Eaton Vickers VMQ125S Series Service Manual Download Page 1

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Single, Double, Triple,
and Thru-Drive Pumps

Overhaul Service Manual

VMQ125S
VMQ135S
VMQ145S
VMQ125T
VMQ135T

VMQ145
VMQ22525
VMQ23525
VMQ24525

VMQ24535
VMQ3352525
VMQ3453525
Series – 30 Design

Summary of Contents for Vickers VMQ125S Series

Page 1: ...Single Double Triple and Thru Drive Pumps Overhaul Service Manual VMQ125S VMQ135S VMQ145S VMQ125T VMQ135T VMQ145 VMQ22525 VMQ23525 VMQ24525 VMQ24535 VMQ3352525 VMQ3453525 Series 30 Design...

Page 2: ...Balance 9 D Wafer Plate Operation 9 E Outlet Bodies 10 IV INSTALLATION AND OPERATING INSTRUCTIONS A Installation Drawings 10 B Mounting and Drive Connections 10 C Shaft Rotation 11 D Piping and Tubing...

Page 3: ...cribed in detail and their theory of operation is discussed in addition to instructions for installation maintenance and overhaul The general series of models covered are VMQ125S VMQ135S VMQ145S VMQ12...

Page 4: ...V PUVN TS001 E October 2002 Section II Description cont Figure 1b Cutaway View of Typical High Performance VMQ Double Vane Pump Figure 1c Cutaway View of Typical High Performance VMQ Triple Vane Pump...

Page 5: ...e 35 D 45 CW to mounting flange frame size 35 SAE B E In line with mounting flange frame sizes 25 45 F 90 to mounting flange frame sizes 25 45 G 45 CCW to mounting flange frame size 35 H 45 CW to moun...

Page 6: ...3019 2 100A2HW 2 bolt 100 00 3 937 x 9 2 0 36 pilot 14 1 0 56 slots on 140 0 5 51 bolt circle D Frame sizes 35 45 only ISO 3019 2 125A2HW 2 bolt 125 00 4 921 x 9 2 0 36 pilot 18 1 0 71 slots on 180 0...

Page 7: ...SAE J744 127 2 127 00 5 000 x 12 4 0 49 pilot 17 6 0 69 slots on 181 0 7 13 bolt circle B ISO 3019 2 125A2HW 2 bolt 125 00 4 921 x 9 2 0 36 pilot 18 1 0 71 slots on 180 0 7 09 bolt circle Input shaft...

Page 8: ...rt causes the vanes to follow the elliptical inner surface of the ring Radial movement of the vanes and turning of the rotor causes the chamber volume between the vanes to increase as the vanes pass t...

Page 9: ...vel of the pump The position of the wafer plates in the cartridge kit can be seen in Figure 5 VMQ wafer plates have a bronze finish that rides next to the rotor and provides excellent wear and thermal...

Page 10: ...ction IV Installation and Operating Instructions A Installation Drawings See the series 30 VMQ product catalog for installation dimensions B Mounting and Drive Connections Eaton high performance vane...

Page 11: ...the system and or by proper filtration of the air 5 Proper oil filling and servicing of filters breathers reservoirs etc cannot be overemphasized 6 Good system and reservoir design will insure that ae...

Page 12: ...he reservoir and air will be recycled through the system 3 Aerated fluid can also be caused by ingestion of air through the pipe joints of inlet lines high velocity discharge lines cylinder rod packin...

Page 13: ...rough the filter which would ordinarily be trapped or can cause the bypass to open resulting in a partial or complete loss of filtration 4 Air bubbles in the reservoir can ruin the pump and other comp...

Page 14: ...he reservoir is above the intake pipe opening Check the minimum drive speed which may be too slow to prime the pump Vane s stuck in the rotor slots s Disassemble the pump Check for dirt or metal chips...

Page 15: ...afts Outlet Support Plate Inlet Cover Assembly Pin Kit Seals Housing Bolt Inlet Wafer Plate Inlet Support Plate Cartridge Torque Pin Vane and Under Vane Pin Rotor Retaining Ring Back Up Ring Anti Rota...

Page 16: ...sing Torque Specs INLET HOUSING THRU DRIVE ADAPTOR SAE A SAE B THRU DRIVE ADAPTOR SAE C ISO NM SAE ft lb ISO NM SAE ft lb ISO NM SAE ft lb Dry Oiled Dry Oiled Dry Oiled Dry Oiled Dry Oiled Dry Oiled V...

Page 17: ...ry Oiled Dry Oiled Dry Oiled Dry Oiled VMQ22525 153 16 115 12 113 11 85 9 VMQ23525 305 31 229 23 225 23 169 17 153 16 115 12 113 11 85 9 VMQ24525 305 31 229 23 225 23 169 17 153 16 115 12 113 11 85 9...

Page 18: ...AE ft lb ISO NM SAE ft lb ISO NM SAE ft lb Dry Oiled Dry Oiled Dry Oiled Dry Oiled Dry Oiled Dry Oiled VMQ22525 153 16 115 12 113 11 85 9 VMQ23525 305 31 229 23 225 23 169 17 153 16 115 12 113 11 85 9...

Page 19: ...use protective jaws to avoid damage to the body and its machined surfaces Mark the pump body and cover for correct reassembly Remove the necessary screws to disassemble the housing Remove all Housing...

Page 20: ...VMQ 20 in lb 2 28 Nm 45 VMQ 40 in lb 4 55 Nm All parts must be thoroughly clean and kept clean during inspection and assembly 1 Remove the shaft seal s O rings back up rings and seal pack subassemblie...

Page 21: ...icate the bullet with petroleum jelly and carefully push the shaft through the seal s until the bearing is within the body Install the large spiralox ring into the body snap ring groove behind the bea...

Page 22: ...October 2002 Eaton 14615 Lone Oak Road Eden Prairie MN 55344 USA Tel 952 937 9800 Fax 952 974 7722 www hydraulics eaton com Eaton 46 New Lane Havant Hampshire PO9 2NB England Tel 44 23 92 486 451 Fax...