Part VI
Maintenance
Inspection before start of day’s work ............................................. VI-2
Maintaining hydraulic system......................................................... VI-4
Hydraulic system ........................................................................ VI-4
Checking hydraulic oil level ........................................................ VI-4
Changing hydraulic oil ................................................................ VI-4
Lubrication ..................................................................................... VI-6
VI-1
INSPECTION BEFORE START OF DAY'S
WORK
Inspection before the start of the day's work is very important for the
safe and trouble-free operation of the machine. Before starting the
operation of the machine, be sure to inspect the following items.
No.
1
2
3
4
Item
Primary power cable is not
damaged.
Method
Visually check.
Remedy
If cable is damaged, change
it.
Switches, buttons, and lights Visually and tactually check.
are not functionally or
visually damaged.
If switches and buttons
malfunction or are damaged,
and if lights are burnt out,
change them.
Aurally check.
Hydraulic pump and
hydraulic pump motor do not
produce abnormal noise.
If abnormal noise is heard,
contact AMADA.
There are no hydraulic oil
leaks.
Visually check.
If there is hydraulic oil leak,
repair it. If it is difficult to
repair, contact AMADA.
Lower beam normally
operates.
1 Set tool origin with tools
installed on machine.
If lower beam does not move
up and down, or cycles two
or more strokes when UP
foot pedal is pressed and
held, contact AMADA.
2 Change to SETUP
display.
3 Increase D target value.
5
4 Turn MODE SELECT
switch to SINGLE.
5 Press and hold UP foot
pedal.
6 Check that lower beam
stops after each stroke.
EMERGENCY STOP
buttons normally operate.
1 Set tool origin with tools
installed on machine.
2 Change to SETUP
display.
If lower beam does not stop
when EMERGENCY STOP
button is pressed, contact
AMADA.
3 Increase D target value.
6
4 Press UP foot pedal, and
press one of
EMERGENCY STOP
buttons while lower beam
is rising.
Tools are fixed in place.
7
VI-2
Visually and tactually check.
Correctly install tools.
(Refer to "Changing tools" in
Part IV, Operation.)
No.
8
9
10
Item
Tools are not damaged.
Method
Visually check.
Remedy
If tools are damaged,
change them.
Hydraulic oil level is proper. Visually check.
(When lower beam is at
lower limit, hydraulic oil level
is near middle of oil gauge.)
If hydraulic oil level is low,
add hydraulic oil. (Refer to
"Maintaining hydraulic
system" in this Part.)
LCD screen is bright.
O Adjust with bright control
at bottom of NC control
box.
Visually check.
O If LCD screen is not still
enough, change its
backlight.
(For applicable standard,
refer to warranty.)
VI-3
MAINTAINING HYDRAULIC SYSTEM
Hydraulic system
•
Be sure to fill the hydraulic oil tank with hydraulic oil to the middle
[FBDIII-3512–1253] or upper end [FBDIII-1503–2004] of the oil
gauge.
•
Check that when hydraulic pressure is applied, it is stably
indicated.
•
If the hydraulic oil is badly contaminated, change it.
NOTICE
O When dirt, dust, and other foreign matter are deposited in large amounts in
the hydraulic circuit, the hydraulic pump may produce abnormal noise and
decrease in discharge capacity, and the lower beam may decrease in rising
speed and vibrate. These conditions are attributable to the filters in the
hydraulic oil tank. Remove and clean the filters.
Checking hydraulic oil level
Move the lower beam to the lower limit, turn the POWER ON/OFF
switch to OFF, and check that the hydraulic oil is filled to the middle
[FBDIII-3512–1253] or upper end [FBDIII-1503–2004] of the oil gauge.
If the hydraulic oil level is low, add the hydraulic oil through the filler
opening at the top of the tank.
NOTICE
O Be sure to add the same hydraulic oil as originally used.
Changing hydraulic oil
Change the hydraulic oil after about first three months of machine
operation and every year thereafter. (The hydraulic oil should be
changed entirely even if it was added in the midway.)
Model
Tank capacity, Liters
(US gal)
3512, 5012, 5020, 8020, 8025
70 (18.4)
1025, 1030, 1253
90 (23.7)
1503, 1504, 2003, 2004
140 (36.8)
Recommended oil
For use at normal temperature: Esso Teresso 46 and Shell Tellus Oil 46
(ISO VG56 Viscosity Index 113)
For use at lower temperature: Esso Spinesso 22 and Shell Tellus Oil
C22
VI-4
NOTICE
O When the hydraulic oil is changed, also clean the filters in the hydraulic oil
tank.
O For handling the lubricants and their chemical composition and other details,
refer to the Appendix.
Change the hydraulic oil as described below.
1
Move down the lower beam to the lower limit.
2
Press the HYDRAULIC OFF button. The hydraulic pump motor
stops, and the light of the HYDRAULIC ON button goes out.
3
Turn the POWER ON/OFF switch to OFF. The power of the NC
unit is turned off.
4
Remove the filler cap at the top of the tank.
5
Drain the old hydraulic oil from the tank into an empty can, using a
pump.
If the pump is not available, prepare an empty can of such a
capacity as to match the tank capacity (refer to the table on the
previous page), and place it below the drain plug of the tank.
Remove the drain plug to drain the old hydraulic oil from the tank
into the can.
6
Remove all bolts fixing the side covers of the tank, and remove the
side covers.
7
Wipe the inside of the tank with clean cloth.
8
Remove all filters from the tank.
9
Blow the dust off the inside of the filters with an air gun.
10
Replace the filters.
11
Replace the tank side covers.
12
Replace the drain plug if removed.
13
Pour new hydraulic oil through the filler opening into the tank.
14
Tighten the filler cap.
VI-5
LUBRICATION
Lubrication is very important to maintain bending accuracy and avoid
machine troubles. Be sure to lubricate the following parts periodically.
Main cylinders
Apply grease through the grease nipples, one each in the left and right
cylinders.
Lubricant: Shell Alvania EP Grease R0 or equivalent
Lubrication interval: Three months
Guide rollers
Apply grease to four guide rollers, two each at the top, bottom, left and
right.
Lubricant: Shell Alvania EP Grease R0 or equivalent
Lubrication interval: Six months
VI-6
Backgauge
Recommended lubricant
For ball screws: THK THKAFC Grease or equivalent
For LM guides: THK THKAFB Grease or equivalent
For Y-axis rack and pinion: Shell Alvania EP Grease 2 or equivalent
Lubrication interval: Six months
L-axis
Remove the backgauge rail cover, and apply grease through the grease
nipples in the front and rear LM guide blocks.
NOTE
O The front and rear LM guide blocks are fitted with two grease nipples each.
Apply grease first through the grease nipple that is most easy to do so.
GREASE NIPPLE
L-AXIS LM GUIDE BLOCKS
GREASE
NIPPLE
GREASE NIPPLE
GREASE NIPPLE
VI-7
Z-axis
Remove the brake cover in the rear part of the Z-axis, turn the POWER
ON/OFF switch to OFF with Z = 180, and apply grease through the ball
screw and LM guide grease nipples.
LM GUIDE GREASE NIPPLE
BALL SCREW GREASE NIPPLE
Y-axis
Apply grease to the rack and pinion. Apply grease through the grease
nipples to the Y-axis LM guides and Y-axis tilted LM guides in the
stoppers.
VI-8