Which reverser handle position locks the operator's control?

Which reverser handle position locks the operator's control?

• A. Centered and Removed
• B. Forward
• C. Neutral
• D. Reverse

Answer: (A)

The risk-reduction mechanism here is a safety interlock tied to the reverser handle. When the reverser is centered and removed from its position, the control linkage is effectively disabled, locking the operator’s control so no power or movement can be applied. This setup prevents accidental operation during checks, maintenance, or when the cab is unoccupied. The other positions—forward, neutral, or reverse with the handle in place—do not provide this lockout, because they are part of normal control operation. Centered and removed is the deliberate condition that ensures the system cannot be driven until the reverser is reinserted and reset, prioritizing safety.

The risk-reduction mechanism here is a safety interlock tied to the reverser handle. When the reverser is centered and removed from its position, the control linkage is effectively disabled, locking the operator’s control so no power or movement can be applied. This setup prevents accidental operation during checks, maintenance, or when the cab is unoccupied. The other positions—forward, neutral, or reverse with the handle in place—do not provide this lockout, because they are part of normal control operation. Centered and removed is the deliberate condition that ensures the system cannot be driven until the reverser is reinserted and reset, prioritizing safety.