Exchanging The Wiper Rings; Exchanging The Burst Disk; Exchanging The Cartridge Check Valves; Exchanging The Pressure Gauges - Dräger DOB-HT 200 Instrucciones De Uso

Exchanging the Wiper Rings

NOTICE
There must be no nicks or scratches on the internal
surfaces.
 Remove the four screws (1) from the cover disk us-
ing an socket wrench (3 mm A/F).
 Remove the cover disk (2).
 Remove the wiper ring (4) carefully with a small
screwdriver or similar tool.
 Insert the new wiper ring (4) (part no.: 6530621) with
the lip side to the top.
 Replace the O-ring (3).
 Screw the cover disk (2) on the piston guide.
4
3
2
1
NOTICE
Tighten the screws (1) crosswise with low but sufficient
energy.

Exchanging the Burst Disk

To exchange the burst disk (part no.: T52160) use the
special tool (part no.: 6530986) and a torque wrench
with 3/8" square drive.
 Remove the old burst disk (1).
 Make sure that the internal sealing surface of the
block bore is clean.
 Carefully insert the new burst disk and tighten to
a torque of 20 Nm.

Exchanging the Cartridge Check Valves

 Remove the valve plugs (3) using a socket wrench
 Use the valve extractor (1) (part no.: 6530863) to ex-
 For assembly, lightly lubricate the O-ring (4)
 Assemble the cartridge check valves. On the suction
 Screw in the valve plugs (3).

Exchanging the Pressure Gauges

To change the pressure gauges use an open-end
wrench (14 mm A/F).
If necessary, insert a new copper sealing ring G1/4
(part no.: 6526758).
1
(10 mm A/F).
tract the cartridge check valves (part no.: 6530609).
(part no.: 6530622) with Oxigenoex FF450.
side (connection side, EIN/IN - AUS/OUT) the valves
(2) must be mounted with the valve balls showing to
the outside of the block. On the pressure side (pres-
sure gauge side), the valves (2) must be mounted
with valve balls showing to the inside of the block.
2
3
2
4
2
2 1
3
23