Mts Series 311 Load Frame Manual do Utilizador descarregar pdf (Página 51)

Maintenance Intervals

Series 311 Load Frame Maintenance

Maintenance Intervals

The following table lists the recommended interval for each of these procedures.

What to Do When to Do It

How to Do It

For maintenance items listed that do not have a corresponding procedure in this manual, call the MTS

HELPLine.

Making daily inspections

Before the start of each day’s testing. See “Making Daily Inspections” on

page 52.

Cleaning the load frame

columns

When the columns become greasy or

dirty.

See “Cleaning the Columns” on page

53.

Preventing rust

Depends on the operating environment;

more often in humid environments.

See “Preventing Rust” on page 54.

Checking the

accumulators’ precharge

pressures

At least once a month; more often as

required by operating conditions.

See “Checking the Accumulators’

Precharge” on page 55.

Bleeding the hydraulic

lift cylinders

When the crosshead begins to move

roughly; if the sealed side of the

hydraulic supply is opened to air.

See “Bleeding the Hydraulic Lift

Cylinders” on page 56.

Replacing the hydraulic

lift cylinder seals

†

† This cannot be repaired by the customer; call the MTS HELPLine.

When hydraulic fluid begins leaking out

of the lift cylinders.

Contact MTS Systems Corporation to

schedule service.

Adjusting the hydraulic

locks

When the crosshead sticks or moves

jerkily on the column.

See “Adjusting the Hydraulic Locks”

on page 59.

Replacing the hydraulic

lock seals

†

When hydraulic fluid begins leaking

from the locks.

Contact MTS Systems Corporation to

schedule service.

Aligning the force

transducer

After installing the actuator or force

transducer; when a better alignment

between the two is desired.

See “Aligning the Force Transducer”

on page 61.

Servicing the actuator

†

When the actuator begins leaking

hydraulic fluid or its performance

becomes poor.

(see your actuator manual)

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