Micron Technology Turbofan - Manual (Page 28)

Since February 2003 the hydraulic motor driving the Turbofan head has been fitted with a
double oil seal arrangement. Between the two seals there is a port connected to outside via
the flange of the motor. This port is connected to a small "tell-tale" bottle of transparent
plastic. A failure of the first seal will result in oil being passed into the bottle.
If oil is observed in either the bottle or the pipe leading to it, the machine must be stopped
and the seals (both) replaced.
This arrangement is shown in the above illustration.
KEY:
A = Hydraulic Motor Part No. 6358
B = Pipe Part No. 4993/8
C = Bottle Part No. 6574 D = Clip Part No. 6573
E = Nozzle Part No. 6575
APPENDIX A
TURBOFAN HYDRAULIC MOTOR DOUBLE SEAL ARRANGEMENT
WITH "TELL-TALE" BOTTLE
NOTE: THE PURPOSE OF THE BOTTLE IS TO SHOW LEAKING OIL. DO
NOT PUT OIL IN THE BOTTLE.
A
B
C D
E