Service Manual Type 1047 / 1048 Construction Type 1049 / 1050 / 1051 Industrial 3.56.1 Adjustment protocol V4.7 A 924 C LI LHB/en/Edition: 03/2010 copyright by MJFCIFSS Adjustment protocol V4.7 A 924 C LI 1 Type 1047 / 1048 Construction Type 1049 / 1050 / 1051 Industrial Valid from serial number 39037 1.1 From software version V4.7 Date: Mechanic: Cust.: Type: Serial number: Operating hours: Check/adjustment Unit Setting Value measured during test Value measured after adjustment Location of adjustment Measuring point Machine-specific data Machine type Serial number Software versions Operating voltage Operating hours Diesel engine Low idle rpm rpm 900 +100 ....... High idle rpm rpm 1950 +50 ....... Operating conditions Oil temperature Warming up equipment C° > 50 +10 ....... .......
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Type 1047 / 1048 Construction Type 1049 / 1050 / 1051 Industrial ... · Adjustment protocol V4.7 A 924 C LI Service Manual Type 1047 / 1048 Construction Type 1049 / 1050 / 1051 Industrial
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Service ManualType 1047 / 1048 Construction Type 1049 / 1050 / 1051 Industrial
Adjustment protocol V4.7 A 924 C LI Service ManualType 1047 / 1048 Construction Type 1049 / 1050 / 1051 Industrial
LHB
/en/
Edi
tion:
03/
2010
3.56.2copyright by
MJFCIFSS
Pilot pressure
Preselect mode P.Adjustment at the valve 51
Pilot pressure bar 32 ±1 ...... ....... 51 49
Limit load control / flow reduction
Valves Y50 (LR) / Y51 (LS)
Adjustment in menu:In menu "set data", select "set control 2.1".
Check/adjustment Uni
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Valu
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Valu
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Loca
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Service ManualType 1047 / 1048 Construction Type 1049 / 1050 / 1051 Industrial
3.56.3
Adjustment protocol V4.7 A 924 C LILH
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Set submenu reg. valve min to (ON).
Proportional valve min.
Test pressure Y51 (tank pressure) bar < 1,0 ...... ...... ...... 57
Test pressure Y50 bar 2.0 ±0.5 ...... ...... ...... 59
Test current mA approx. 200
Set submenu reg. valve 50% to (ON).
Proportional valve 50%
Test pressure Y51 bar 9.0 ±1 ...... ...... ...... 57
Test pressure Y50 bar 6.5 ±1 ...... ...... ...... 59
Test current mA approx. 500
...... ...... ......
Set submenu reg. valve max to (ON).
Proportional valve max.
Test pressure Y51 bar 21.0 ±1 ...... ...... ...... 57
Test pressure Y50 bar 11.0 ±1 ...... ...... ...... 59
Test current mA approx. 800
...... ...... ......
Set submenu reg. valve emergency to (ON).Regulating pressure in emergency mode with tilted lever. Remove the cotter pin and tilt the le-ver.After completion of the adjustment, set the lever to its normal position.
Test pressure for emergency operati-on
Test pressure bar 3.5 ±0.5 ...... ...... ...... 59
Test current mA < 30 ...... ...... ......
Check/adjustment Uni
t
Setti
ng
Valu
e m
easu
red
durin
g te
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Valu
e m
easu
red
afte
r adj
ustm
ent
Loca
tion
of
adju
stm
ent
Mea
surin
g po
int
Adjustment protocol V4.7 A 924 C LI Service ManualType 1047 / 1048 Construction Type 1049 / 1050 / 1051 Industrial
LHB
/en/
Edi
tion:
03/
2010
3.56.4copyright by
MJFCIFSS
Hydraulic begin of regulation of the variable-displacement pump P1/P2
Adjustment in menu:In menu "set data", submenu "set control 2.1", set begin of reg. P1/P2 to (ON).
Check LR pressure.Tank pressure bar < 1,0 59
Double variable-displacement pump P1:
Reduce the pressure value of the secondary pressure-relief valve 261 (extending bucket cylinder)to a value below the begin of regula-tion, and then turn itin again until the control chamber pressure at the measuring point 44 begins to drop relative to 41.
