325, 325L and 325N 325LN HYDRAULIC AND ELECTRONIC EXCAVATORS

Number of medio-SENR5406- Publication date - Update date -

01 01/12/1993 26/06/2007

SENR54060001

Electronic testing and adjustment system of

Calibration of automatic governor actuator (G/A)

NOTICE
The hydraulic oil temperature must be at normal temperature
of operation before performing this calibration procedure.

Note: This procedure must be carried out at any time the actuator governor.
The driver has been replaced or reinstalled.
Note: The activation of this mode replaces the function of the AEC system and maintains the
constant power change pressure in the vacuum pressure level. The dial of
the motor speed can be placed in any position as it cannot be activated
until the governor actuator calibration has been completed. The switch of
The governor's backup must be in AUT position (not copy of
security).
See image
Electronic Monitor Panel (automatic calibration governor actuator)
(4) character screen. (26) High speed travel indicator (rabbit). (28) control switch
speed travel. (31) AEC switch. (34) switch. (36) alarm cancellation switch.
1.Start "Calibration mode". Refer to the section "Calibration mode".
march
2. Press the travel speed control switch (28) until the high indicator lights up.
(rabbit) travel speed (26) ON.
3. Press and hold the AEC switch (31) then press and hold the
switch (34). Character display (4) shows [AC] in a flashing mode.
4. AEC switch still depressing (31) and the washer switch (34), press the
alarm canceling switch (36) until the character display (4) stops
blink and change to [ACP]. The automatic calibration mode now starts and the
the governor actuator motor has moved to the high idle stop position
initial. The governor actuator is already calibrated to the factory engine rpm
designated establishment for the position "10" dial of the motor speed.
5.once the character appears (4) [Law], the procedure can be completed
calibration.
6. Press (31) and the washing machine switch (34) in sequence until Show character
screens (4) [AC1]. The calibration procedure for the rpm now begins.
factory motor adjustment designated to mark '1' to '10' of the motor speed
position switch. The calibration procedure for this point takes
approximately two minutes. Character display (4) will change as follows:
Note: After completing the initial setup, ensure that the governor lever
is correctly positioned (in contact with the high idle stop) by turning the pulley
with the hand.
 [AC1]
[AC2]
[AC3]
[AC4]

[AC6]
[AC7]
[AC8]
[AC9]
[AC0]
When [AC0] appears on the character screen (4), the calibration procedure
it is complete.

Note: If the data is not correct or within specified limits, character (4) will
it will indicate an error code as shown in the following table:
Note: If character appears (4) [AC2] and [-*] (*: error code is displayed in the
next table) alternatively during the automatic calibration procedure of
G/A is an indication of the following possible problems. It has been done the
necessary repairs. If character shows (4) screens [AC0] after taking the
corrective action, indicates that the calibration of the automatic governor actuator has been
completed successfully.
See image

Note: If the error code [- 1], [- 2], [- 3], [-15], or -[16] is indicated on the screen
character (4), readjust the accelerator/decelerator cables. Please refer to the 'Adjustment' section
after replacement of important components.
Note: If error code [- 4] to -[12] or -[14] is indicated on the character screen.
(4), check the corresponding procedure verification in the section
Control procedures (Electronic Control System)
Note: To the character Show screens (4)-[13], resume all controls of the position
NEUTRAL. If the problem code persists, check the pressure switches and
the circuits.
7th stop 'Calibration mode' (unless another function selection is desired).
Refer to the section "Stop Calibration Procedure Mode".
Calibration of proportional reducing valve
Note: This calibration procedure must be carried out when the valve of
proportional reduction or the controller has been replaced. This procedure is
Perform at two points of pressure with a power change of 5 kgf/cm2490 kPa (72 psi)
25 kgf/cm22450 kPa (355 psi).
View image

