00197551-01_MM_CPP-CP-Twin_Kunde_en - 第70页
Maintenance Tasks for Pressur e Control Valve Performing Maintenance Tasks 6.3.1 Checking /Cleaning the Pressur e Control Valve 70 Maintenance Manual SIPLACE Placement Heads CPP, C&P20, Twin Checking the Pressure Con…
Maintenance Tasks for Pressure Control Valve
6.3.1 Checking/Cleaning the Pressure Control Valve Performing Maintenance Tasks
Maintenance Manual SIPLACE Placement Heads CPP, C&P20, Twin 69
Dismantle the board
► Pull the board (2) off the body of the valve (1).
O-ring
► Remove the O-ring from the hole (2) for the sensor.
Take care: this O-ring could be caught on the sensor
itself (1).
► Clean the hole and the O-ring.
Remove the plunger
► Position a size 8 wrench socket (3) onto the plunger
nut (2).
⇨ The plunger magnets attach the plunger to the Al-
len key.
► Pull the plunger out of the valve housing (1).
Maintenance Tasks for Pressure Control Valve
Performing Maintenance Tasks 6.3.1 Checking/Cleaning the Pressure Control Valve
70 Maintenance Manual SIPLACE Placement Heads CPP, C&P20, Twin
Checking the Pressure Control Valve
Cleaning the Pressure Control Valve
Check the plunger
► Check the plunger for signs of scraping on the front
guideway (1).
► Check the plunger for signs of scraping on the back
guideway (2).
► If there are signs of scraping, you will need to replace
the complete pressure control valve.
In this case, further maintenance tasks do not need to
be performed on the pressure control valve.
Rust on the pressure control valve
► Check the inside of the pressure control valve.
► If the inside of the pressure control valve is damaged,
you will need to replace the complete pressure con-
trol valve.
In this case, further maintenance tasks do not need to
be performed on the pressure control valve.
Clean the basic body of the valve
► Clean the seat of the plunger tip and the Venturi noz-
zle with a cleaning stick dipped in ethanol.
Maintenance Tasks for Pressure Control Valve
6.3.1 Checking/Cleaning the Pressure Control Valve Performing Maintenance Tasks
Maintenance Manual SIPLACE Placement Heads CPP, C&P20, Twin 71
Grease and insert the plunger
Cleaning with compressed air
► Clean all openings in the pressure control valve with
compressed air.
Dirty and clean plungers
Black residues can form on the plungers.
A = dirty plunger
B = Clean plunger
1. Tip
2. Anti-twist lock
► Wet a lint-free cloth with ethanol.
► Clean the plunger with a lint-free cloth, dipped in eth-
anol.
Pay particular attention to the cleanliness of the tip.
Grease the plunger
► Grease the guideways (1) of the plunger slightly with
Isoflex Topas 5051.
► Wipe off any excess grease.