Gilson 8in Sieve Shaker Manual
5
3.6 Reassembly of the Unit
To.reassemble.the.unit,.follow.the.above.described.sequence.
in. reverse,. taking. caution. to. reestablish. drive. belt. alignment.
and.spacing.of.components..Use.Section.7.0.as.a.guide.
4.0 TROUBLESHOOTING
•..
Unit Fails to Operate:
First,.establish.that.power.is.being.delivered.to.the.unit..The.
wall.outlet.should.be.tested.with.a.meter.or.other.device.for.
evaluating.current.
Check.the.Timer.to.make.sure.it.is.functioning.properly...If.
the.Timer.is.not.functioning,.order.a.new.one.from.Gilson.
Next,. loosen. the. Motor. Mounting. Bolts. and. remove. the.
Drive.Belt.
If.the.motor.still.will.not.run,.continue.with.the.motor.removal.
procedure.described.in.Section.3.3..To.gain.access.to.the.
motor. terminal. cover. plate,. remove. the. plate. and. test. for.
power.cord.continuity..If.the.power.cord.is.not.at.fault,.then.
repair.or.replace.the.motor.
•..
Drive Shaft Binding is Evident:
Remove. and. inspect. the. bearings,. bushings,. and. other.
components. attached. to. the. Main. Shaft.. To. disassemble.
the.drive.shaft.components,.see.the.procedure.outlined.in.
Section.3.0..
Note belt alignment and component spacing
for reassembly.
•..
Unit Operates but is Excessively Noisy:
Excessive.noise.may.come.from.loose.sieve.retainer.clamps,.
bolts,.nuts,.egg-shaping.of.bushings,.or.worn.bearings..Al-
ways.check.for.loose.nuts,.bolts,.and.clamps.before.disas-
sembling.the.SS-15’s.components..Replace.the.frame.guide.
bushing.(21).when.the.bushing.makes.a.flopping.sound.
5.0 SIEVING ACCURACY
Accurate. sieving. is. achieved. by. applying. a. proper. combina-
tion.of.equipment,.including.standard.quality.test.sieves,.and.
sieving.technique.
The following suggestions will help improve test results:
1.. Determine. suitable. test. times. for. each. type. of. sample...
One. method. is. to. shake. each. test. sieve. singly. with. a.
pan. (by. machine. or. by. hand). for. an. additional. minute.
following. a. test.. If. a. significant. percentage,. say. 1–2%,..
of.the.retained.materials.passes.with.the.added.sieving.
time,.test.time.should.be.increased.
2.. Use. only. sample. types. within. the. design. range. of. the.
test. apparatus.. The. SS-15. has. an. approximate. design.
range. of. No.4–No.50. test. sieve. sizes,. but. acceptable.
results. may. be. possible. over. a. wider. range. depending.
on. sample. specific. gravity,. particle. shape,. and. fraction.
of.sample.that.is.outside.the.normal.design.range.
3..
DO NOT
. overload. test. sieves.. Maximum. loading. at.
completion. of. sieving. is. about. 132cc. on. individual. 8in.
(203mm).test.sieves.in.the.design.range..If.the.loading.is.
greater,.either.reduce.the.starting.sample.size.or.insert.
an. extra. intermediate-height. test. sieve. to. reduce. load-
ing.on.the.critical.test.sieve.
4.. Check. test. sieves. periodically. to. ensure. that. the. wire.
cloth.is.in.accordance.with.ASTM.E11.standards..A.Gil-
son.TSA-175.Pocket.Magnifier.is.useful.for.spot.check-
ing.for.flaws.and.for.mesh.size.identification..Calibration.
beads.are.also.available.for.precision.work.where.effec-
tive.test.sieve.opening.ratings.are.determined.for.each.
test.sieve.rather.than.using.the.nominal.size.ratings.
6.0 TECHNICAL SUPPORT
Contact.Gilson.Technical.Support.for.assistance.with.applica-
tions,.operation,.maintenance,.or.repair.
•.
Telephone:
800-444-1508
•.
Email:
•.
Web:
.globalgilson.com
