CAPÍTULO 4. ANÁLISIS DE RESULTADOS
4.3 Tercer objetivo específico
4.3.1. Unidad de análisis: inteligencia emocional
(1) Drive shaft (2) Bearings (3) Cylinder with pistons (4) Center pin (5) Control lens (6) Q-min adjustment bolt (7) Q-max adjustment bolt (8) Pressure port (9) Tank port
Description.
Pump type A7F0 is a variable displacement pump, designed to operate in open circuits. It has an internal case drain return. The rotary group is a robust self aspirating unit. External forces may be applied to the drive shaft.
Changing the swivel angle of the rotary group is achieved by sliding the control lens along a cylindrical formed track by means of an adjusting screw. • With an increase in the swivel angel, the pump output increase together
with necessary drive torque.
• With an decrease in the swivel angel, the pump output decreases together with the necessary drive torque.
• When increasing to maximum swivel angle, there is a danger of cavitation and over-speeding the hydraulic motor!
4.0
10
13.02.07 PC5500-6-D_Sec_4-0_rev4a.doc
4.7 Radiator fan drive speed adjustment Basic Adjustment
Legend for illustration (Z 22400a):
(1) Dust cap
(2) Lock nut
(3) Set screw
(P) Axial piston pump (fixed displacement pump, with variable setting)
(6) Qmin stop bolt
(6.1) Lock nut
(7) Qmax stop bolt
(7.1) Lock nut
(10) Positioning pin (mover)
(168.1) Pressure relief valve – bottom oil cooler fan (Motor 1) (168.4) Pressure relief valve – top oil cooler fan (Motor 2)
(169.1) pressure reduction valve – bottom oil cooler fan (Motor 1) (169.2) pressure reduction valve – top oil cooler fan (Motor 2) (Y6A-1 /Y6B-1)) 4/3 direction flow valve – Motor 1
(Y6A-2 /Y6B-2)) 4/3 direction flow valve – Motor 2 (L1) Measurement of Qmin stop bolt
(L2) Measurement of Qmax stop bolt
(M5-1) Pressure check points - Motor 1 oil cooler fan drive operating pressure
(M5-2) Pressure check points - Motor 2 oil cooler fan drive operating pressure
)
• A blocked cooler, restricted air flow, defect cooler seal or bend fan influence the fan RPM and air volume.• Basic adjustment has to be carried out whenever one of the following components has been replaced:
- pump - relief valve - hydraulic motor
4.0
11
13.02.07 PC5500-6-D_Sec_4-0_rev4a.doc
Cont'd
4.7 Radiator fan drive speed adjustment Basic Adjustment max fan speed
1. Reduce the output flow of the respective pump (P),by adjusting the minimum possible swivel angle, to avoid over speeding the fan: To do this, loosen both lock nuts (6.1 + 7.1) and turn out bolt (6)and turn in bolt (7) up to final stop.
This is necessary to avoid a loose positioning pin (10), resulting in oscillating of the cylinder barrel.
Tighten the lock nuts.
2. Remove protection cap (1) from relief valve (168.x), loosen lock nut (2) and turn set screw (3) fully clockwise and then a half turn
counter clockwise.
3. Disconnect the plug connectors (Y6A-x and Y6B-x) of the 4/3 direction flow valve, to ensure that the full flow of pump P will be delivered to the fan motor. The valve is in neutral position and all ports are blocked.
4. Connect a pressure gauge to check point (M5-x). 5. Start the respective engine and let it run in high idle. 6. Check the fan speed with a non-contact rev counter
Required fan speed: 1250 min-1
• Be careful not to get caught in the fan or other rotating parts
7. Increase the output flow of pump P ,by adjusting the swivel angle, until the fan speed will be 20 min-1 higher than required:
To do this, loosen both lock nuts (6.1 + 7.1) and turn in bolt (6) and turn out bolt (7) the same length.
This is necessary to avoid a loose positioning pin (10), resulting in oscillating of the cylinder barrel.
Tighten the lock nuts (6.1 + 7.1).
