ACS 653, ACS 663 Service Manual
SP00D00624 2021-04-08 Robert Bosch GmbH
10
Introduction
These units are designed to be compatible with existing service equipment and standard service
procedures. These machines utilize a single-pass system that meets specications for recycled
refrigerant. Follow recommended service procedures for the containment of refrigerant.
Each unit includes a high-vacuum pump for fast, thorough evacuation. The compressor rst pulls
the A/C system to -0.4 bar; the compressor then works with the vacuum pump to pull a vacuum
to an absolute pressure of less than 1.0 bar.
Refrigerant systems require special oils. Refer to the A/C system manufacturer’s service
manual for oil specications.
1 2
5
6
4
3
7
12
11
10
8
9
15
16
17
19
20
18
14
13
21
1. Gauge low pressure (LP)
2. Printer (optional, standard on P variants)
3. Gauge high pressure (HP)
4. Identier Filter (for ACS 663-RI only)
5. Master switch
6. Power supply socket
7. Circuit breaker
8. UV dye bottle
9. Fresh oil bottle 2 (POE)
10. Fresh oil bottle 1 (PAG)
11. Oil drain bottle
12. Display and control panel
13. Flush port (high pressure*)
14. Flush port (low pressure*)
15. Service hose port (high pressure*)
16. Service hose port (low pressure*)
17. Contaminant recovery outlet port
(for ACS 663-RI only)
18. Front wheels with locking brake
19. Rear wheels
20. Hoses wraping support
21. 2 x USB 2.0 slot
(*) max 25 bar (2.5 MPa)
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