AIR PRESSURE SENDING UNITS (PRIMARY/SECONDARY) REPLACEMENT - CONTINUED
REMOVAL - CONTINUED
Perform steps 3 through 5 to remove primary air pressure sending units.
Remove two air lines (6) and fittings (7) from cab air junction block (8).
Disconnect two electrical connectors (9 and 10) from primary air pressure sending unit (11).
Remove primary air pressure sending unit (11) from air junction block (8).
Perform steps 6 and 7 to remove secondary air pressure sending unit.
Disconnect two electrical connectors (12 and 13) from secondary air pressure sending unit (14).
Remove secondary air pressure sending unit (14) from cab air junction block (8).
Adhesives and sealing compounds can burn easily, can give off harmful vapors, and are harmful to skin
and clothing. To avoid injury or death, keep away from open fire and use in a well-ventilated area. If
adhesives or sealing compound gets on skin or clothing, wash immediately with soap and water.
Ensure that all air lines and fittings are clear of debris and excess pipe sealing compound does not enter
air lines or fittings. Failure to follow this warning could result in injury to personnel or damage to equip-