Buchi DuMaster D-480, Руководство по эксплуатации

Страница: 202 / 354

Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG
8 - Maintaining the instrument 202

Press the lower half shells out of the ball valve casing by means of the "knock-out".
Cleaning, assembling and installing the ball valve.
Note
The following section is a continuation of Removing and dismantling the ball valve. All steps
described there must already have been performed.
Process
The section is divided into the following phases:

Cleaning the half shells and ball

Assembling the ball valve

Mounting the ball balve

Preparing the Instrument for measurements
Requirements
Before starting work, the following requirements must be met:

Keep the following tools ready:

Hook wrench

Phillips screwdriver / Allen wrench 3 mm

8 mm open jaw wrench.

Keep acetone ready to clean components.

The ball valve must have been removed.

The instrument must have cooled down and be disconnected from the mains when you install the
ball valve again. See step 1 in Removing and dismantling the ball valve.
Safety instruction
Strictly observe the safety instruction "Hot instrument parts" under
Warning notes during operation
(on page 24).