LIST OF TABLES
Table
Title
Page
SECTION 4 -
STARTING,
OPERATING,
AND
MAINTAINING
THE
PUMP
4-'
Technical Data
...............................................................
.
12
SECTION 5 -
DISASSEMBLY,
CLEANING,
AND
ASSEMBLY
INSTRUCTIONS
5-1
Rotor, Bearing, Shaft, and Vane Critical Dimensions
......................................
.
30
5-2 Parts Required
for
Installing Rotational Lock Bearing
.....................................
.
32
SECTION 6 -
TROUBLESHOOTING
6-1
Troubleshooting Chart
..........................................................
.
43
LIST OF FIGURES
Figure
Title
Page
SECTION 1 -
INTRODUCTION
Sketch
1-1
Pump
Identification
Plate.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1-1
Location
ofthe
Identification
Plate, the Oil
Fill
Ports and the Oil Drain
Ports.
. . . . .
..
. . . . . . .
..
. . .
..
. . . 4
SECTION 2 - PRINCIPLES OF
OPERATION
Sketch
2-1
Cross Section
of
the
Gas
Ballast Valve on the
DBAJAC
through
D90AJAC Extreme-Corrosive Service
Pumps
.......................................................
:.................................
7
2-1
D4A
Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
5
2-2 High Vacuum-Stage Pump Cylinder
with
Rear End Plate Removed. . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
5
2-3
Gas
Ballast Valve and Second
Stage
Pump Cylinder
with
Front
End Plate Removed. . . . . . . . . . . . . . . . .
..
6
SECTION 5 -
DISASSEMBLY,
CLEANING,
AND
ASSEMBLY
INSTRUCTIONS
5-1
5-2
5-3
5-4
5-5
5-6
5-7
5-8
5-9
5-lOA
5-10B
5-11
5-12
5-13
5-14
5-15
5-16
5-17
5-18
Assembled
Pump
(D16A
Pump Model Shown)
..........................................
16
Module Attached
to
Coupling Housing
(D2A
Pump Model Shown) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
17
Module,
Side
View
(D2A
Pump Model Shown) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
18
Front
End
of
Module Minus Coupling and Centrifugal Switch
(D2A
Pump Model Shown). . . . . . . . . . . . .
..
19
Removing the Cylindrical
Pins
from
the Module
(D2A
Pump Model
Shown).
. . . . . . . . . . . . . . . . . . . . .
..
20
Rear
End
of
Module
Minus the Disk
(D2A
Pump Model Shown). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
20
High Vacuum Stage Pump Cylinder
(D2A
Pump Model
Shown).
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
21
Second Stage Pump Cylinder
(D2A
Pump Model Shown) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
21
High Vacuum Stage
Rotor
Removed
from
the Shaft
(D2A
Pump Model Shown)
....................
, 22
Cap
End
of
Gas
Ballast Valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
23
Tube End
of
Gas
Ballast
Valve.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
23
Miscellaneous Disassembled
Parts
...................................................
.
Removing
the
Radial Shaft
Seal
from
the End Plates
(D2A
Pump Model Shown)
....................
.
24
25
D4A
Module Showing Retaining Bracket and Valve Plate
...................................
, 25
Removing
the
Valve Stop and Plate
(D2A
Pump Model Shown) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
26
Coupling Housing and
Motor
(D2A
Pump Model Shown) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
26
Removing
the
Oil Level
Glass
from
the Coupling Housing
(D2A
Pump Model Shown) . . . . . . . . . . . . . . .
..
27
Disassembled
Motor
(D30A
Motor
Shown). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
. .
..
32
Rotors/Shaft/Center Bearing Plate Assembly
(D2A
Pump
Shown).
. . . . . . . . . . . . . . . . . . . . . . .
..
35
5-19 Driving the Long Cylindrical
Pins
that
Align the
HV
Stage
Cylinder
and the Center Bearing
(D2A
Pump Model Shown)
................................
:-;
. . . . . . . . . . . . . . . . . . . .
..
36
5-20 Pulling the Second Stage Cylinder
Tight
Against the Center Bearing
(D2A
Pump Model Shown). . . . . . . . .
..
38
5-21
Driving the
Short
Cylindrical
Pins
that
Align the Rear End Plate and the
HV
Stage Cylinder
(D2A
Pump Model Shown) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
39
5-22 Using a
Shaft
Sleeve
to
Install the Radial Shaft
Seal
into
the
Front
End Plate
(D2A
Pump Model Shown) . .
..
40
5-23 Reassembling the Module
to
the Coupling Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
42
SECTION 7 - SPARE PARTS
LIST
7-1
7-2
..,
Disassembled Pump
(D2A
Pump Model Shown) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
56
Exploded Isometric Drawing of a D30A
Pump
Model.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
73
TRIVAC "A" Manual, Edition L
t
"