PR750H
MECHANICAL MAINTENANCE
25.
Procedure for changing Danfoss EV3 and solenoids on PR750H and PR350H
This section will describe how to changing Danfoss EV3 and solenoids on PR750H and PR350H.
During this operation
it’s important to activate the emergency stop button.
Disassembling and replace a Danfoss EV3 valve and solenoid
26.
Remove the pipe by loosening the 2 flare nuts
[1]
dismount the plug on the solenoid and pull of the
the flare nut on this pipe
[
3
]
, remove the EV15 valve
[4]
. Replace the EV15 valve and solenoid if
[
1, 3
]
are to be tightened see Procedure for changing the extruder piston on PR750H and PR350H
This section will describe changing the extruder piston on PR750H and PR350H.
During this operation it’s important
to activate the emergency stop button.
Disassembling the extruder plate changer
Remove one of the extruder plates
[
3
]
by loosening the 2 screws
[
4
]
and push out the extruder plate in the opposite
direction. Do also remove the outlet sprout
[
2
]
. Move the extruder plate changer so this empty slot is in front of the barrel
see instructions regarding operation in single mode below. The extruder plate changer
[
1
]
will be loosened during this
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