Operating Instructions
BG-250G11/G13
Maintenance
November 2004
© Copyright Blastrac
45
Revision (A) 12-23-04
7.5 Bearing
Unit-Coupling
Fig. 7.2 (electric unit shown)
The bearing-unit (1) is a very important component of the machine; you should pay
special attention while maintaining and repairing. In the case of a normal use, the
bearing must be lubricated every 3 months. If you intensify the use, the bearing
must be lubricated al least once a month.
In order to lubricate it, give between 3
and 4 strokes grease with a lever type hand gun over the lubricating nipple (2) in
the bearing. After lubricating, put the machine on the jack stand (4) let the machine
run approximately 5 min. to squeeze out the excess of grease from the housing (1)
at the points shown (3). Finally wipe the excess of grease with a cleaning cloth
(machine in Maintenance Mode).
We recommend using grease that is appropriate for a temperature range
between 77-270° F (25-130 ° C).
Most lithium based greases will be appropriate. Consult the label for temperature
range.
If grease continues coming out during the operation of the machine, the bearing
unit must be overhauled or replaced.
Do not use any low-grade grease. Low grade grease will overheat
the bearing unit causing hot grease to escape and damage to the
bearing unit.