© 2018 Novatec, Inc. All Rights Reserved
Page 9
Instruction Manual VPD-25 IM 12 FEB 2018
11.0 BLOWER MAINTENANCE
ROOTS/DRESSER BLOWERS
Before starting pump, be sure oil has been put in the gearbox, as OIL MAY HAVE BEEN DRAINED
FOLLOWING FACTORY SHOP TESTS.
NOTE: ALL BLOWERS SENT AS REPLACMENTS ARE SHIPPED WITHOUT OIL.
Root’s recommends using lubrication oil manufactured by Royal Purple that is called SYNFILM GT
220. The Novatec Part Number for this oil is 03-0991 and is available in quart containers. If you
choose to use another brand of oil, be sure it is a good grade industrial type rust, oxidation, and foam
inhibited, non-detergent oil such as Mobil DTE BB, Texaco R&O 220, Amoco 220 or equal. See Table
below:
Recommended Oil Grades
Ambient
Temperature
°
F.
Viscosity Range
SSU at 100
°
F.
ISO No.
(
°
C)
(38
°
C)
Above 90
°
(32
°
)
1000 – 1200
320
32
°
to 90
°
(0
°
to 32
°
)
700 – 1000
220
0
°
to 32
°
(-18
°
to 0
°
)
500 – 700
150
Below 0
°
(-18
°
)
300 – 500
100
