General Pump VK Repair Manual - Manual (Page 4)

GENERAL PUMP
A member of the Interpump Group
VK SERIES
Page 4
2.1.1 Disassembly of Mechanical Parts
The correct sequence is the following:
• The pump shaft tab
• The rear cover
• The connecting rod cap
• The side covers using for extraction 3 fully threaded M6x50 screws, inserting them
in the threaded holes as indicated in fig. 2.
Push the plunger guides forward with their con-rods to facilitate side extraction of the pump. there are two
reference points visible on the shaft, 1, as shown in fig. 3 and in fig. 3a. These must be turned toward the
operator to facilitate extraction.
Note: Extraction of the plunger guides depends on prior removal the ceramic plunger and the relative spray
hood.
• Disassemble the con-rod units:
1. Unscrew the con-rod cap fixing screws.
2. Extract the con-rod caps with their relative semi-bearings (fig. 4), taking special care of the
disassembly sequence during disassembly.
To avoid possible errors, caps and con-rod shanks have been numbered on one side (1, fig. 4a).