CleaverBrooks 4WI, Руководство по эксплуатации, обслуживанию и запасным частям

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750-211 (revised 2009)
Promethean Boilers, Model 4WI Manual 8-33
8.20 — Lubrication
8.20 — Lubrication
8.20.1 — Electric Motors
Manufacturers of electric motors vary in their specifications for lubrication
and care of motor bearings; however, their specific recommendations
should be followed.
Ball-bearing-equipped motors are pre-lubricated. The length of time a
bearing can run without grease added will depend on many factors, includ-
ing the rating of the motor, type of motor enclosure, duty, atmospheric
conditions, humidity, and ambient temperatures.
FIGURE 8-37.
Electric Motors
Complete renewal of grease, when necessary, can be accomplished by forcing out the old grease with the new
grease. Thoroughly wipe those portions of the housing around the filler and drain plugs (above and below bear-
ings). Remove the drain plug (bottom) and free the drain hole of any hardened grease which may have accumulated.
With the motor not running, add new grease through the filler hole until clear grease starts to come out of the drain
hole. Before replacing the drain plug, run the motor for 10 to 20 minutes to expel any excess grease. The filler and
drain plugs should be thoroughly cleaned before they are replaced.
The lubricant used should be clean and equal to one of the good commercial grades of grease locally available.
Some lubricants that are distributed are:
•
Gulf Oil - Precision Grease No. 2
•
Humble Oil - Andok B
•
Texaco - Multifak No. 2
•
Phillips - 1B + RB No. 2
•
Fiske Bros. - Ball Bearing Lubricant
•
Standard/Mobil - Mobilux No. 2
8.20.2 — Control Linkage
Apply a non-gumming, dripless, high temperature lubricant, such as graphite or a silicone derivative to all pivot
points and moving parts. Work lubricant in well and wipe excess. Repeat application at required intervals to main-
tain freedom of motion of parts.
NOTE: Siemens TEFC motors use a different and incompatible grease to those listed above.
NOTE: For Siemens motors: Contains re-greasable bearings. The shaft end (impeller end) requires the use of CB’s
high temperature auto grease system (PN 884-133) for proper lubrication.
The opposite shaft end (end opposite impeller) can be greased by the auto grease system or by hand pump, using two
or three pumps every three months with a grease compatible with a high temperature aluminum complex grease.