General Pump MK Repair Manual - Manual (Page 23)

GENERAL PUMP
A member of the Interpump Group
MK SERIES
Page 23
Complete the assembly of the crank mechanism by applying the plugs and lifting eyebolts with the
related sealing O-ring.
Fill the crankcase with oil as indicated in the use and maintenance manual, paragraph 7.4.
2.1.3 Refurbishing the crank mechanism
TABLE UNDERSIZED DIAMETERS FOR CRANKSHAFT AND CONROD BUSHINGS
Max. Undersize
(mm)
Upper half
bushing
p/n
Lower half
bushing p/n
Crank pin grinding
measures
(mm)
0.25 90931100 90930100
Ø 92.75 0/-0.03
Roughness Ra 0.4 Rt 3.5
0.50 90931200 90930200
Ø 92.50 0/-0.03
Roughness Ra 0.4 Rt 3.5
TABLE OVERSIZED DIAMETERS FOR CRANKCASE CYLINDER BORES AND PLUNGER GUIDES
Max. oversize
(mm)
Plunger guide p/n
Crank pin grinding
measures
(mm)
1.00 74050243
Ø 81 H6 + 0.22/0
Roughness Ra 0.8 Rt 6