Danfoss APP 21-43 Anweisungen für die Demontage und den Zusammenbau - Seite 11
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Instruction
6. Disassembling and
assembling of cylinder
barrel-/ valve plate
7. Disassembling and
assembling of the
flush valve
Disassembling and assembling APP 21-43
1. Push a screwdriwer into the hole between
cylinder barrel and valve plate. Gently push
downward the screwdriver so that it makes a
gap between cylinder barrel and valve plate.
Use this gap to put in another screwdriver and
loosen the valve plate from the cylinder barrel.
3. Lubricate the new O-rings/back-up rings and
the liners in the cylinder barrel with clean
filtered water. Lower the valve plate upside
down on the cylinder barrel. Place the press
bush for valve plate (provided in tool set)
like on the picture. Screw the bolt into the
cylinder barrel.
1. Unscrew the flush valve counter-clockwise by
using a pin wrench.
3. Put a little amount of grease on the thread on
the plug. Screw it into the port flange. Tighten
with a torque of 30 Nm +/- 3 Nm.
180R9121 / 521B1018 / DKCFN.PI.013.A4.02 / 10.2013
2. Remove the O-rings and backup rings. If they
have been removed they can not be reused.
Mount the new back-up rings on the valve
plate first and then mount the O-rings.
Mount
back-up rings
first
4. Remove the press bush again by screwing the
nut counter-clockwise.
Mount the cylinder barrel into the pump.
Turn the nut slowly clockwise. The valve plate
must slide gently into the cylinder barrel.
Stop when the gap between cylinder barrel
and valve plate is 1-2 mm.
2. Remove the O-rings (green and black). If
necessary, change the valve cone, spring and
plug. If the spring is changed it is important
that it is located like on the picture. The end
of the spring must be against the shoulder of
the valve cone.
Mount then
O-rings
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