Gilson TS-3 - Maintenance; Lubrication

10
Fine Aggregates
The Testing Screen is designed primarily for operation in
the coarse size range of 4in to No.4. Separation of ner
materials is less e󰀩cient and ne particles may become
trapped behind side liners of trays causing test errors�
For separations of ne aggregates from No.8 through
No�200, loading at completion of sieving should be limited
to the ASTM C 136 level of 4g per square inch of sieving
surface, assuming a material about the density of sand�
This is equivalent to loading 1,350g (3lb) per tray and will
result in machine capacity in the ne aggregate range of
under 20lb per test unless sizes are evenly distributed
among the trays�
Somewhat larger amounts of material may be loaded if the
Testing Screen is used for mass separation rather than for
testing� Sharpness of separation will decrease as loading
is increased, and overloads can cause damage to valuable
wire cloth�
For applications where test materials are limited to ne
series sizes, or where special screening problems exist-
because of softness or density, the Testing Screen may be
factory-equipped with a Speed Variation Accessory�
A low-amplitude eccentric shaft is also available and rec-
ommended when working exclusively with friable materials�
The capacity of the Gilson Testing Screen is suitable for
most laboratory test sizing work. For eld laboratories
where mobility is important, Gilson o󰀨ers a Porta-Screen
®
�
For large-scale mass separation jobs involving hundreds
of pounds of material, and for automated testing, use the
Gilso-Matic
®
Screening Assemblies� See the Gilson Catalog
for further information�
Maintenance
Upper Connecting
Rod Bearings Access
Lower Connecting
Rod Bearings
Access
Lower Threaded Block
/Bearing Access
Top Cover
Pump Handle
Side/Back Cover
Fig. 4: Lubrication Access
NOTE: The person performing maintenance and/or
repairs on the Testing Screen is responsible for
safety and is required to read and understand the
safety instructions in this manual prior to commenc-
ing work�
All shields, guards and other safety devices must be prop-
erly replaced and secured upon completion of work� Only
parts supplied and/or approved by Gilson are acceptable
for use on the machine�
Lubrication
WARNING:
Disconnect power supply before
servicing or cleaning.
Most sample dusts are abrasive by nature� Daily lubrica-
tion and cleaning of the Testing Screen takes only a few
minutes, and will greatly extend its service life and reduce
down time�
Each Testing Screen is fully lubricated and test-run by
the manufacturer before it is shipped� However, periodic
lubrication is required�
Use a high-quality grease to lubricate the parts listed below�
Wipe away excess grease and dirt from around parts
after lubrication�
Wrist Pin Assemblies
At least daily, lubricate the wrist pin assemblies at the lower
ends of the connecting rods (Fig� 4)�
Access: Slot under front of top cover