Elmo Rietschle V-VTE 3/6/8/10 - Manual (Page 21)

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Maintenance and repair
1
2
Fig. 4 Purging fi lter cartridge
1 Filter cartridge
2 Compressed air
WARNING
Danger of injury when dealing with com-
pressed air.
When blowing through with compressed air, solid
particles may be carried along or powder dust swir-
ling around may cause injury to the eyes. Therefore,
when cleaning with compressed air always wear
goggles and a dust mask.
Checking blades:
The models V-VTE have 4 blades which have a low
but permanent wear factor.
First check after 4,000 operating hours, thereafter
every 1,000 operating hours.
Unscrew the housing cover (Fig. 3/b) from the hous-
ing. Remove the blades (Fig. 7/e) to be checked. All
blades must have a minimum height (Fig. 3/X):
Type X (minimum height)
V-VTE 3, 6 10 mm
V-VTE 8, 10 12 mm
The blades must only be changed as a set.
Changing blades: If you detect during the blade
check that the minimum height has been reached or
it has fallen below the minimum height, the blade set
must be changed.
Blow out the housing and the rotor slot. Insert the
blades into the rotor slot. When doing this you must
ensure that the blades with the sloping side (Fig. 3/
Y) point outwards and the direction of rotation of
these sloping sides (Fig. 3/O
1
) matches that of the
drilled holes for the housing (Fig. 3/Z).
Replace the housing cover (Fig. 3/b) and slightly
tighten the screws. Start the pump briefl y and check
for free and smooth running blades. Tighten the
screws (Fig. 3/s) to 5,5 + 0,5 Nm.
7.2.2 Replacing blades