Mts Series 647 Hydraulic Wedge Grips Manuel d'utilisateur télécharger pdf (Page 94)

Hydraulic Hoses and Fittings

Check the hydraulic hoses and fittings monthly. Ensure that hoses are routed properly and not wearing. Also

ensure fittings are not leaking.

Wedges

After approximately 100 lock and release cycles, remove the wedges from the hydraulic wedge grips and

apply an anti-seizing compound to the edges of the wedge which contact the wedge chamber and grip piston.

1. Remove the wedges from the grip chamber.

2. Apply a thin layer of lubricant to the edges of the wedge which contact the wedge chamber and grip piston;

see the “Temperature ranges” for the recommended lubricant.

The edges of the wedge which contact the chamber and piston and the cap screws securing the specimen

guides on the wedges should be lubricated after approximately 25 hours of operation or after the test.

3. For Model 647.250 Grips, also apply a thin layer of lubricant to the bracket surface that contacts the spring

block.

4. Repeat Steps 1 and 2 (and 3, if applicable) for the other grip.

5. Replace each wedge into the grip.

Water Cooling Components

If the grips are used in an elevated temperature environment, check the water cooling tubing and fittings

weekly. Ensure that tubing is routed properly and not wearing. Also ensure fittings are not leaking.

Daily Inspections

Ensure that hoses are routed properly, not wearing, and the fittings are not leaking. Hoses must be routed

as to avoid direct heat sources, moving or abrasive equipment.

94 Series 647 Hydraulic Wedge Grips Reference Manual

Maintenance

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Mts Series 647 Hydraulic Wedge Grips Manuel d'utilisateur Page 94