MOTOR BEARINGS
Motors with frame size >200L (>30kW) have grease fittings
l grease intervals: twice a year unless otherwise shown on the nameplate of the motor
l grease products: see below
The bearings should be lubricated only with a hand grease gun. Do not use high pressure grease guns, since they
may rupture the bearing seals. When lubricating, purge the old grease from the bearing by gradually adding grease
until a bead of new grease appears at the seal.
GREASE PRODUCTS
Shell Alvania grease RL3 -20°C to +120°C
Texaco Multifak Premium 3 -30°C to +140°C
Klüber Isoflex LDS Special A -50°C to +120°C
Mobil Mobilith SHC 100 -40°C to +175°C
Total Fina Elf Multis 3 -20°C to +120°C
Grease products
ADJUSTABLE MOTOR BASE
The motor base adjusting screw (see figure below) should be coated every six months using a good quality
corrosion inhibiting grease, such as one of those recommended for lubricating the fan shaft bearings.
Adjustable motor base
1. Motor base slides
2. Adjusting screw
Cleaning procedures
MECHANICAL CLEANING
Keeping your evaporative cooling equipment (and the associated system) clean will maintain its efficiency and
help to prevent uncontrolled bacteriological growth. The recommended cleaning procedures are described below:
1. Disconnect fan and pump motor(s) and shut off make-up supply.
2. Remove screens, eliminators, access panels, doors and drain system. Do not remove sump strainer.
3. Clean debris from exterior and fan(s) with soft brush, if necessary use water and soap.
4. Clean interior with (soap) water and soft brush, if necessary use high pressure water jet.
5. Remove any debris from water distribution system and clean any nozzles if clogged. If necessary nozzle and
grommet may be removed for cleaning.
W W W . B A L T I M O R E A I R C O I L . E U
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5 Maintenance Procedure
5 Maintenance Procedure
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