SKF SMD 1B, Руководство по жизненному циклу компонентов, Страница: 64 / 114

Page 64
EN
9. Maintenance
9.5 Set to bypass mode (service position)
(Version delivered up to 14 August 2002)

- see page 9.2 ”Bypass mode” and Fig.16
Adjustment of the bypass valve
• Insert aan allen key ( 1 ) in the bypass
valve ( 2 ) or ( 3 )
• View A
Turn the bypass valve ( SMD 1B/SMD 2 )
( 2 ) counterclockwise until the stop is
reached (approx.90°) .
• View B
Turn the bypass valve ( SMD 1B/SMD 2 )
( 3 ) clockwise until the stop is reached
(approx. 90°)
or:
• Turn the bypass valve ( SMD 3 ) clockwise
until the stop is reached (approx. 180°)

After turning the bypass valve the gears
in the gear wheel type low indicator will
stop. The oil low is routed directly through
the bypass and the throttle screw to
the respective lube point and this way
continues to supply the lube point with the
required low.
• Check the bypass function
Attention!
The oil in the gear chamber is under
pressure. The oil can escape from the
gear chamber if the cover bolts are
carefully loosened 1 turn (the gasket
(cf. Fig. 17) thus remains in its seat).
After some 10 seconds the low of
oil from the gear chamber must have
dropped to a minimum (a fast string
of drops at the most). If that is not the
case, it has to be assumed that the
bypass valve isn’t properly shutting off
the oil low to the gear chamber. The
bypass valve has to be readjusted. If a
large amount of oil escapes instead of a
string of drops, abort the service routine
and retightes the cover bolts. When
doing so, pay attention to whether the
gasket (cf. Fig. 17) is correctly seated!
We recommend that the ”open bypass
function” be retained.
In the ”open bypass function” the lube
point will continue to be supplied with
the full amount of oil. There is no
• Loosen the cover bolts (SMD 1B /SMD 2
= 4x, SMD 3 = 6x)
1 turn each !

As a result of the drop in pressure a small
amount of oil will emerge between the
plastic cover and the gear chamber. After
10 seconds the oil low from the gear
chamber must have dropped to a mini-
mum (a fast string of drops at the most)
(otherwise – see pointer above).
• Completely loosen the cover bolts and
remove the plastic cover.
• Perform the service procedure
monitoring of the low while in the
”open bypass function” position. The
necessary service procedure has to
be performed at the latest when the
machine is shut down again.