Return Adapter 1 683 356 137 - Bosch 1 687 010 609 Originalbetriebsanleitung

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 1: Return adapter 1 687 016 138
(1) Return adapter 1 687 016 138
(2) O-ring Ø3.5 x 1.25 mm
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2.6.1.1 Return adapter 1 687 016 138 assembly
1. Screw the coupling nipple
with the gasket (A10 x 13.5 mm), and tighten it.
(3)
2. Insert the O-ring into the groove.
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4 5 8 8 0 4-16
 2: Return adapter 1 687 016 138 assembly
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2.6.1.2 Return adapter 1 687 016 138 connection and
removal
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4 5 8 8 0 4-16
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 3: Return adapter 1 687 016 138
(1) Return adapter 1 687 016 138
(2) Test oil return connection
(3) Spring clip
1. Check the O-ring of the return adapter (1). Replace
the O-ring if it is defective or brittle.
Robert Bosch GmbH
(1) (2)
into the adapter
 WARNING – Fragments from the O-ring can remain
in the injector and make their way into the vehicle's
fuel system.
(1)
2. Plug the return adapter
(2)
connection of the Siemens/VDO/Continental pie‐
zo CRI.
3. Use the spring clip (3) to secure the return adapter.
The spring clip is supplied with the Siemens/VDO/
Continental piezo CRI.
4. Connect hose assembly (test oil return)
1 680 712 382 to the return adapter.
5. For removal of the return adapter, perform the con‐
nection steps in reverse order.
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2.6.2

Return adapter 1 683 356 137

The included cover caps can be used to keep the
return adapters dust-free during storage.
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Return adapter for adaptation to the test oil return con‐
nection on Delphi CRIs.
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 4: Return adapter 1 683 356 137
(1) Return adapter 1 683 356 137
(2) O-ring Ø3.5 x 1.25 mm
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2.6.2.1 Return adapter 1 683 356 137 connection and
removal
3
 5: Return adapter 1 683 356 137
(1) Return adapter 1 683 356 137
(2) Test oil return connection
(3) Tab
1. Check the O-ring of the return adapter (1). Replace
the O-ring if it is defective or brittle.
1 687 010 609 | 11 | en
into the test oil return
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1 689 989 474 | 2021-02-18