formulas and operating methods BearCat Pumps does not assume responsibility for pump wear life After material has entered a pump all warranty claims will be determined by factory authorized personal BearCat Pumps assumes no liability for consequential damages of any kind and the purchaser by acceptance of delivery assumes all liability for the consequences of the use or misuse of BearCat products by the purchaser his employees or others BearCat Pumps will assume no field expenses for Service or parts unless authorized by it in advance This is BearCat s sole warranty and is in lieu of all other warranties expressed or implied which are hereby excluded including in particular all warranties of merchantability or fitness for a particular purpose BEARCAT BearCat Pumps L L C Page 4 A PUMPS 960 Technical Service Manual Figure 4 Exploded View Description Gear Set Drive Shaft short Drive Shaft long Idle Shaft Housing Bodv Port Gasket 2 End Plate Gasket 2 End Plate 2 Piston Ring Bracket 4 Piston Ring 4 Bearing 4 Belleville Washer 2 Cotter Pin 2 Part Number GER 83680 PTM 83643 PTM 83644 PTM 83640 HSG 83601 RNG 89071 RNG 69993 HSG 83603 MSC 83666 FAS 83614 PTM 83612 N A GER 64502 Description Castle Nut 2 Cap O ring Domed Bearing Cap 2
3. 960 Technical Service Manual CONTENTS Introduction How it Works Relief Valve Packing Box Warrantv Parts Diagram Pump Curves Aa M6 RO lb DANGER Before starting pump be sure all drive eguipment guards are in place Failure to properly mount guards may result in serious injury or death Figure Z Rotation and Flow pumps and must have some sort of pressure protection This may be a relief valve mounted to Figure 1 Bear at S60P INTRODUCTION This manual deals exclusivelv with the 960 series Pumps Included in this manual are most general issues pertaining to this pump For special applications not covered in the manual please refer to the factory or authorized service personnel HOW IT PUMPS Pumping The pumps operate equally in clockwise or counter clockwise rotation The rotational direction determines which port is suction and which discharge Figure 2 shows how the liquid travels the outside of the gears to get from inlet to outlet Pressure Relief Valve BearCat Pumps are positive displacement the backside of the pump The Pressure Relief Valve is made up of a plate that is held against a port by a spring The spring tension can be adjusted for varying pressures When the pressure exceeds the adjusted amount it pushes the plate Inner Poppet back allowing the liquid to flow back to the inlet side of the pump If a pump is rotated in reverse of normal operation the end plate with the relief val
4. derstood an inch after tightening the Packing Gland Nuts Be sure the glands are tightened evenly Tighten Packing Nuts to about 1 1 2 turns past figure tight DO NOT over tighten further adjustment should be done while pump is operating Failure to follow the above listed precautionary measures may result in injury or death BEARCAT BearCat Pumps L L C Page 3 AW PUMPS 960 Technical Service Manual MAINTENANCE The 960 series pumps are designed for long trouble free service under an extended varietv of applications with minimal maintenance however the following should be considered 1 PACKING ADJUSTMENT New packed pumps generally require some initial packing adjustment to control leakage as packing is broken in DO NOT over tighten the packing gland After initial adjustment occasionally inspect for further adjustment and or packing replacement 2 PORT FLANGE Re tighten the port flanges after initial heat up as the gasket material tends to soften and leaks can develop Inspect connections frequently during first few days of operation 3 STORAGE If the pump is to be stored for an extended length a light coat of lubricating and preservative oil should be applied to the internal parts DANGER Before starting pump be sure all drive equipment guards are in place Failure to properly mount guards may result in serious injury or death WARRANTY BearCat Pumps warrants all products manufactured by it to be
5. terial Safety Data Sheets MSDS for the liquid to be sure these precautions are understood Failure to follow the above listed precautionary measures may result in injury or death BEARCAT BearCat Pumps L L C Page 2 Ap PUMPS 960 Technical Service Manual Description V Studs Nuts Gland Clips Packing Gland Packing Set Packing Washer Jacketed Shaft Plate Figure 7 Seal Chamber DANGER PACKING BOX MM Periodic service of the packing seal can improve Before servicing anv BearCat Pump liquid pump performance as well as extend service life chamber or Relief Valve ensure that MM Packing Replacement Pressure inside pump has been NA GA i NI Pra 1 Remove Clips and Gland p ey 5 2 Remove old packing Use a packing hook or T appropriate openings or a heat ania handle cork screw tool Be sure to remove ALL packing The drive system has been locked l out so that it cannot be started while 3 Install new packing one at a time Stagger the split work is being done on the pump of each ring at 180 intervals Lubricate the rings Sufficient time has expired for the with oil or grease to aid in assembly A length of liquid to cool sufficiently inside the pipe or tubing will help in seating the packing pump Observe any Material Safety rings Data Sheets MSDS for the liquid 4 Install the Packing Gland and Nuts The gland to be sure these precautions are must enter the stuffing box at least one eighth of un
6. ve must be rotated 180 degrees Pressure relief valves cannot be used to control flow or regulate pressure BEARCAT AP PUMPS BearCat Pumps L L C Page 960 Technical Service Manual Description RV Housing Box Inner Poppet Outer Spring Inner Spring Outer Poppet Cap O ring Adjuster Cap Bolt O ring Adjuster Lock Nut SO Oo JOJ A ou B Q N O Pressure Adjuster Bolt ay Inlet Cap RELIEF VALVE It may become necessary to access the inside of the pressure relief valve If the Relief Plate 1s removed for repairs be sure to replace it in the proper orientation in relation to the outlet port See Figure 6 REMOVAL 1 Measure the Pressure adjuster s ki bolt distance from back of the F igure 6 Relief Valve Cap to the end of the Adjuster Bolt before proceeding Release spring compression by loosening the Adjuster Lock Nut and Bolt Remove 2 bolts securing the Adjuster Cap Remove items 2 6 Fig 6 Clean and inspect Re assemble in reverse order Set Adjuster Bolt to distance measurement established in step 1 oo o DANGER Before servicing any BearCat Pump liquid chamber or Relief Valve ensure that Pressure inside pump has been completely vented through appropriate openings or connections The drive system has been locked out so that it cannot be started while work is being done Sufficient time has expired for the liquid to cool sufficiently inside the pump Observe any Ma
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