General Pump KEZ Repair Manual - Manual (Page 4)

GENERAL PUMP
A member of the Interpump Group
KEZ SERIES
Page 4
2.1.1 Crank mechanism disassembly
The correct sequence is the following:
A) Dissasemble:
• pump shaft key
• rear cover
• connecting rod cap
• side covers, using 3 wholly threaded M6 x 50 screws, inserting
them in the holes as shown in fig. 2.
B) Push the plunger guides and connecting rods forward in order to facilitate the lateral extraction of the
crankshaft.
NOTE: to extract the plunger guide it is necessary to remove the ceramic plunger and wiper first.
C) Disassemble the crankshaft oil seals and the plunger guides using standard tools.
2.1.2 Crank mechanism assembly
A) Fit the oil seals of guide plungers in the crankcase by sliding them all the way inside until they correctly
seat in place (see fig. 5a). The use of the tool #F27904200 will facilitate the task.
B) Introduce the pre-assembled plunger guide/connecting rod units into their seat; to facilitate tightening
of the connecting rod cap, we advise to position the connecting rod so you can easily read the number.
To easily introduce the crankshaft, without the key, fully push in the plunger guide/connecting rod unit,
as indicated in section B, paragraph 2.1.1, and shown in fig. 4.
fig. 2
fig. 4