TM 5-3805-291-23-1
THEORY OF OPERATION - CONTINUED
0003 00
ELECTRO-HYDRAULIC SYSTEM - CONTINUED
(a)
Hydraulic lockout switch is an implement ECM input. Switch sends a signal to ECM to disable hydrau-
lic system. ECM disables pilot hydraulics by deactivating hydraulic lockout solenoid valve and all other
proportional solenoids for implements.
(b)
Hydraulic lockout switch is a two-position rocker switch located on right hydraulic electronic control.
Switch has two input connections to ECM. Switch terminal 1 connects to J1-34. This is NC input con-
nection for hydraulic lockout. Switch terminal 3 connects to J1-33. This is NO input connection for
hydraulic lockout. When switch is in LOCK position, NC circuit is open or floating. NO is closed to
ground. When switch is in UNLOCKED position, NC circuit is closed to ground and NO circuit is open
or floating.
(2)
Kickout Set Switch.
427-C1816
(a) Kickout set switch is a momentary rocker switch located in operator compartment (TM 5-3805-291-
10). Kickout set switch is used by an operator to set kickout positions for lift lower, lift raise, and
bucket tilt. When switch is pushed, ECM records current lift arm position, then uses recorded position
for lift kickout position or lower kickout position. If upper position of kickout set switch is depressed
and lift arm is above midway, kickout will be set for raising lift arm. If upper position of kickout set
switch is depressed and lift arm is midway below halfway, lower kickout will be set. If lower position
of kickout set switch is depressed, tiltback rotation will be set.
(b) Switch has two input connections to implement ECM. Switch terminal 1 connects to J1-40. Switch
terminal 3 connects to J1-35. Both of these connections are NO. When switch is in LIFT position,
switch terminal 3 is closed to ground and switch terminal 1 is open or floating. When switch is in
TILT position, switch terminal 1 is closed to ground and switch terminal 3 is open or floating.
0003 00-148