Main pump compartment

feed pressure switch key.
1. Stop the engine and install a pressure gauge kPa (700 psi) from 4900 to the faucet.
energy change pressure (40).
2. Make sure that the safety switch for the pump control is in the position
AUT
3. Start the 'calibration mode'. Refer to the 'Calibration mode' section.
march
Note: The engine must be current and a hydraulic oil temperature of
approximately 50° C (122° F) to carry out this calibration procedure.
4. Run the engine with the motor speed selector switch in the
position '10'.
Note: Activating this calibration mode replaces the function of the AEC. If the
The motor speed dial switch is not in the '10' position character (4) will show
an 'E' in the first column. The motor speed must be corrected within the
specifications to follow the calibration procedure.
See image
Electronic Monitor Panel (proportional reduction valve calibration)
(4) character screen. (27) Low speed indicator (turtle) for trips. (28) control switch of
velocidad viajes
5. Press the travel speed control switch (28) until the indicator of
travel speed (27) decreases ON.
6.character visualization (4) will appear [1 0]. The '1' indicates that the first point of
calibration has been visited and the '0' indicates the median step of the 19 steps of
individual calibration has been visited. Each step changes the pressure of the change of
energy of approximately 50 kPa (7.5 psi).
to change the energy change pressure:
To increase the energy change pressure, press the switch once.
AEC (31). This is going to change (4) the character display [1 2]. Every time it is
pressed the AEC switch (31), character Show increases (4) by one until
what character screen (4) screens [1 9]. Also, the pressure to the pressure of change
can increase strikes (40) by approximately 50 kPa (7.5 psi) for each
increment. The following is an example of screen reading (4) character in order
growing
[1-9]
[1-8]
[1-7]
[1-6]
[1-5]
[1-4]
[1-3]
[1 - 2]
[1-1]
half step
 [1 1]
[1 2]
[1 3]
[1 4]
[5 1]
[1 6]
[1 7]
[1 8]
[1 9]
To reduce the pressure of the feeding change, press the switch (34) once.
to lower the value displayed on screen characters (4). Each time switch (34) is
pressed, character show decreases (4) by one in descending order until
screen character screens (4) [1-9]. Also, the pressure to the pressure change of
Tap power (40) decreases by 50 kPa (7 psi) for each decrease. The following is a
example of screen reading (4) character in decreasing order:
[1 9]
[1 8]
[1 7]
[1 6]
[5 1]
[1 4]
[1 3]
[1 2]
[1 1]
half step
[1-1]
[1 - 2]
[1-3]
[1-4]
[1-5]
[1-6]
[1-7]
[1-8]
1-9
8. To define 'Calibration point no. 1', follow these steps:
a.Pulse Switch (34) until the pressure at the tap (40) is less than 490 kPa
(72 psi).
b. Press AEC switch (31) until the pressure at the tap (40) increases to
approximately 490 kPa (72 psi).
Note: Pressure adjustments should always be made when increasing the pressure.
c.Press the Cancel switch (36) to store the data in the controller
de.
Once the data is stored in the screen controller (4), it changes to [2 0],
which indicates that the first point calibration has been accepted and the second point of
calibration can be performed. At this moment, the screen is flickering
the light mode will switch to a continuous lighting mode.
9. To define 'Calibration point no. 2', follow these steps:
a.Pulse Switch (34) until the pressure at the tap (40) is less than 2450 kPa
(355 psi).
b. Switch Press AEC (31) until the pressure at the tap (40) increases
approximately 2450 kPa (355 psi).
Note: Pressure adjustments must always be made with the increase in pressure.
c. Press the Cancel switch (36) to store the data in the controller
de.
Once the data is stored in the controller, the screen (4) will change to [1
0], which indicates that the second point calibration has been accepted and the controller has
reprogrammed for the first calibration point.
10th stop "Calibration mode" (unless another function selection is desired).
See the section "Stop calibration procedure mode of".
Calibration mode stop procedure
See image

Electronic Monitor Panel (stop calibration mode)

(4) screen characters. (37) service switch.
Use either of the two methods below:
1. Place the engine in low idle position and turn the engine start switch to
the OFF position.
2. Press the service switch (37) for a minimum of two seconds until the
character (4) change the "Calibration Mode" screen to motor speed dial
position.

Adjustment after the replacement of

main components
When the main components of the control system have been replaced
electronic, adjustment is required.
The main components include:
Governor actuator
Proportional reduction valve
Motor speed sensor
Controller
Governor actuator
View image