• Do not exceed the maximum permissible operating pressure of 230 bar
)
• Note down the lengths ”L1” and ”L2” as reference measurements.4.0
12
13.02.07 PC5500-6-D_Sec_4-0_rev4a.doc
Cont'd
8. Loosen lock nut (2) of the relief valve (168.x), and decrease the pressure with set screw (3) until the correct fan speed is obtained. 9. Tighten lock nut (2) and fix protection cap (3).
Basic Adjustment middle fan speed
10. Activate the 4/3 direction flow valve (Y6B-x), by connecting the solenoid plug (Y6B-x ) to permanent 24 V. Use the 24V socket at the PTO *).
11. Check the fan speed with a non-contact rev counter Required fan speed: 1000 min-1
12. If adjustment is necessary loosen lock nut (5) of the relief valve (169.x), and decrease the pressure with set screw (4) until the correct fan speed is obtained.
13. Stop engine and reconnect the plugs to the correct positions. 14. Disconnect the pressure gauge from check point (M5-x).
Fan speed check
If the maximum fan speed is out of adjustment, increase or decrease first the pressure at relief valve (168.x), to change the speed.
• Do not exceed the maximum permissible operating pressure of 230 bar
If the speed can not be raised by increasing the pressure then increase the output flow of pump (10.x).
*) Prepare a test wire with a plug ET-No. 891 039 40, and a plug ET-No. 440 305 99. Connect terminal 1 to positive (+)
04.01.07 PC5500-6-D_Sec_5-0_rev4.doc
Table of contents section 5.0 Section Page
5.0 Controlling
General lay out 2
5.1 Control and filter panel location of components (valves, switches, sensors etc.)
3
5.2 Pilot Pressure Supply and Adjustments 4 – 7
5.3 Remote control valves arrangement 8
5.4 Function principle of the
Electro-Hydraulic- Proportional Control
9 + 10
5.5 Potentiometer Control (Lever, Joy Stick) 11
5.6 Potentiometer Control (Pedal) 12
5.7 Proportional amplifier module, Type A (for swing brake only)
13
5.8 Proportional amplifier module, Type B (for Boom, Stick, Bucket, Swing and Travel)
14
5.9 Ramp Time Module
(Analogue command value module for Boom, Stick, Travel and Swing function)
15
5.10 Adjustments of Amplifier Modules (General) 16 5.11 Adjusting the Amplifiers Type B 17 + 18 5.12 Adjusting the Amplifiers Type A 19 + 20
5.0
2
04.01.07 PC5500-6-D_Sec_5-0_rev4.doc X4 - pump support pressure X2 to (45.2); (45.3) and (43) pilot pressure pump regulation X1 - pump regulation pressure X3 – remote controlpressure (1/2Qmax; Qmin)
04.01.07 PC5500-6-D_Sec_5-0_rev4.doc
5.0 General lay out
Legend for illustration (Z 21631):
(7.1 / (7.2) Pumps for pilot pressure and pump regulation system (84.1 / 84.2) Check valve (for combined operation)
(68.1) Filter
(70.1) Pressure relief valve (X4 – pressure) (70.2) Pressure relief valve (X2 – pressure)
(85) Pressure accumulator (10 Liter, 10 bar pre-charge
pressure)
(91) Check valve
(45.1; 45.2 ;45.3, 43) Remote control valves (14; 15; 16; 13)) Control blocks
General
The controlling includes the pilot pressure system and the pump regulation system.
The pumps (7.1 / 7.2) forcing the oil through the filter (68.1) to all involved valves.
The pressure accumulator ensures that under any circumstances enough pilot pressure oil is available. The accumulator (85) is also functioning as a hydraulic battery for a certain time when the engine was shut down or to pressure relive the system for repair works.
When the operator is using his controls an electrical signal causes energizing of the selected solenoid valve of the remote control valves(14).
By the function of the remote control valves pilot pressure oil is send to the relevant control block spools which in turn allows operating hydraulic oil to the users.
5.0
3
04.01.07 PC5500-6-D_Sec_5-0_rev4.doc