HP10E / HP12E / HP15E / HP20E - Dairy design8. Maintenance
8-18 © VEMAG 2013
8.10 Biennial maintenance
8.10.1 Double screw drive (oil change)
The oil in the double screw drive should be changed every two years.
• Open the service hatch on the right-hand side.
• Unscrew the cover (1) of the expansion reservoir, holding the reservoir
steady in the other hand, and take it out of its bracket. You must hold
the reservoir upright so that no oil escapes. The connecting hose to
the double screw drive is long enough to enable lling to take place
outside the machine housing.
• Drain the used oil into a suitable container.
• Then ll the expansion reservoir with fresh oil and attach the expan-
sion reservoir back in its bracket after replenishing it. Check the lling
level. The oil should come at least to the marking on the reservoir.
• The machine is stopped if the leak detector sensor indicates leakage
into the doublescrew drive leak detection area. If this should be the
case, the seals of the double screw drive must be replaced, otherwise
there is a risk of oil getting into the double screws.
1 Cover
Fig. 8-19
Changing double screw
drive oil
1
• Close the service hatch again.
Warning!
The seals of the double screw drive must be replaced before production
is resumed.