Varian DS102, Instruction Manual

Page: 38 / 83

TECHNICAL INFORMATION
NOTE
The pump’s component parts are modular and therefore fully interchangeable. Whenever parts have to re-
placed, please specify in the order:
- Pump type
- Serial number (marked on pump identification plate).
- Reference number on the detailed diagram, name and part number as indicated on the spare parts and
accessories list (section
SPARE PARTS LIST of this manual).
To simplify maintenance work, two kits have been devised.
The Gaskets Kit, containing all the gaskets recommended for substitution after disassembly of the pump and
the most commonly used removable parts.
You are advised to keep this kit in a dry room, away from heat and light (sun and UV rays) in order to prevent
hardening of the elastomer parts.
The Maintenance Kit, including, as well as the Gaskets Kit, the 1st and 2nd stage vanes and other parts that it
may be necessary to replace when overhauling the pump completely. These parts have a life of approx. two
years under conditions of normal operation.
PUMP TYPE
KIT
DS102 1Ph DS202 1Ph DS302 1Ph
DS402 1Ph
DS402 3Ph DS602 1Ph
DS602 3Ph
ORDER
CODE
GASKETS KIT X X X 949-9370
GASKETS KIT X X 949-9371
MAINTENANCE KIT X 949-9380
MAINTENANCE KIT X X 949-9381
MAINTENANCE KIT X X 949-9382
2. Before reassembling the pump, all parts must be cleaned thoroughly with a soap and water solution and
rinsed with demineralized water.
CAUTION
Particular care must be taken in cleaning the lubrication ducts and oil passage nozzles, which must always be
kept free of impurities.
CAUTION
Take care that the soap and water solution does not remain in the various cavities and recesses of the pump,
in the blind holes in particular.
3. Then dry the parts, by heating where possible but without using compressed air (it generally contains pol-
luting substances), taking care not to exceed a temperature of 80 °C.
4. The sequence of reassembly is the inverse of the disassembly operation. Take the same precautions:
- Spread some clean oil of the same type as used to lubricate the pump over the different parts, in par-
ticular the inner lip of the oil seal, the bushings and vanes.
-
If the oil seal has the dust-block lip, 2/3 fill the area between the two lips with ISOFLEX TOPAS
NB5051 grease.
CAUTION
Do not allow the grease into the area of the circumferential spring.
33 87-900-937-01(F)