Warning – Gast SDR6 User Manual
Page 3

3
Start Up
Operate blower for an hour and then check:
1. Ambient temperature – Check room and
discharge air temperatures. Increased room
temperatures may require stronger ventilation
especially for larger blowers. Exhaust air
should not exceed 215ºF (102ºC) for all
blowers less than 3.5 Hp. Exhaust air should
not exceed 275ºF (135ºC) for all blowers
above 3.5 Hp.
2. Working pressure and vacuum values – Adjust
relief valve pressure or vacuum setting, if
needed.
It is your responsibility to operate this product at
recommended pressures or vacuum duties and
room ambient temperatures.. Do not throttle
discharge or suction pipe to reducer capacity.
Throttle will increase differential pressure causing
increasing power absorption and working
temperatures.
OPERATION
Injury Hazard
Install proper safety guards as needed to prevent
any close contact with blower suction area.
Keep fingers and objects away from openings and
rotating parts.
Product surfaces become very hot during operation,
allow product surfaces to cool before handling.
Air stream from product may contain solid or liquid
material that can result in eye or skin damage,
wear proper eye protection.
Wear hearing protection. Sound level from some
models may exceed 85 dBA.
Failure to follow these instructions can result in
burns, eye injury or other serious injury.
WARNING
MAINTENANCE
Electrical Shock Hazard
Disconnect electrical power supply cord to drive
motor before performing maintenance on this
product.
Some motors are thermally protected and will
automatically re-start when protector resets.
If product is hard wired into system, disconnect
electrical power at the circuit breaker or fuse box
before performing maintenance on this product.
Failure to follow these instructions can result in
death, fire or electrical shock.
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WARNING
It is your responsibility to regularly inspect and
make necessary repairs to this product in order to
maintain proper operation. Make sure that pressure
and vacuum is released from product before
starting maintenance.
Injury Hazard
Product surfaces become very hot during operation,
allow product surfaces to cool before handling.
Air stream from product may contain solid or liquid
material that can result in eye or skin damage,
wear proper eye protection.
Failure to follow these instructions can result in
burns, eye injury or other serious injury.
WARNING
The separate drive electric motor and blower need
periodic cleaning to remove accumulated dust and dirt.
If they are not cleaned, this can result in excessive
vibration, an increase in temperature or can reduce the
service life of the system.
Check filter elements and clean motor and blower after
first 500 hours of operation. Replace filter elements.
This one procedure will help assure the productʼs
performance and service life.
An increase in the differential pressure across an inlet
filter indicates its getting clogged. Clean the inlet air
filter as often as needed, blowing down against the
current to clean it. A dirty filter cartridge causes a high
intake resistance resulting in an increase of differential
pressure, absorbed power and working temperature.
Failure to clean replace these filters will result in
excessive pressure drop, a reduction in system air flow
and the blower will run hotter.
Power must be de-energized and disconnected
from the drive motor before servicing. Be sure all
rotating parts have stopped, electrical shock or
severe cuts can result if hazard is ignored.
WARNING