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6.0 Maintenance
6.1
General Maintenance
WARNING:
Isolate power before starting any mainte-
nance procedures to prevent electrical shock
or accidental starting of equipment.
CAUTION:
Never perform any maintenance functions
while the unit is in operation.
Table 6.1 Maintenance Schedule
Item
Exhaust drip leg
Oil / Oil filter (Synthetic)
Exhaust filters
Purge Filters
Inlet filter screens / inlet fil-
ters
Motor bearings*
1.5 - 10 HP motors
15 - 20 HP motors
25 HP motors
Coupling
1. Maintenance intervals depend on the pump's use and ambient conditions. Monitor conditions of
oil regularly, and change when recommended or necessary.
2. (*) Motors have been lubricated at the factory. Motors that do not have the re-grease capability
(no grease fittings) are factory lubricated for the normal life of the bearings.
Refer to the service manual for grease specifications.
Lubricated Rotary Vane Laboratory Vacuum Systems
Frequency
Daily/Adjust as needed
2,000 hours
Check Monthly
Replace Annually
Check Monthly
Replace Annually or as needed
Check Monthly
Replace Annually
Annually
Every 2 years
WARNING:
Pumps that have reached normal operating
temperature may have a high surface tem-
perature.
Do not perform any maintenance until after
a sufficient cool down period.
Action
Check for accumulated moisture
Change oil and replace oil filter
Check monthly and replace if required
Replace exhaust filters
Inspect
Replace the inlet filter elements
Clear as required
8 grams of grease per fitting
17 grams of grease per fitting
23 grams of grease per fitting
Inspect coupling rubbers for wear.
Replace as needed.
6-1
4107 9021 88.01
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