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PROFLOW ATX REPLACEMENT PROCEDURES 12.44 Technical Reference Manual Chapter Issue 6, Jan 16 7. Separate the main body of the transfer head from the top plate and cross- head piston assembly . 8. Remove the pneumatic conn…

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PROFLOW ATX
REPLACEMENT PROCEDURES
Chapter Issue 6, Jan 16 Technical Reference Manual 12.43
Replacing the Crosshead Piston Seal
MANDATORY
TOXIC CHEMICALS MAY BE PRESENT. SAFETY GLOVES MUST BE WORN.
MANDATORY
TOXIC CHEMICALS MAY BE PRESENT. EYE PROTECTION MUST BE WORN.
To replace the crosshead piston seal, carry out the following:
1. Select Open Cover Commands.
2. Select Carriage to Front.
3. Open the machine cover.
4. Remove the print medium cartridge and filler tube assembly.
5. Remove the transfer head from the ProFlow ATx mount.
6. Loosen the four captive top plate securing screws.
Top Plate
Securing Screws
Top Plate
Securing Screws
View on top of the Transfer Head
PROFLOW ATX
REPLACEMENT PROCEDURES
12.44 Technical Reference Manual Chapter Issue 6, Jan 16
7. Separate the main body of the transfer head from the top plate and cross-
head piston assembly.
8. Remove the pneumatic connector from the crosshead piston’s down air feed
pipe; this allows easy movement of the crosshead piston pneumatic sole-
noids.
9. Push the crosshead piston away from the top plate (into its down position),
using the two print medium level indicator pins.
10. Refit the pneumatic connector onto the piston’s down air feed (to prevent
the piston from retracting back towards the top plate).
Transfer Head Main Body
Crosshead
Piston
Crosshead
Piston Seal
Crosshead Piston Shafts
View on Front of Transfer Head
Piston Seal
Retainer
Print Medium Level
Indicator (2 Positions)
Transfer Head
Top Plate
View on Piston Air Feed Pneumatic Connectors
Connector Attached to Pipe
Connector Disconnected from Pipe
Piston Up
Piston Down
View on Front of Transfer Head
PROFLOW ATX
REPLACEMENT PROCEDURES
Chapter Issue 6, Jan 16 Technical Reference Manual 12.45
11. Remove the two print medium level indicator pins from the crosshead piston,
using a 2.5mm Allen key.
12. Slide the crosshead piston off the piston shafts.
13. Remove the piston seal retainer securing screws from the crosshead piston,
using a 2.5mm Allen key.
NOTE
The amount of retaining screws vary with transfer head size.
View on Underside of Transfer Head Top Plate
Piston Shafts
View on Top (400mm Transfer Head Piston Shown)
Retainer Securing Screws
(8 positions)
Crosshead Piston