BTG Pulptec SBT-2400, Руководство пользователя

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5.3 - Repair
48 SBT-2400 Service Instructions M2041/5en
©BTG 2006
5.3.5.2 Mount the New O-Ring Seal
1. Inspect the new O-ring seal to ensure the quality is acceptable (no burrs or
other deformations).
2. Lubricate the O-ring seal lightly using silicon grease or vaseline on the in-
side and outside.
3. Note the Raw signal in the Shear force trim window in the JCT-1200.
4. Fit and the O-ring seal onto the spindle and push it down.
Use a plastic pipe with an inner diameter of 14 mm and outer diameter of
20 mm (approximately 60 mm long) to push the O-ring seal into its cavity.
NOTE!
There should be no sharp edges on the end of the pipe. This could ruin
the O-ring seal.
5. Move the spindle in the measuring direction.
If the value has changed more than approximately 4.0 units, use a screw-
driver to lift the O-ring, turn it slightly in a single direction, and use the pipe
to press down the O-ring seal again.
Remove the pipe and verify the reading again. It is possible to adjust it by
“turning” the O-ring. Repeat this action by turning the O-ring in the one sin-
gle direction until the reading is within the tolerance.
6. Fit the washer in front of the O-ring seal and tighten it with the three screws.
NOTE!
Make sure the screws are equally tightened so that the force on the O-ring
seal is even as the washer pushes it down.
7. Verify the reading to make sure it is within ±8.0 units.
If it more than ±8.0 units, loosen the screws slightly, turn the washer, and
re-tighten the screws.
8. Mount the blade on the transmitter. See section 5.3.2.2: Mount the Blade
and Deflector .
9. Make a basic calibration of the transmitter. See section 5.2.3.1: Basic
Force Calibration with JCT-1200 .
Spare parts required:
O-ring seal
Tools required:
Pipe, plastic
Consumable required:
Locking paint
Silicon grease
Loctite 222