Lk series – General Pump LK Repair Manual User Manual

Page 31

Advertising
background image

GENERAL PUMP

A member of the Interpump Group

LK SERIES

Page 31

2.1.3 Classes of Increase

INCREASE TABLE FOR CRANKSHAFT AND CONNECTION ROD HALF-BEARINGS

Recovery Classes

(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

INCREASE TABLE FOR PUMP CASING AND PISTON HEAD

Recovery Classes

(mm)

Piston Head p/n

Crank pin grinding

measures

(mm)

1.00

74050243

Ø 81 H6 + 0.22/0

Roughness Ra 0.8 Rt 6

2.2 Repair of the Hydraulic Parts

2.2.1 Dismantling the head - the valve assemblies

The head requires preventive maintenance as indicated in the Owner’s Manual. Operations are limited to

inspection or replacement of the valves, when necessary. To extract the valve assemblies work as follows:

Unscrew the valve lifter using a 30 mm spanner (pos. 1, fig. 103).

Advertising