6. U NCOUPLE T RUCK
6.1 UNCOUPLE TRUCK FROM TRAILER Follow these steps to uncouple your truck from the trailer: 1. Park the trailer on a firm level surface. 2. Set the parking brakes. 3. If trailer is loaded, place blocks or pads under landing gear legs to prevent settling.
4. MAC Trailer uses a two speed landing gear from several different manufacturers. High speed may be in on some models and out on others. High speed is used only when landing gear is off the ground. Engage the crank handle (A) and lower the landing gear until it makes firm contact with the ground, blocks or pads. Switch to low gear and crank an additional 4-8 turns. See Figure 6-1.
Figure 6-1 – Two Speed Landing Gear 5. Disconnect the supply hose from glad hand (B), service hose from glad hand (C) and electrical connector. See Figure 6-2.
Figure 6-2 – Disconnect Hoses and Electrical Connector
6. Pull the fifth wheel release lever. 7. Release air in truck suspension (if equipped) and pull truck forward until fifth wheel comes out from under the trailer.
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