Maintenance; Troubleshooting; Specifications - Gilson SS-20 Operating Manual

Before performing maintenance or repairs on the sieve shaker, ALWAYS read and understand the safety, operating, and
maintenance instructions.
Symptoms
No power to display, machine
will not operate
Display is lit, but motor does not
run
Display is lit, motor runs, but
machine does not operate
properly
Excessive noise and vibration
Excessive loss of specimen fines
during testing
Inconsistent of unexpected test
results
Contact Gilson technical support for assistance in diagnosis and repair of problems with the Gilson Rotary Sifter.
Particle Size Range:
No.4—No.200 (4.75mm—75μm) Nominal (Extended ranges possible, depending on material type.
Sieve Capacity:
8in or 200mm Diameter
10 Full-Height
20 Half-Height 12in or 300mm
6 Full-Height
10 Intermediate-Height
13 Half-Height
Controller:
Gilson Count-Down Timer, 99min:59sec x 1sec. (Maximum 99hr:59min x 1min).
Motor:
1/4hp, 1725rpm, Continuous Duty
Power Requirements: SS-20: 115V/60Hz AC; SS-20F: 230v/50Hz
Dimensions:
19x24x58in (483x610x1473mm), WxDxH
Weight:
195lb (88kg)
Ship Weight:
215lb (98kg)
21 Washington Ave
7
Scarborough, ME 04074

4.0 MAINTENANCE

5.0 TROUBLESHOOTING

GILSON ROTARY SIFTER TROUBLESHOOTING
Possible Causes
Power disconnected
Door not closed completely
Faulty door safety switch
Faulty connections/wiring
Faulty timer
Faulty motor
Loose or broken drive belt
Pulley(s) loose on shaft(s)
Turntable installed in wrong opening
Sieve size selection knob not set correctly
Sieve stack not seated properly
Turntable installed in wrong opening
Improperly adjusted or broken drive
components
Sieve size selection knob not set correctly
Damaged or deformed sieve frames or
flanges
Sieves not seated properly
Damaged/out of specification sieve cloth
Blinded sieve mesh
Improper tapper operation
Insufficient test time
techsupport@gilsonco.com

6.0 SPECIFICATIONS

Reconnect to power supply
Close door completely
Check connections and/or replace door
safety switch
Trace circuits with electrical meter
Diagnose timer output/connections
Replace motor
Adjust tension or replace belt
Tighten set screws on shaft bearings
Install turntable in correct opening
Set selection knob to correct size
Seat sieve stack properly
Install turntable in correct opening
Check belts, pulleys, bearings and rods.
Adjust or replace as required
Set selection knob to correct size
Replace damaged or deformed sieves
Seat sieves properly
Replace sieves
Clean sieve
Adjust or repair tappers
Increase test time
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Solutions
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