PS-28 Cruiser
PS-28N Cruiser
CR-MM-1-0-00
CHAPTER 12 – INSTRUMENTS AND AVIONICS
Revision No.: 23
Date of issue: 2020-01-15
12 - 72
12.4.11.2 Cleaning
Clean the contacts on the terminal board and on the three triangular cups with alcohol.
12.4.11.3 Inspection
Inspect the contacts on the terminal board and on the three triangular cups for excessive wear or
corrosion.
If the silver plating on the terminal board or triangular cups is worn through to the brass or if they are
burned or pitted from arcing or are corroded, they should be replaced.
12.4.11.4 Lubrication
Apply a THIN coating of Mobile Grease 33 lubricant to the contacts on the terminal board and the three
triangular cups. Be sure that all contacts are coated but avoid heavy lubricant buildups.
12.4.11.5 Reassembly
1. Reassemble the switch, using new parts if required. Position the springs and triangular
cups so that there is no binding between the cups and the triangular cavities in the switch
body. Secure the terminal board assembly to the switch body with two screws and retaining
washers.
2. Fill the heads of the two screws on the terminal board assembly with red colour.
3. Connect the labelled wires to the proper terminals on the terminal board assembly.
4. Reinstall the ignition switch in the panel.
NOTE:
The locations of the “S” and “BAT” terminals on the new green terminal board
assembly are reversed from their positions on the old white terminal board
assembly (see Figure 12-48).
Fig. 12-48.
Wiring connections for ACS A-510-2 ignition switch
Содержание CRUISER AIRCRAFT PS-28 Cruiser 2021
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