Begin of regulation P1 bar 70 +2 ....... ....... 22.18
4144
Variable-displacement pump P2:
Reduce the pressure value of the secondary pressure-relief valve 261 (extending bucket cylinder)to a value below the begin of regula-tion, and then turn itin again until the control chamber pressure at the measuring point 43 begins to drop relative to 41.
Begin of regulation P2 bar 70 +2 ....... ....... 24.18
4143
Check/adjustment Uni
t
Setti
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Valu
e m
easu
red
durin
g te
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Valu
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red
afte
r adj
ustm
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Loca
tion
of
adju
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Mea
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Service ManualType 1047 / 1048 Construction Type 1049 / 1050 / 1051 Industrial
3.56.5
Adjustment protocol V4.7 A 924 C LILH
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MJFCIFSS
Differential pressure ( -p)
Adjustment in menu:In menu "set data", submenu "set control 2.1", set deltaP P1/P2 to (ON).
Check MLS pressure. Tank pressure bar < 1,0 ....... ....... 57
With extend bucket cylinder function:Set the secondary pressure-relief valve 261 to 120-140 bar (at the measuring point 41).Read the differential pressure ( -p) between 41 (MP) and 45 (LS).
Differential pressure bar 30 +2 ....... ....... 2 4145
Check/adjustment Uni
t
Setti
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Valu
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red
durin
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Valu
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red
afte
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ustm
ent
Loca
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of
adju
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Mea
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Adjustment protocol V4.7 A 924 C LI Service ManualType 1047 / 1048 Construction Type 1049 / 1050 / 1051 Industrial
LHB
/en/
Edi
tion:
03/
2010
3.56.6copyright by
MJFCIFSS
Output power of diesel engine (power test)
Note:Only carry out this test when you sus-pect problems (e.g. reduced power of diesel engine).Insert the service plug.Preselect mode P.
Lower the pressure value of the se-condary pressure-relief valves 242 (extending stick cylinder) and 261 (extending bucket cylinder) to a value below the test pressure.
Activate power test function at the display.
The fan is automatically set to nemer-gency.(I LR = 100%) - do not change.
Slowly increase the pressure value of the secondary pressure-relief valve 242 or 261 until the test value (guide value) is reached.
bar 135 -10 ....... ....... 242261
41
At test pressure, the speed of the die-sel engine may not drop below the ra-ted speed.
rpm 1800 +20 ....... .......
(read rpm on screen)Difference between measuring points.
bar < 10 ....... ....... 4144
41 - 44 (P1)41 - 43 (P2)
Check/adjustment Uni
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Setti
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Valu
e m
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red
durin
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Valu
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afte
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Loca
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of
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Mea
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Service ManualType 1047 / 1048 Construction Type 1049 / 1050 / 1051 Industrial
3.56.7
Adjustment protocol V4.7 A 924 C LILH
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MJFCIFSS
Pump valve
Preselect mode P.
Test pressure bar 45 - 60 ....... ....... 102 41
Measure check measurement X, if re-quired
(Q min. stop at variable-displacement pump)
mm approx. 27.0
....... ....... 102 X
Secondary pressure for working functions
Turn up the pressure cut-off valve101 screwed in(to max. 410 bar)Preselect mode P.
Note!For special attachments (e.g. verti-cally and horizontally adjustable boom), observe the instructions on the attached information signs, which refer to a reduced secondary pressu-re in the relevant control block sec-tions.
45
Check/adjustment Uni
t
Setti
ng
Valu
e m
easu
red
durin
g te
st
Valu
e m
easu
red
afte
r adj
ustm
ent
Loca
tion
of
adju
stm
ent
Mea
surin
g po
int
Adjustment protocol V4.7 A 924 C LI Service ManualType 1047 / 1048 Construction Type 1049 / 1050 / 1051 Industrial
LHB
/en/
Edi
tion:
03/
2010
3.56.8copyright by
MJFCIFSS
-Retracting boom cylinder bar 380 +20 ....... ....... 222 45
bar *80 +20 ....... ....... 222 45
-Extending boom cylinder bar 380 +20 ....... ....... 221 45
-Retracting stick cylinder bar 380 +20 ....... ....... 241 45
-Extending stick cylinder bar 380 +20 ....... ....... 242 45
-Retracting bucket cylinder bar 380 +20 ....... ....... 261 45
-Extending bucket cylinder bar 380 +20 ....... ....... 262 45
-Forward travel bar 380 +20 ....... ....... 177 45