Operating instructions

Operating Instructions Chapter 9

C4000 Standard/Advanced

Subject to change without notice

Care and maintenance

9 Care and maintenance

The safety light curtain C4000 is maintenance-free. The front screen of the safety light

curtain C4000 and any additional front screen(s) (see “Additional front screen (weld spark

guard)” on page 110) should be cleaned at regular intervals and when dirty.

 Do not use aggressive cleaning agents.

 Do not use abrasive cleaning agents.

Static charges cause dust particles to be attracted to the front screen. You can prevent

this effect by using the antistatic plastic cleaner (SICK part number 5600006) and the

SICK lens cloth (part number 4003353).

How to clean the front screen and/or the additional front screen (optional extra):

 Use a clean and soft brush to remove dust from the front screen.

 Then wipe the front screen with a clean and damp cloth.

 After cleaning, check the position of sender and receiver to make sure that the

protective device cannot be bypassed (reaching above, below or behind).

 Verify the effectiveness of the protective device as described in chapter 7.3 “Test

notes” on page 64.

Note