valutazioni - 4, GPA: 4.5
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See Figure 7-6a,b. 9. If the trailing arm is not properly engaged in cam follower bracket assembly or if it is hitting the assembly loosen the two 3/8” nuts securing the cam follower assembly. 10. Cam follower bracket assembly has clearance at the bottom to move. Pick up on trailing arm to engage it in trailing arm guide blocks and move cam follower bracket assembly up into notch on trailing arm. See Figure 7-4. Tighten the two 3/8” nuts when adjustment is correct. 11. When properly aligned, the door should have no play when pushed in the closed position and when opened the first movement of the trailing arm should be up and over the cam follower bracket assembly (both sides of the oven) – See Fig.7-4. Additionally, when the door is closed, the trailing arms should “snap” down into position. To test this, gentle pick up one of the trailing arms approximately . inch and release it. The trailing arm should “snap” back down in to the same position each time. If it hangs or does not return to the exact position each time readjust the cam roller assembly. 12. If it is determine that a proper adjustment can not be made, it may be necessary to reposition the bottom hinge on the door. To do this, loosen item 11 (see Figure 7-6) on both sides of the oven. With all screws loose, close the door and push in and down on the door. While doing so, tighten all screws on the hinge. Now repeat steps 710. LIMIT SWITCH ADJUSTMENT: PRIMARY AND MONITOR 7-4 Cook Door 13. Actuator tab should be positioned as shown in Figure 7-5. It should be parallel to the primary switch lever. Adjust and bend (needle nose pliers) actuator tab as necessary. 14. When the door is closed and the actuator tab is in contact with the primary and monitor switches the switches should both be closed. The actuator tab should be in contact with the switch paddles such that when the switches are closed there is about 0.020” of clearance between the switch paddles and the switch bodies. Also, the actuator tab should be at or close to horizontal and be positioned approximately 1/4” from the end of the monitor switch actuator tab. Adjust the interlock switch brackets by loosening the screws as necessary. See Figure 7-5. 15. Once the switches and actuator are properly adjusted, as the door is opened the primary switch should disengage before the monitor switch. LIMIT SWITCH ADJUSTMENT: SECONDARY 16. Refer to steps 8, 9, 10, and 11 this page. The trailing arm must be properly engaged in the cam follower bracket assembly and the trailing arm guide blocks. 17. Again, the actuator tab should be positioned as shown in detail of Figure 7-5. Adjust and bend (needle nose pliers) actuator tab as necessary. 18. When the door is closed, the actuator tab is in contact with the secondary switch paddle and the switch should be closed. There should be approximately 0.020” of clearance between the switch paddle and the switch body. Adjust the limit switch bracket by loosening the screws as necessary. FINAL TESTING OF DOOR SWITCH ADJUSTMENT: 19. After the door switch assemblies have been properly aligned and adjusted on both sides, confirm that with the door closed that all three switches contacts are closed. 20. As the door is opened slowly confirm that all three switches operate in the correct sequence, i.e. as the door is opened the switches open in the order of primary, secondary, and then monitor . 21. As the door is slowly closed confirm the switches close in the opposite order from above. 22. If the sequencing is not correct, readjust switch brackets and or associated hardware until all criteria are met. SWITCH TEST AT TEMPERATURE: 23. Reinstall main circuit breaker on din rail and reattach wiring to bottom of circuit breaker. 24. Reattach left side trim piece and magnetron plenum assembly. 25. Refit top cover and left and right side covers. 26. Plug the oven in and set the temperature to 525 F and allow the oven to come up to temperature and remain at temperature for 15 minutes. 27. Refer to Chapter 5, and put the oven into test mode. At the bottom left of the screen are the letters P, S, and M. As the oven door is slowly opened, the background of the letters will light up indicating that the switches have opened. 28. Slowly open and close the door to confirm the proper sequence of the switches, P, S, M and M, S, P respectively. 29. If the sequencing is not correct, remove the left and right side covers and adjust the switch brackets as necessary and retest the oven. 30. If the sequencing is correct, while in the test mode refer to section 9-2 and perform the microwave radiation leakage tests. 7-5 TurboChef Technologies, Inc. C Series 7-8 Figure 7-3 Interlock Placement Differences C3/AB vs. C3/C Cook Door TRAILINGARMANDCAMMOTION1.CAMFOLLOWERROLLER2.TRAILINGARMNOTES: 3.INDOORCLOSEDPOSITION,THETRAILINGARMSHOULDSEATASSHOWNONTHECAM.NOTE:BOTHTHELEFTANDRIGHTSIDESSHOULDBEADJUSTEDSUCHEACHSIDESEATSASSHOWN. 4.ASTHEDOOROPENS,THETRAILINGARMMUSTCONTACTCAMDURINGFULLMOTIONOFTHEDOOR. 24...
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