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1 Scope of application
iSHAN centralized lubrication systems are designed to lubricate ball bearings, flat
bearings, flat slideways, circular slideways, linear guides, cams, gears, chains, etc..
iSHAN centralized lubrication systems are suitable for the lubrication of various machines,
such as lathes, mills, presses, planner, grinder, etc. It is fit to control different lubricating
points at the same time against different machines.
The YET lubrication units are suitable for using lubricant with a viscosity range at 30 to 250
cSt during it is running. Only new lubricant shall be used.
The design of YET series is to operate intermittently with an interval-controlled supply of
lubricant to the lubrication point. The interval time can be set from 1 to 999 per
second/minute/hour. The lubrication time can be set from 1 to 999 per second. The default
time unit of lubrication unit is second for lubrication and minute for intermittence. The user
can adjust time for lubrication quantity.
The maximum discharge rate of YET-A1 pump is 200 ml/min.
The maximum discharge rate of YET-A2 pump is 150 ml/min.
The max. discharge pressure for YET-A1 series is 7kgf/cm
2
, and YET-A2 series is
15kgf/cm
2
. The lubrication unit contains a pressure relief valve in order to prevent injury,
death, or property damage. YET-A2 model operates with piston type distributors and
through dump valve release pressure from the main line at the interval time.
For safety, a pressure switch should be mounted to monitor the system. The pressure
switch monitors whether the required pressure build-up occurs in the centralized lubrication
system during the pump cycle time and detects any leaking or lubrication connection
damage. The level switch is design to monitor the filling level and shut down the lubrication
unit when the lubricant is insufficient. To get further safety, the lubrication unit can connect
to other monitored device properly to enhance the alarm system.
Warning ! The maximum lubrication time is less than 2 minutes and the
minimum intermittent time is more than 3 minutes.
2 Basic operation
2-1 Safety information
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