Disassembly; Troubleshooting - Gilson SS-12R Operating Manual

Gilson Company, Inc.
The belt should be snug: Neither too tight nor too
loose. A snug fit assures longer life, less bearing wear,
and quieter operation than a belt which is too tight. A
loose drive belt may cause the unit to run too slowly
or in spurts. The drive belt should deflect 1/64 of the
value of the span of the pulleys. The pulleys should
be aligned to avoid excessive edge wear.
Never force or pry the belt over the pulley flanges.
Use disassembly steps 1-3.
3. Every two years or whenever disassembled, grease
the thrust bearing (#13) and the face of the cam (#31).
Perform disassembly steps 1-7 to access these parts.

4.2 Disassembly

1. Disconnect and lock out the power supply.
2. Locate the four cover-mounting screws, and remove
them. Remove right (timer side) section of the cover.
Inside the left cover section, locate two more mounting
screws on the cover flanges. Remove these screws
and the left section of the cover.
3. Loosen the four motor mounting bolts. Motor will slide
toward the left side of the machine, loosening tension
on the belt so that you can remove it.
4. Remove the four mounting cap screws (#16) from the
mounting plate (#17), and lift the entire unit out of its
case.
5. Unhook the two hammer springs (#23).
6. Remove the connecting link nuts (#41) and links (#40).
7. Remove the hammer post capscrews (#25), actuator
link screws (#36), bumper block capscrews (#20), and
lock ring (#19). Now you can lift the sieve platform
with main shaft out of its center housing (#15).
8. If you remove the cam shaft hangers (#27) for any
reason, reassemble exactly as removed. The roller
clutch block (#33) and one cam shaft hanger (#27)
contain overrunning clutches which must be installed
to allow correct rotation of the cam shaft (#29), or
serious damage will result.
Main bearings have permanent lubrication and are
sealed inside the main housing (#15). This main hous-
ing with bearings and hub should not be disassembled
in the field; replace them as a unit if necessary.

5.0 TROUBLESHOOTING:

Unit Fails to Operate:
Check motor, electrical connections, and timer. Replace
or reconnect as necessary. Check drive belt tension;
replace belt if worn.
Unit Runs, but Fails to Give Impact Tapping:
Remove covers, drive belt and mounting capscrews (#16).
Replace or reconnect hammer springs (#23) as required.
Unit Operates but is Excessively Noisy:
Disassemble through Step 4. Check resilient faces on
bumper block (#20) and replace block if necessary.
Unit is Unstable; Shakes or Walks Too Much:
a. Readjust level via leveling legs, and lock with lock nuts.
b. For Model SS-12R, be sure that weighted platform
adapter is used when using 8in diameter sieves.
c. Loosen and re-clamp the sieve stack.
d. Check sieve stack height. If over 20in, see Operating
Instructions.
Page 6
Gilson Sieve Shaker: SS-8R & SS-12R