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

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Symptoms
Trouble Area
Probable Cause
Recommended
Corrective Action
Repair Steps*
1. The lubricating fluid
is milky white or dark
and the pump fails to
reach its ultimate
pressure and runs hot.
Condensation in
lubricating fluid.
Gas ballast valve (17)
is closed.
Gas ballast valve (17)
is clogged.
Run pump with intake tube (1) closed off and gas
ballast valve (17) open until vapors are expelled.
+Clean gas ballast valve (17).
Install new spring (25). flat gasket (24), and
nonreturn valve (23). or valve (19) or valve
plate (32) as necessary.
Sec. 4·2
B·5, 0-1, & F-4
B-5, 0-1, & F-4
Pump temperature is low.
Run pump with gas ballast valve (17) open until
pump is warm.
Sec. 4·1·2
Insulate oil casing (12).
Vapor in gas being pumped
exceeds pump tolerance.
Add condensate trap to intake tube (1) and/or
exhaust port (6).
B-1 & Sec. 3-3
2. The lubricating fluid
has an unusual color,
is very dark, dirty,
turbid, or contains
flakes.
Contamination of
the pump fluid.
Process is dirty.
Change lubricating fluid.
Add OF-3000 or OF-lOOO to purify fluid and
prevent reoccurrence of problem.
or
adsorption trap, AK condensate trap, or
molecular filter to intake tube (1) to prevent
reoccurance of problem.
Sec. 4-3-2
B-1 & Sec. 3·3
For D2A. D4A. D8A & D16A pump models
only, replace oil filter (35).
B-5 & B-6
It
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!
Pump fluid has
broken down.
Wrong pump fluid is being
used.
Pump ran low on pump fluid.
Large vacuum leak.
Pump is running continuously
above 112 Torr.
+Clean pump and charge it with the
recommended pump fluid.
+Clean pump and charge it with the
recommended pump fluid.
Repair leak, +clean pump and change pump
fluid.
+Clear) pump, change pump fluid, and run pump
at lower pressure.
Sec. 4-3·2
Sec. 4·3-.2
Sec. 4-3·2
Sec. 4-3-2
contains the disassembly steps required to perform the corrective action. Some critical assembly steps are also listed.
1$ not specified, the steps are located in Section 5.