903D SYSTEMS, INC.
Silicon wiper replacement
The two silicon wipers must be replaced every 6 months. They are located at the left and right corners of the manufacturing
chamber.
Part Number:
• Silicon wiper : 5005646S00 (quantity needed: 2)
Caution : Personal Protective Equipment (PPE) must be used to protect the user against health or
safety risks during working tasks. Wear disposable rubber gloves, anti-static coverall, anti-static safety
shoes and safety glass. Wear disposable dust mask rated FFP3 or N99 level protection at minimum ; we
recommand the use of powered air purifying respirator.
Caution : perform only tasks you are authorized and certied to complete. This maintenance procedure
requires the operator to be trained on the use of the printer through the Adjuster level ("User level
selection" on page 47).
Caution: this maintenance will require to move the feeding piston. Make sure not to perform the
maintenance that might result in powder overow inside the manufacturing chamber.
Procedure:
1. Clean the manufacturing chamber as explained on the section "Manufacturing chamber cleaning" on page 67. This
step must be performed carrefully as the maintenance will require to access the manufacturing chamber.
2. Move the carriage to position 150mm.
3. Open the front doors (1).
4. Switch off the printer (see section "Shutting printer down" on page
69).
5. Switch the locking key to position ”O”, remove the key and keep it with you. This will prevent any power up of the
printer during the maintenance.
6. Lift the top skin up (2).
7. Remove the chamber door captive screws as indicated on the adjacent
gure. Make sure to remove the 2 screws hidden behind the airlock
door.
Left silicon wiper
Right silicon wiper
1
2
Captive screws
Hidden captive screws
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