TM 5-5420-203-14
CHAPTER 2
OPERATING INSTRUCTIONS
Section I. DESCRIPTION AND USE OF OPERATOR'S CONTROLS AND INDICATORS
2-1. CONTROLS AND INDICATORS.
Table 2-1. Use of Controls and Indicators
CONTROL or
KEY
FUNCTION
INDICATOR
OVERHEAD CYLINDER
LIFTING UP ON THIS LEVER RETRACTS PIN OF HOLDDOWN CYLINDER
1
AND RAISES BRIDGE FROM BRIDGE SEAT. HOLDING DOWN ON THIS
LEVER
LEVER LOWERS BRIDGE TO BRIDGE SEAT AND EXTENDS HOLDDOWN
CYLINDER PIN LOCKING TIEDOWN CHAINS.
TONGUE CYLINDER
2
LIFTING UP ON THIS LEVER LOWERS BRIDGE TO THE GROUND FROM
LEVER
VERTICAL POSITION. HOLDING DOWN ON THIS LEVER RAISES BRIDGE
BACK TO VERTICAL POSITION. USED WITH SCISSOR BRIDGE CYLINDER.
3
SCISSOR CYLINDER
LIFTING UP ON THIS LEVER EXTENDS (UNFOLDS) BRIDGE DURING
LEVER
LAUNCH. HOLDING DOWN ON THIS LEVER RETRACTS (FOLDS) BRIDGE.
USED WITH TONGUE CYLINDER.
LOCKING CYLINDER
4
LIFTING UP ON THIS LEVER RETRACTS LOCKING PLUGS. HOLDING
LEVER
DOWN EXTENDS LOCKING PLUGS.
5
EJECTION CYLINDER
LIFTING UP ON THIS LEVER WHILE LIFTING UP ON LEVER (KEY 4)
LEVER
PUSHES BRIDGE AWAY FROM TONGUE. HOLDING DOWN RETRACTS
EXTENDED CYLINDER PINS.
Change 2 2-1
