General Pump VK Repair Manual - Manual (Page 11)

GENERAL PUMP
A member of the Interpump Group
VK SERIES
Fasten the reduction gear box with 6 M8x50 screws and calibrate the screws with a torque wrench (fig. 25)
as indicated in section 3. Insert the ring gear on the shaft, interpose the washer and tighten the fixing screws
(fig 26) with a torque wrench to the torque indicated in section 3.
Apply the two pins Ø 5 to the reduction gear box (1, fig. 27). Preset the bearing on the pinion and insert it
down to the bottom of its housing on the reduction gear box by means of a striking hammer (fig. 28).
Page 11
The bearings and the ring gear can be mounted cold. The press fitting operation can be facilitated by heating
the involved parts to a temperature between 250 o - 300 o F (120 o - 150 o F), ensuring that the ring nuts go
down to end stroke in their housings.