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Generac — Lowering the Mast

Operation · Mast, winches and lock bar

From a Generac owner's manual covering: MLT5150, MLT5200, MLT5200ICAN. Check it applies to your exact model before use.

Applies to: Generac MLT, Mitsubishi S4L2-W461ML engine, Isuzu 4LE1NYGV-03 / 4LE1NYGV-03E engine, Isuzu D1105-E3BG engine

Before you start

  • Burn hazard. Lamps become extremely hot while in use. Allow 10-15 minutes for cooling before handling or lowering mast. Touching a hot lens or fixture can cause severe burns.
  • Personal Injury. Stop immediately if the mast hangs up or the winch cable develops slack. Excess slack could cause the mast to collapse, resulting in personal injury or equipment damage.

Procedure

  1. Shut down the lights and engine.
  2. To rotate the mast, loosen the mast rotation knob, rotate until the white arrows are aligned and metal stop tabs are touching, then tighten the knob.
  3. Turn the upper mast winch handle counterclockwise to collapse the mast to its lowest position; verify the coiled electrical cord does not get caught or pinched.
  4. Pull the safety pin on the mast lock and pull the lock bar free; turn the lower mast winch handle counterclockwise until the mast rests in the transport cradle.
  5. Insert the mast cradle locking pin and secure it with the safety pin.

Specs & values

  • If the mast lock bar does not pull free, activate the lower winch slightly to relieve pressure on the mast bar

Full service-parts list: Generac MLT →, Mitsubishi S4L2-W461ML engine →, Isuzu 4LE1NYGV-03 / 4LE1NYGV-03E engine →

Source: Generac owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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