Exchanging The Battery For Hand Pump 1 687 222; Sealing Device 0 986 610 - Bosch Denoxtronic 2.1 Product Description

en 30 | Denoxtronic 2.1 | Maintenance
6.5 Exchanging the battery for hand
pump 1 687 222 191
!
Do not exchange the battery while the hand pump
is under pressure i.e., when the plunger (item 2 in
fig. 17) is pulled out.
Procedure:
1. Actuate the valve (fig. 17, Pos. 1) and hold.
2. Insert the piston rod (fig. 17, item 2) all the way and
wait until the display goes dark.
3. Open the battery compartment (fig. 17, item 3).
4. Remove the dead battery and replace it with a new
one (type CR 2430, 3 V). Make sure that the positive
battery terminal is at the top.
5. Close the battery compartment.
"
The hand pump can now be used.
Fig. 17: Hand pump 1 687 222 191
1 Valve
2 Plunger
3 Battery compartment for a lithium battery, type CR 2430, 3 V
6.6 Sealing device 0 986 610 905
Bump stop visual inspection
1. Check the bump stop (fig. 18, item 3) for porous
spots, cracks and other damage.
2. A damaged bump stop must be replaced.
3. Use the new banjo screw provided for attachment.
!
Do not use a regular screw for securing the bump
stop. It would not provide the safety function of the
sealing device.
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1 689 989 404 2019-03-01
Safety valve function test:
i
Function tests of the safety valves on the sealing
device must be performed annually.
i
Use only cleaned and filtered compressed air (filter
< 25 µm) and a maximum test pressure of 3 bar for
the function test.
Fig. 18: Sealing device 0 986 610 905
1 Safety valve, fixed
2 Safety module, separable
3 Bump stop
Procedure:
1. Before the test, make sure the knurled nuts of the
safety valves are tightened.
2. Position the compressed-air gun on the banjo screw
on the bump stop (fig. 18, item 3).
3. Activate compressed-air gun briefly. Use the
procedure repeatedly if necessary. The safety valves
of the sealing device must open. The function is
indicated by the sound of compressed air escaping.
"
The function test will be complete, and the sealing
device will be ready for operation again.
!
Stop using the sealing device if a safety valve is
defective.
!
The separable safety module can be replaced
separately. If the fixed safety valve is defective, the
sealing device must be replaced.
Robert Bosch GmbH