TM10-3930-660-20 8-21. FORK AUTOLEVER SWITCH - REPLACE/ADJUST (Cont’d) b. Raise forks approximately 24” above  ground. c. Place level on forks and note level reading. Level reading should be within ±2 degrees of zero if switch (1) is properly adjusted. If necessary, refer to step 4 of this section to adjust switch (l). 4. ADJUST AUTOLEVELER SWITCH (l). a. b. c. Turn three adjustment nuts (23) on switch (1), as required, until 0 degree reading is obtained on level. Turn off fork autoleveler control in cab and manually tilt carriage assembly up or down. Turn on fork autoleveler control in cab and note level reading after forks  have  leveled. Reading will be within ±2 degrees of zero if switch is properly adjusted- 5. 6. d. If necessary, repeat steps a through c of step 4, as required until switch (1) is properly adjusted. STOP  ENGINE. INSTALL SWITCH COVER TO CARRIAGE ASSEMBLY AS DESCRIBED IN “INSTALLATION” SECTION OF THIS PARAGRAPH  . 8-55