Leybold Vacuum Products, TRIVAC A, Dual Stage, Rotary Vane ...

Step F-1 b (2) (Cont'd.) (b) For D30A pump models, use an allen wrench to loosen the setscrews that
secure the fan to the shaft. Remove the fan.
For D60A and D90A pump models, loosen the screw that secures the fan to
the shaft. Remove the fan; then use diagonal cutting pliers to remove the key
from the shaft.
NOTE: For use during reassembly, the fan must be positioned on the shaft
so that it does not contact the fan end-plate or the fan cover.
TABLE 5-2. Parts Required for Installing the Rotational Lock Bearing
Pump
Model
Quantity Part Name Part Number
1 Rotational Lock Bearing KK17 991040045
D30A 2 Spring Washer 72534002
1
D60ND90A 1
Loctite 601
Rotational Lock Bearing KK35 for
Marathon Motors*
Rotational Lock Bearing KK30 for
GEMotors
721 12005*
721 12004
2 Spring Washers K 6206 for GE Motors 99164002
Loctite 601 or 609
*For D60A and D90A pumps that have Marathon motors, the rotational lock bearing goes onto the shaft
end of the motor, not on the fan end.
Figure 5-17. Disassembled Motor (D30A Motor Shown)
32
TRIVAC "A" Manual, Edition L