General-pump MKS Repair Manual Bedienungsanleitung

MKSRepair ManualMKS40A-MKS45A-MKS50AMKS55A-MKS60A-MKS65AGeneral Pump is amember of the Interpump Group8Ref 300699 Rev B05-13

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 10Remove the pressure sleeve (1, fig. 26).Remove the upper split bearing of the connecting r

GENERAL PUMPA member of the Interpump GroupMKS SERIESRemove the crankshaft with the help of a hammer on the PTO side (1, fig. 28). Remove the shaft an

GENERAL PUMPA member of the Interpump GroupMKS SERIESCouple the connecting rods with the previously disassembled caps; be sure to respect numbering (1

GENERAL PUMPA member of the Interpump GroupMKS SERIESTo separate the rod from the plunger guide, unfasten the M10 hexagonal-head screws using a size 1

GENERAL PUMPA member of the Interpump GroupMKS SERIESBlock the rod using a clamp, and proceed with calibration using a torque wrench (1, fig. 40) as i

GENERAL PUMPA member of the Interpump GroupMKS SERIESInsert the shaft (1, fig. 29) until the pre-assembled bearing is aligned with the edge of the cra

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 16Completely insert the pressure sleeve on the shaft from the opposite side of the PTO (1, f

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 17Screw the ring nut and fasten the sleeve until the dimension “X” is reduced by a value ran

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 18Remove the device that blocks the connecting rods using p/n F27566200 (1, fig. 31).Insert

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 19Once tightened on the crankshaft, make sure that conrods still have axial right-left endpl

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 2INDEX1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 20Assemble the bearing on the reducer cover (1, fig. 66).Assemble the reducer cover (1, fig.

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 21Insert the oil seal inside the reducer flange using the proper tools, p/n F27515900 and F2

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 22Insert the key 16 x 10 x 90 in the pinion.Insert the O-ring in the rear cover (1. fig. 74)

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 23Complete the assembly of the crank mechanism by applying the plugs and lifting eyebolts wi

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 242.2 Fluid End Repair2.2.1 Head Disassembly - Valve UnitsThe head requires preventive maint

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 25Extract the delivery valve unit using a slide hammer applied to the M10 hole of the valve

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 26Disassemble the suction and delivery valve units by screwing on an M10 screw long enough t

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 272.2.2 Head Assembly - Valve UnitsPay careful attention to state of wear of the various com

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 28Proceed with the insertion of the valve units (suction and delivery) into the head, paying

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 29Be sure that the O-ring and the anti-extrusion ring are perfectly fit into their seats. In

1. INTRODUCTIONThis manual describes the instructions for Repairing MKS Series pumps, and must be carefully read andunderstood before performing any r

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 30Insert the anti-extrusion ring, exploded view item 16 in Owner’s Manual (1, fig. 99).Pay p

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 31Insert the valve seat ring (1, fig 102) and the spring (1, fig. 103).Assemble the O-ring,

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 32Assemble the head on the pump casing (1, fig. 107) being careful not to bump against the p

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 332.2.3 Disassembling the Plunger Unit - Supports - SealsThe plunger unit requires a periodi

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 34Manually rotate the shaft so that the 3 plungers are in the top dead center position.Inser

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 35Remove the wiper rings from the plunger guides (1, fig. 116).If replacement of the plunger

GENERAL PUMPA member of the Interpump GroupMKS SERIESSeparate the packing support from the liner (1, fig. 121) to access the pressure packings (1, fig

GENERAL PUMPA member of the Interpump GroupMKS SERIESReplace the pressure packings by applying a small amount of silicone grease to the lips, being ca

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 38Position the O-ring (1, fig. 130) in its seat on the oil seal cover, and insert the assemb

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 39Insert the 14 x 2 O-ring in its correct seat on the plunger bolt (1, fig. 136).Assemble th

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 42.1.1 Crank Mechanism DisassemblyThe correct sequence is the followingCompletely drain the

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 40Be sure that the liner-support unit is correctly positioned in its seat (1, fig. 141).Asse

GENERAL PUMPA member of the Interpump GroupMKS SERIESCalibrate the screws with the torque wrench as indicated in paragraph 3. “SCREW CALIBRATION”Inser

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 42After re-tooling, three steel bushings designed to restore the original bores have to be d

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 433. SCREW CALIBRATIONScrews are to be fastened exclusively using a torque wrench.Descriptio

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 444. REPAIR TOOLSPump maintenance may be carried out using simple tools for assembling and d

GENERAL PUMPA member of the Interpump GroupMKS SERIESRef 300699 Rev.B05-13Page 45MAINTENANCE LOGOIL CHANGEGREASEPACKINGREPLACEMENTPLUNGER REPLACEMENTV

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 5Unfasten the reducer cover screws (1, fig. 6).Insert 3 dowels, or 3 M8 threaded screws (1,

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 6Screw on the 3 threaded screws (1, fig. 8) and simultaneously, using the appropriate tool (

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 7Remove the pinion by using a slide hammer applying it to the M14 hole (1, fig. 14).Lift the

GENERAL PUMPA member of the Interpump GroupMKS SERIESInsert a spacer under the connecting rod to block shaft rotation (1, fig. 16).Using an appropriat

GENERAL PUMPA member of the Interpump GroupMKS SERIESPage 9On the opposite side, unfasten the reducer case screws (1, fig. 21), and then remove the ca