General Pump HTCK4050S - Manual (Page 7)

GENERAL PUMP
A member of the Interpump Group
HTCK4050S
Page 7
Fasten the caps to their respective con-rod shanks by means of M8x1x48 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. Tighten torque: 22 ft.lbs. (30 Nm)
Alternately, ensure:
1. Pre-tightening torque: 7-11 ft.lbs. (10-15 Nm)
2. Tightening torque: 22 ft.lbs. (30 Nm)
-After having completing tightening operations, check that the con-rod head has a side clearance in
both directions.
-Insert the new plunger guide seal rings as far as possible into the relative seat on the pump casing
(fig. 11), following the procedure described:
Using tool p/n 27904900 composed of a tapered bushing and a buffer. Screw the tapered bushing into the
hole in the plunger guide (fig. 11a). 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. 11b), remove the tapered bushing (fig. 11c).
-Couple the con-rod caps to their shanks, referring to the numbering (fig. 9, 1).
Note the correct assembly direction of the caps.
Ref 300934 Rev.A
09-13