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

VALVE STOP
(1)1)
VALVE PLATE
(501
SECOND STAGE
PUMP CYLINDER
(461
'I
I
[I
OIL NOZZLE
(561 ITA·7.9
NOTE: The valve plate (50) on the D30A/D60A/D90A pump models has four tabs rather than two.
Figure 5-14. Removing the Valve Stop and Plate (D2A Pump Model Shown)
0-13 Using a U.S. standard wrench, unscrew and remove the four nuts and washers that attach the motor (73) to
the coupling housing (11). Remove the motor from the coupling housing (see Figure 5-15).
0-14 For the D2A, D4A, DBA, and D16A pump models only, pull the elastic element (36) off of the coupling (37)
mounted on the motor shaft (see Figure 5-15).
For the D30A, D60A, and D90A pump models only, pull the coupling ring (36) off of the coupling (37) mounted
on the motor shaft (see Figures 5-11, 5-3, and 5-15).
0·15 CAUTION: DO NOT USE CHANNEL LOCK PLIERS TO REMOVE THE OIL LEVEL GLASS ASSEMBLY
FROM THE COUPLING HOUSING. USING CHANNEL LOCKS COULD RESULT IN DAMAGE TO THE 01 L
LEVEL GLASS ASSEMBLY.
11
D30A/D60A
COUPLING AND
COUPLING RING
Figure 5·15. Coupling Housing and Motor (D2A Pump Model Shown)
lTA·3.16
26
TRIVAC "A" Manual, Edition L