WIRE A. 0530009 - Caterpillar

Illustration 1 g03368733
Location for the Solenoid Valves on the Main Control Valve (1) Solenoid valve (tilt back) (2) Solenoid valve (lower) (3) Solenoid valve (dump) (4) Solenoid valve (raise)
Illustration 2 g03368768
Location for the Solenoid Valves on the Main Control Valve (5) Solenoid valve (auxiliary) (6) Solenoid valve (auxiliary)The following valves are solenoid valves (pilot proportioning).
Solenoid Valve (Raise)
Solenoid Valve (Lower)
Solenoid Valve (Dump)
Solenoid Valve (Tilt Back)
Solenoid Valve (Auxiliary or Third Function)
Solenoid Valve (Auxiliary or Third Function)
Solenoid coils will be damaged. Do NOT activate the solenoids with a voltage or signal that does not originate from the ECM.
Solenoid Valve (Pilot Proportioning)
Illustration 3 g01192353
The solenoid valves (pilot proportioning) are outputs of the implement electronic control module (ECM). The purpose of the solenoid valve is directing a proportional amount of pilot oil to the main control valve. The stems in the main control valve will shift in order to allow pump supply oil to the corresponding cylinder. When the operator moves a control lever or the joystick control the implement ECM activates the appropriate solenoid valve. The solenoid valves are energized with a PWM signal that is sent by the implement ECM. The PWM signal acts as a source of variable current to activate the solenoid. The solenoid valves have a connector with two contacts. One of the contacts will receive the input from the corresponding contact of the implement ECM (J1-48, J1-49, J1-51, J1-52, J1-58, J1-59). The output returns for the solenoid valves are the contact J1-50 and the contact J1-60 of the implement ECM. See the table below.
Table 1
ECM Pin Terminal and Corresponding Description for the Main Control Valve Solenoids (Pilot Proportioning)    
Pin     Description    
J1-48     Raise Solenoid    
J1-49     Lower Solenoid    
J1-50     Return for the Lift and Tilt Solenoids    
J1-51     Rack back Solenoid    
J1-52     Dump Solenoid    
J1-58     Auxiliary "HE" Solenoid    
J1-59     Auxiliary "RE" Solenoid    
J1-60     Return for the Auxiliary Solenoid    
Table 2
OUTPUT ENVELOPE    
Current (Amp)     Lower (kPa-Psi)     Mean (kPa-Psi)     Upper (kPa-Psi)    
0     0     0    
25 kPa (3.5 psi)    
0.2     0     0    
25 kPa (3.5 psi)    
0.3     0     0    
170 kPa (25 psi)    
0.4     0    
100 kPa (15 psi)    
325 kPa (47 psi)    
0.5     0    
325 kPa (47 psi)    
550 kPa (80 psi)    
0.6    
325 kPa (47 psi)    
550 kPa (80 psi)    
775 kPa (110 psi)    
0.7    
550 kPa (80 psi)    
775 kPa (110 psi)    
1000 kPa (145 psi)    
1    
1225 kPa (180 psi)    
1450 kPa (210 psi)    
1675 kPa (245 psi)    
1.3    
1900 kPa (275 psi)    
2125 kPa (310 psi)    
2350 kPa (340 psi)    
1.6    
2575 kPa (375 psi)    
2800 kPa (405 psi)    
3025 kPa (440 psi)    
1.9    
3250 kPa (470 psi)    
3475 kPa (505 psi)