Seca 285 - Replacing the Key Unit; Slider

Replacement instructions
seca 284/ 285
13.09.2010 /KSP 5 30-34-00-811
• Between the rubber buffers (R) and the load cells (H) in the frame there are shim rings
which allow the glass plate (G) to be fitted free of tension.
When refitting the glass plate (G) make sure it is free from tension.
• To replace the load cell (H), release the four screws (J) and unsolder the NEC2 weight
module (K).
• When fitting the load cells (H), tighten the four screws (J) to Mt = 12.5 Nm!
Figure 3: Replacing the glass plate, load cells and weight module
2 Slider
Please be sure to observe the sequence listed below when removing/fitting the parts!
2.1 Replacing the key unit
• Take hold of the slider (A) and carefully press out the complete key unit (B) from the
lower detent recess.
CAUTION: Secure the complete key unit (B) with your other hand so that the 10-
pole FFC cable (C) is not torn off!
Figure 4: Replacing the key unit
K
G
H
J
R
Detent
A
C
B