4
5.
Maintenance and inspection
No special maintenance or inspection is required, but be careful not to let dust in the grease.
Also, check and clean it so that dust and sand do not adhere to the indicator mounted to the
grease checker and the grease nipple. When lubricating from the grease nipple, wipe the grease
nipple and the tip of the grease gun nozzle cleanly before connecting the nozzle to lubricate.
In addition, grease for lubrication is applied to the indicator, and the grease inside is adhered
thinly. It is within the normal specification range that grease is attached to the indicator.
Due to the structure of the indicator, which keeps the internal seal lubricated and operates
smoothly, internal-grease and oil may adhere to the indicator during use (when the indicator
reciprocates). If internal-grease and oil are accumulated on the top of the main unit while
repeating the operation of the indicator, clean it regularly.
6.
Operating method and precautions for use
①
If the back pressure from the bearings behind the grease checker is high, it may be pushed
back by the back pressure when the indicator attached to the grease checker is reset. Please
reset after a while, or push down the indicator all the way to release the grease inside.
②
If there is a pipe after the grease checker, the pressure loss of the grease will occur
depending on the length and diameter of the pipe. If the pressure loss of the grease pipe is large,
reset it after a while, or push down the indicator to the end to release the grease inside, as in the
case of
①
.
③
If the indicator is pushed back even after performing (1) or (2), mount a check valve to the
grease checker supply port. By installing a check valve, you can reduce the phenomenon of
pushing back when the indicator attached to the grease checker is reset.
④
It is also possible to detect a high pressure condition by installing a check valve at the grease
checker supply port. By the check valve, when the indicator attached to the grease checker is
pushed in, the pushed-in grease will flow to the bearing side. In case it is normal, pushing the
indicator will keep it in that state, but if the bearing is under high pressure due to back
pressure, etc., the indicator will not be pushed in or will be pushed back immediately. In this
state, the back pressure on the bearing side is high, and it can be judged that it is a high
pressure state.
⑥
While the grease checker is in use (when the indicator reciprocates), internal grease and oil
will adhere to the indicator, but this is due to the structure in order to maintain the lubricity of
the seal part and to operate smoothly. This is within the normal specification range that grease
is attached to the indicator. (5. Also described in maintenance and inspection)
⑥
If the grease checker is not used for a long time, the sliding surface of the indicator attached
to the grease checker and the sliding O-ring may lose lubrication and stick to it. In that case,
turn the indicator push-in button to remove it.