Eaton 26 Series Repair Information Download | Manualshive

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December,1995

Eaton

®

Gear Pumps

Repair Information

Series 26

Model 26000 Multiple Gear Pumps

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Summary of Contents for 26 Series

Page 1: ...December 1995 Eaton Gear Pumps Repair Information Series 26 Model 26000 Multiple Gear Pumps...

Page 2: ...cation Cleanliness is extremely important Clean the port areas thoroughly before disconnecting the hydraulic lines Plug the pump ports and cover the open hydraulic lines immediately after they re disc...

Page 3: ...NF 2B Pressure L 5 8 in Str Keyed 1 5 16 12 UN 2B Suction 7 8 14 UNF 2B Pressure N 3 4 in 11 Tooth 1 1 16 12 UN 2B Suction 7 8 14 UNF 2B Pressure R 3 4 in Str Keyed 1 1 16 12 UN 2B Suction 7 8 14 UNF...

Page 4: ...O ring 14 O ring 48 Adapter Rear 15 Adapter Front 7 Idler Gear Assembly Rear 29 Idler Gear Assembly Center 6 Idler Gear Assembly Front 14 O ring 14 O ring 14 O ring 28 Body 3 Body 4 Body Rear 45 Key 4...

Page 5: ...h 5 Remove pump from vise and position pump so that the shaft end is down Now disassembly will continue from the rear of the pump 6 Start by tapping the backplate with a soft faced hammer to remove fr...

Page 6: ...move drive gear from input shaft 11 Remove wear plate and o ring seal noting position of open or closed side of wear plate 12 Using a pencil magnet remove the drive gear key from the drive shaft 13 Us...

Page 7: ...move first pump idler gear and input drive gear assembly along with wear plate and o ring seal from front plate 15 Remove second or middle pump body from second set of gears 16 Remove idler gear assem...

Page 8: ...Using a drift punch or similar tool remove the shaft seal from the front plate Caution is needed not to damage counter bore of shaft seal area when removing seal 25 Removing the plug in front plate is...

Page 9: ...Start with fingers then place bolt head in vise and turn front plate to engage threads 2 3 turns Holding bolt in vise tap front plate with rubber hammer to disengage plug Remove plug from bolt Instal...

Page 10: ...te side should be at 3 20 mm 126 in above surface of adapter 5 Check for scoring on face of backplate orbackplate side of adapter plate Replace if wear exceeds 038 mm 0015 in Body Inspection 1 Check b...

Page 11: ...body The smaller half moon port cavity must be on the pressure side of the pump The side of wear plate with midsection cut out must be on suction side of pump Suction side of backplate or adapter is...

Page 12: ...ing the previously scribed line of body and adapter install the second pump body onto the adapter plate 12 Lubricate and install the second wear plate assembly into the pump body Caution is required t...

Page 13: ...te assembly into the pump body Caution is required to not dislodge the seals during installation Remember sealing side of the wear plate is toward the adapter plate with the cut side of the wear plate...

Page 14: ...e shaft carefully so that rubber sealing lips are not cut 26 Place 1 5 16 in O D sleeve over shaft and press in shaft seal until its below the surface of the front plate 6 1mm 24 in Install retaining...

Page 15: ...R As Required 3 Remove flow divider plugs shims spring and spool from backplate Notice orientation of spool with cavity in backplate 4 Install new plug seals on plugs Install spool spring shims and p...

Page 16: ...d At Full Speed At Zero Pressure Load Intermittently to 1000 lbf in2 Load Intermittently to 500 lbf in2 When test stand is not available When test stand is available Connect to Fluid Supply Mount Pump...

Page 17: ...rvoir and refill with clean oil c Setting of relief valve too high or too low c Set to correct pressure d Oil in system too light d Drain reservoir and refill with proper viscosity oil Shaft seal leak...

Page 18: ...ate look for grooves placed in the seal side of the wear plate as shown below This new wear plate enables better pressure clamping with aerated oil in pumps 1 37 cubic inch or smaller Aerated oil may...

Page 19: ...19 Series 26 Model 26000 Multiple Gear Pump Note...

Page 20: ...Order parts from 6 635 Parts Information booklet Each order must include the following information 1 Product and or Part Number 2 Serial Number Code 3 Part Name 4 Quantity...

Page 21: ...rie MN 55344 USA Tel 952 937 9800 Fax 952 294 7722 www eaton com hydraulics Eaton Fluid Power Group Hydraulics Business Europe Route de la Longeraie 7 1110 Morges Switzerland Tel 41 0 21 811 4600 Fax...

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