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Ret ro fitti ng an d Ma inte nanc e I nstruc tions SI PLA CE HS -50 Fan wit h Inc reas ed Po wer, incl . A ir Filte r Bo x Issu e 0 7/01 2.4 Retro fit ting Pro cedur e 33 Fig. 2. 4.5 Pos ition of th e C lampi ng Ele ment…

Fan with Increased Power, incl. Air Filter Box Retrofitting and Maintenance Instructions SIPLACE HS-50

2.4 Retrofitting Procedure Issue 07/01

NOTE:

Note when subsequently inserting the clamping elements:

The points of the "Rapid clamping elements" provide the electrical connection to the machine.

Consequently,they mustbe inserted in sucha way that theirPOINTS are facing towards the metal

plate, as shown in the following figure.

DO NOT position the clamping elementsover the areas with notched recess (= area for engaging

the fan grille, see also Fig. 2.4.1) around the circumference of the circular cut-out.

DO NOT re-use a clamping element after removing it.

In this case always use a new clamping. 2

Fig. 2.4.4 Installation Position of the Clamping Elements

Points

Retrofitting and Maintenance Instructions SIPLACE HS-50 Fan with Increased Power,incl. AirFilter Box

Issue 07/01 2.4 Retrofitting Procedure

Fig. 2.4.5 Position of the Clamping Elements Around the Circular Cut-outs

à Insert 3 clamping elements (Item no. see Sec. 2.2) around each circular cut-out, spaced at an

angle of about 120 degrees in relation to one another (see figure above). Use them to clamp

the tray of the air filter box onto the gantry cover.

à Also perform the steps described above for the gantry cover on the other side.

2.4.4 Replacing the Existing 4 Fans by Fans with Increased Power

Fig. 2.4.6 Removing and Installing four Fans

NOTE:

The assignment of the 2 plugs for each of the fans, i.e. in the gantry area left or right, does not

matter. 2

Tray mounted on

3 brackets

the gantry cover

Electrical connection

Attaching the fan

Fan with Increased Power, incl. Air Filter Box Retrofitting and Maintenance Instructions SIPLACE HS-50

2.4 Retrofitting Procedure Issue 07/01

à Disconnect the plug connections for the 4 fan cables (see figure above).

à Unfasten the 4 fans: Each has4 oval-head screws M4 (driver 2.5 mm). Remove the protective

grilles and the fans.

à Cleantheprotectivegrillewithadampcloth.

à Insert the 4 new fans one after the other (Item no. see Sec. 2.2).

à Replace the previously removed protective grilles on the new fans and attach the fans and

grilles to the machine using the 4 oval-head screws M4 (driver 2.5 mm).

à Connect the plug connections for the 4 new fans. The plugs are keyed.

2.4.5 Fitting the Gantry Cover and Tray onto the Machine

à Place both gantry covers and the tray mounted on each onto the machine and position the

gantry cover so its outside edges are flush.

à Place one CONTACT washer each (Item no. see Sec. 2.2) to the two mounting holes on the

gantry cover which are CLOSTEST to the flat screen (see Fig. 2.4.7 and Fig. 2.1.1).

à Attach the gantry cover with the 4 oval-head screws M4 (driver 2.5 mm) retained from when

the cover was removed.

2.4.6 Inserting the Covers for the Two Air Filter Boxes

Fig. 2.4.7 Clipping the Cover into the Tray of the air Filter Box

à Make certain:

The filter frame with the filter mat is already attached to the Velcro strip of the cover frame.

The uncovered brace of the filter frame is pointing downwards.