Testing engine overload protection (not for engines with P2 control) - ra09006025921x(5921)
Engines 602.96, 603.96/97 TURBO (Model 463.3: for deviations see introductory notes)
Operation no. of operation texts and work units or standard texts and flat rates: 09-5921
| 2-pin connector on switchover valve (Y30) | detach and briefly energize with voltage. The switchover valve must be heard to click; renew if necessary. |
| 1-pin connector on pressure switch (S66) | detach and test for continuity with ohmmeter. The pressure switch (S66) is open in the off state. |
| Engine overload protection switch (S66) | remove. Connect pressure switch to cable of nozzle tester KDJE-P 400. Connect ohmmeter to pin of pressure switch and to housing. Build up pressure of 1.1 ± 0.15 bar at nozzle tester; the pressure switch must not have any continuity. Replace pressure switch if necessary. |
Special tools
COMMERCIALLY AVAILABLE TOOLS AND TESTERS
| Designation | e. g. make, order no. |
|---|---|
| Digital multimeter | Sun, DMM 5 |
| Valve tester | Bosch, KDJE-P 400 (Bosch Order Designation) |
| Optionally 0-6 bar pressure gauge | Bosch No. 1687 231 000 |
| Optionally nozzle tester EFEP 60H | Bosch No. 0684 200 700 |