36
Figure 18
• Position the insert in the port flange and gently ease into the hose;
Use a small amount of lubricant if necessary on the insert and inner part of hose.
• The port flange bolts must be tightened up evenly - it is important the flange is presented
evenly to the pump housing, otherwise the sealing ring will not clamp the hose correctly. The
first bolt should be tightened for two turns, followed by two turns for the bolt diagonally
opposite - repeat this for the bolts on the other diagonal (see Fig.19)
• After all four bolts have been tightened for two turns, tap or clamp the insert into the port
flange using mole grips, bolt /nut and washer the size of the output flange (see fig 18) or by
bolting all of the customer flange to the port flange to maintain its position. It is important
these two tasks are co-ordinated otherwise the assembly will not seal correctly. Repeat this
procedure until all bolts are tightened to the required torque settings in `Parts List’
• Because of the use of helicoil inserts on VF10 & VF15 Aluminium casings, care should be
taken when tightening the steel port flange bolts so as to avoid accidental stripping of the
thread
