General Pump KF Owner Manual - Manual (Page 12)

GENERAL PUMP
A member of the Interpump Group
KF SERIES
Page 12
11.1.1 Crank mechanism disassembling
Do as follows:
A) Drain the oil from the pump and remove:
-shaft key
-back cover
-connecting rod cap
-side covers. To do so, put 3 screws M6 x 50 wholly
threaded into the holes drilled for that purpose. See
fig 9.
B) Push the piston guides and connecting rods forward
so you can remove the pump crankshaft from the side.
On the crankshaft, you will find marks (see Fig. 10)
that must be turned towards the operator so the
crankshaft can be easily extracted. Note: to extract the
piston guide, it is necessary to remove the ceramic
plunger and wiper first.
C) Disassemble the crankshaft oil seals and the piston
guides using standard tools.
11.1.2 Crank mechanism reassembling
After washing the crankcase, reassemble the power end
as follows:
A) Fit the piston guide seals into their seat thoroughly
making sure they are correctly positioned.
B) Introduce the units piston guide/connecting rod into
their seats (to facilitate the tightening of the connecting
rod cap position the connecting rod so you can easily
read the number). To install the crankshaft, without
key, it is necessary to push the unit piston guide/
connecting rod backward.