Pump compartment
accelerator cable
See image

Engine compartment
cable of interior cable (accelerator).
View image
Installation of accelerator and decelerator
throttle cable
outer cable (decelerator).
the nut
Initial configuration of the actuator governor
Note: This procedure does not require a new governor actuator that is
correctly calibrated for the initial (factory) setting of the position selector '10'.
1.Connect the governor actuator harness (2) to the connector of.
2. Set the high idle position to '10' (initial adjustment) by activating the mode of
calibration of the automatic actuator. Refer to the section of this module "Mode of
calibración", actuador automático gobernador (G/A) calibración"
Throttle Cable Adjustment
1. The throttle cable (1) is identified by its seal. Turn the nut (11) and the lock nut.
the accelerator cable (1) to the left until they are as separated as
be possible.
Note: If the identification seal is missing, the throttle cable (1) is the upper cable.
when viewed from the governor actuator (2).
2. Place interior cable (5) in the inner slot (the slot closest to the motor) of
the pulley (6).
3. (to the left seen from the top of the machine) to wind wire
interior cable (5) pulley (6).
4. place the "T" end of the inner cable wire (5) in the groove (10). Make sure that
the "T" end of the inner cable thread (5) is in line with the internal slot (slot
closer to the engine) after installation.
5. place the threaded portion of the throttle cable (1) in the upper slot of the support
(8).
6. pulley to the right (as seen from the top of the
machine) to the idle stop high position (full rotation).
7. hold the pulley (6) against the high position of the idle stop and turn the nut (11) towards the
right until the slack of the internal cable (5) disappears. Tighten the nut (11)
approximately an additional two manual laps.
8.torque nut (standard torsional stress) (9) against the support (8).
Throttle cable adjustment
1. turn the nut (12) and the lock nut (13) of the decelerator cable (4) to the left
until they are as far apart as possible.
2. Place the exterior cable (7) in the outer slot (the groove farthest from the motor) of
the pulley (6).
3.wrap outdoor wire cable (7) (to the right as viewed from the top of the
machine) pulley (6).
4. Place the 'T' end of the outdoor cable (7) in the slot (10). Make sure to
that the "T" end of the external cable (7) is in line with the external groove
(the furthest ridge from the engine) after installation.
5. Place the threaded part of the decelerator cable (4) in the upper slot of the mount.
Make sure that the outer wire cable (7) remains in the outer groove of
the pulley (6).
6. Finger tighten the nut (12) against the support (8).
Loosen nut (12) approximately two turns to provide clearance in the
outdoor cable (7).
8. torsional stress (standard torsional stress) fastening nut (13) against the
support (8). Make some cuts (12) of the nut in the position of the threaded part of
cable of the decelerator (4) and tighten the locknut (13) against the support (8).
9. Reinstall the throttle cable clamps (4) and the cable of the
accelerator (1). Do not allow the cables to twist.
Note: Check to ensure that the governor is in contact with the lever
inactive brake. Also make sure that the nuts (11) and (12) are tightened
correctly so that the throttle cable (1) is under tension and cable of
decelerator (4) has a small amount of paraffin. Do not do it in adjustment of
incorrect engine speed, or overload of the governor actuator. Governor
Actuator (2) should not be used until the calibration procedure is completed. If
the actuator (2) is operated before completing the calibration procedure, calibrate.
Calibration of the governor actuator
Reference: It refers to the section of this module, 'Calibration Mode',
"Governor actuator of automatic calibration".
Start the engine and perform the 'governor actuator automatic calibration'.
activating "Startup mode calibration."
2. after correctly calibrating, clear the error log information.
Reference: It refers to the section of this module, 'Calibration Mode', 'Error
Log.

Proportional reduction valve

1. calibrate the proportional reduction valve.
Reference: See the section of this module, "Calibration of reduction valve"
proportional" in the calibration mode of".
2. After the proportional reduction valve is properly calibrated, of course the
error registration information.
Reference: See the section of this module, 'Error Log' in calibration mode
del"".

Motor speed sensor (magnetic pickup)

See image

Installation of Motor Speed Sensor

speed sensor

NOTICE
 The engine should not be run before adjusting the speed sensor of
motor.

1. With the engine off, slowly press the speed sensor (1) on the box steering wheel (5)
until the magnetic core (3) is in contact with the gear (4).
2.new speed sensor of 1/2 turn and temporarily tighten the lock nut (2).
3. with the motor speed selector at the beginning of position '1' (position of
low idle) of the engine.
4. start the program "Data mode" and select the display function
motor speed.
Reference: It refers to the section of this module, "Data mode", "Speed
of the engine.

The character screen must display a speed of approximately 800 rpm.

If the character appears, it does not read the correct RPM, gradually tighten the speed sensor.
Do not turn more than 120°.
7. If satisfactory, stop the engine and tighten the locking nut (2) to a torque of 44 N·m (32

8. After the speed sensor calibration is correct, clear the information of

error log.
Reference: See the section of this module, 'Error Log' in calibration mode

Controller
1.Before disassembling/assembling the controller, make sure to turn off the switch.
disconnection to the OFF position.
2. carry out the automatic governor calibration procedure.
Reference: See the section of this module, 'Automatic actuator calibration of'
"governor" in calibration mode.
3. carry out the calibration procedure for the proportional pressure reducing valve.

Reference: See the section of this module, "Reduction Valve Calibration"

"proportional" in the mode of the calibration of "".

Input and output controller diagram (signals of

tension under normal operating conditions
See image
Connection terminal number (Pin) of the regulator and
voltage specifications
See image

Voltage specifications
See image

See image