Interpump Group Pratissoli EV-E4 Serie Manual De Reparación página 15

RING POSITION ON FIRST ASSEMBLY
RING POSITION TO REMOVE SHAFT
- Couple the con-rod caps to their shanks (Fig. 9,
pos. ).
Note the correct assembly direction of the caps.
- Fasten the caps to their respective con-rod shanks by
means of M8x35 screws (Fig. 10) lubricating both the
underhead and the threaded shank, proceeding in
two different stages:
1. Manually turn the screws until they begin to
tighten
2. Tightening torque
Alternatively, ensure:
1. Pre-tightening torque
2. Tightening torque
IF WORN
Fig. 8
Fig. 8/a
1
Fig. 9
20 Nm
10 Nm
20 Nm
- After having completed tightening operations, check that
the con-rod head has a side clearance in both directions.
- Insert the new piston guide seal rings as far as possible
into the relative seat on the pump casing (Fig. 11),
following the procedure described:
use tools code 25027100 and code 27936600 composed
of a tapered bush and a buffer. Screw the tapered bush
into the hole in the piston guide (Fig. 11/a), insert the new
seal ring on the buffer as far as it will go (determined by
the height of the buffer) into its seat on the pump casing
(Fig. 11/b), remove the tapered bush (Fig. 11/c).
POS. RING
15
Fig. 10
Fig. 11
Fig. 11/a