General Pump KE Owner Manual - Manual (Page 12)

GENERAL PUMP
A member of the Interpump Group
KE 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.
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.
C) Before reassembling the side covers, check the seal
lips for wear. If they need replacing, fit the new ring
following the indications in Fig. 11.
Note: Should the shaft show diameter wear where there
is the seal lip, it is possible to avoid grinding by fitting the
seal further as indicated in Fig. 11. Before installing the
cover (sight glass side) check that the shim rings have
been placed. To help the covers fit on the crankcase, you
can use 3 screws M6 x 40, and then finish screwing
them with the original bolts M16 x 16.