Oerlikon Leybold Vacuum Sogevac SV630 B Operating Instructions Manual page 37

K. Disassembling and reassembling the pump module
Consult Oerlikon Leybold Vacuum.
Depending on the process involved, dangerous substances may escape
from the pump and oil. Take the appropriate precautions.
Observe the safety regulations.
Never mount used seals ; always mount new seals.
When disposing of used oil please observe the relevant environmental
regulations !
L. Checking and tightening the V-belts
Tools required :
Key 19 and 24.
■
Take off the hood (55 or 15).
Loosen the nuts (66) and (23) x 2. Loosen the push rod (82).
Remove the V belts.
Reassemble in reverse sequence.
Stretch the V-Belts with the following method:
V-belt tension meter
This tension meter ref. 971437840 is a tool designed to check and re-tighten
the v-belts
It is made of two sliding pipes with a graded spring inside.
1
Position of the tool on the
longest V-belt in its centre
and mark this belt.
2
Push the tool down until you
reach a 10 mm bending
= =
GA02319_002_03 - 07/2007 - © Oerlikon Leybold Vacuum
Maintenance
Warning
Note
O-ring set on initial
position 0 N
3
O-ring is set on
position 10 mm
The result of your
measurement has to
lie between
35 N and 58 N
4
10 mm
fig. 8
37