17
6.1. Precautionary Measures During
Maintenance Work
No liability for personal injury nor material
damage will be accepted for damages and
operational interruptions which have been
caused by improper maintenance; in addition,
all guarantees become invalid.
Whenever working on the pump ensure the elec-
tronic drive unit is disconnected from the mains
supply.
If necessary, remove pump from the system for
inspection.
➡
When working on the pump, always secure pump against
being switched on.
➡
When working with synthetic lubricants or with
substances which are toxic or are contaminated with
corrosive gases, the relevant precautions must be
observed.
➡
Clean pump parts only with alcohols. Do not use other
solvents.
Do not allow any liquids to enter into the inside
chamber of the pump.
This can damage the rotor blades!
6.2. Replacing The Lubricant
Usual intervals for lubricant replacements:
1... 2 years depending on the operating conditions.
The intervals for lubricant replacement are governed by the
operating conditions. Influential factors are operating tempe-
rature and the type of process medium.
During maintenance and repair work, process
related toxic gases and vapours can escape
from the lubricant which may become comtani-
mated with harmful substances (radioactive,
chemical etc.).
Please request safety instruction data sheets
for lubricants from Pfeiffer Vacuum.
☞
PLEASE NOTE
DANGER
CAUTION
CAUTION
☞
PLEASE NOTE
6. Maintenance
Changing the lubricant
➡
Allow the pump to cool to a safe temperature.
➡
Switch off and vent pump if lubricant is to be replenished.
➡
Unscrew lubricant drain screws 32 on both sides (valid for
pumps with revision index “E”) and drain lubricant;
otherwise dismantle lubricant reservoirs and pour out
lubricant.
➡
Screw in lubricant drain screws 32.
Cleaning the lubricant reservoir
➡
Dismantle both lubricant reservoirs 16 by unscrewing each
four screws 17 on the underside of the pump.
➡
Detach lubricant reservoir 16 horizontally from the pump
casing and drain off any residual lubricant into a suitable
vessel.
➡
If necessary remove the strainers from the lubricant reser-
voir and clean.
➡
After cleaning, refit the strainers and screw on lubricant
reservoirs.
➡
During strong contamination of the lubricant, exchange
lubricant reservoir completely.
Dismantling The Lubricant Reservoir And Changing The Lubricant
9
Sight glass
16 Lubricant reservoir
17 Screw
31 Lubricant filler screw
32 Lubricant drain screw (valid for pumps with revision index “E”)
16
9
32 31
17
16
Содержание OnTool Booster 150
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