TM10-3930-660-20 8-20. FORK AUTOLEVELER CIRCUIT BOARD - TEST/REPLACE (Cont’d) 2. LOOSEN FOUR SCREWS (3) AND SEPARATE COVER (4) FROM BOOM ELECTRICAL BOX (2) TO PROVIDE ACCESS TO AUTOLEVELER CIRCUIT BOARD (l). CAUTION Support cover (4) as required so that weight of cover (4) and circuit board (1) is not supported by electrical leads (5) to board (l). There are two LED indicators on the autoleveler circuit board (l). One is labled “Hi A“ (6) and the other is labeled  “Hi  B“  (7). 3. CHECK FOR PROPER ADJUSTMENT OF AUTOLEVELR  SWITCH. a. b. c. d. Start  engine. Turn off autoleveler control in cab. Place level on forks. Raise forks to approximately a +6 degree inclination and observe “Hi A“ LED indicator (6). The “Hi A“ LED indicator (6) should be illuminated after forks are raised. e. Turn on autoleveler control in cab and observe “Hi A“ LED indicator (6). The “Hi A“ LED indicator (6) should remain illuminated as forks are lowering and go out when forks are level. 8-46