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SGSM
Disassembling and
Cleaning the Test Cell
The test cell must be cleaned immediately after every test. Any cement left in
the test cell will harden and could damage the equipment. Clean all surfaces
of the test cell with soap and water.
Remove all o-rings, snap rings, and bushing and clean them individually.
Carefully inspect them and discard any that show damage or wear.
If the cement sets during an SGSM test, the bob and bob shaft will set with
the cement in the test cell. If this happens, it may be possible to remove bob
without damaging the equipment.
There are two procedures for removing the SGSM assembly from the cell
that has hardened cement. The first procedure attempts to save the magnet
and shaft. This procedure will only work if the threads on the shaft have
been heavily greased. The shaft will need to twist free from the bob and any
cement that has set around it.
If the first procedure fails, then the second procedure will remove the magnet
and shaft from the cell. However, both the magnet head and the bob shaft will
be destroyed and will not be reusable. The bob itself should be reusable for
further testing.
To avoid damaging the equipment, make sure all surfaces that will be
in contact with the cement are covered in grease before assembling the
cell.
Procedure 1:
Tools Needed:
- 10" Crescent Wrench
-
⅝" Wrench
-
½
" Strap Wrench
- Soft Face Hammer
- Cell Cap Wrench
- Heavy Duty Vice
- Small Sledge Hammer
- Rock Chisel
- Knock Out Tool
A hardened cement plug
can only be pushed out of
the cell from the top to the
bottom. Secure the test
cell in a heavy-duty vice.
Top of Cell
Taper
Bottom of Cell
