Danfoss PAHT G Series Instruction - Page 11
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Also for Danfoss PAHT G Series: Service Manual (20 pages), Disassembling And Assembling Instructions (20 pages)
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Instruction
5.
Disassembling and
assembling of cylinder
barrel and valve plate
Disassembling and assembling PAHT and PAHT G 256-308
1. Push a screwdriver into the hole between
cylinder barrel and valve plate. Carefully
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 shaft of the cylinder barrel. Turn
the nut slowly clockwise. The valve plate
must slide carefully into the cylinder
barrel. Stop when the gap between
cylinder barrel and valve plate is 1-2 mm.
180R9268 / 521B1236 / DKCFN.PI.011.B3.02 / 01.2015
Mount
backup
rings first
Mount then
O-rings
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.
4. Remove the press bush again by screwing
the nut counter-clockwise.
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.
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