DeWalt DW079LR T2 Series User manual

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DW079LG T2 & DCE079G T2
Series Service Manual
( V1.0/2023)
DW079LR T2 & DCE079R T2

-2 -
Main part diagram
Top Cover
Mid Secon
Base
Ridge Prism
Housing
Baery
Keypanel
Tripod
Aachment

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Maintenance step
2. Remove 4 screws and 3 self-tapping screws to take off top cover.
1. Remove 4 screws to take off Glass Cover Frame
..
Glass Cover
Frame
4 x Screws
Top cover
4 x Screws
3 x Self-tapping
Screws

3. Remove 4 screws and 3 self-tapping screws to take off Mid Section..
4 x Screws
3 x Self-tapping
Screws

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4. Below is a list of the main parts. Replace or repair these parts
according to the troubleshooting section.
Counter
Photo-Eye PCBA
Alarm Spring
Stepping motor
A&B
Compensaon
glass
Upper motor
Main PCBA
Supporng
Frame
Four M2.5
screws
Main PCBA
Main PCBA
Main PCBA
Main PCBA
907250
907250 NRL-MB-005_A11 DCE079R T2
DCE079G T2
907252 NRL-MB-005_A13
DW079LR T2
DW079LG T2
907251 NRL-MB-005_A12
907253 NRL-MB-005_A14

Support body
with Laser
Support body
with Laser
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Baery pack
Membrane
Switch

-7 -
９０６１３８ ＭＰＰ２－ｋｅｙｐａｄ－００２
Ｍｅｍｂｒａｎｅ Ｓｗｉｔｃｈ
（ＤＷ０７９ＬＧ＆ ＤＣＥ０７９Ｇ）
９０６１３７ ＭＰＰ２－ｋｅｙｐａｄ－００１
Ｍｅｍｂｒａｎｅ Ｓｗｉｔｃｈ
（ＤＷ０７９ＬＲ＆ ＤＣＥ０７９Ｒ）
traPniaMgnitoohselbuorTtcefeD
Horizontal application
defective
Check x-axis and y-axis bubble circuit
board connection cable ,or replace the
Membrane Switch
Calibration can't saved Replace the storage IC Main PCBA
Calibration limit beyond
precision scope Adjust the compensation glass /
Weak beam Replace the laser
Uneveling Replace stepping motor 904290 NRL800HT-01-02_04
Stepper Motor
Light is out of working Replace the Membrane Switch
Unit won't receive
remote control signal. Check receiver connection cable /
Vertical application
defective
Check z-axis bubble circuit board
connection cable ,or replace the
Membrane Switch
Rotation head loose from
frame. /wercsehtnetsaF
Battery indicator lights
flash
Battery voltage is low, need to
recharge /
No alarm Replace Main PCBA
Scan function defective Replace
Slope out of tolerance
Loosen the four M2.5 screws on the Main
PCBA. Move the Main PCBA
left or right to correct the slope.
Tighten the screws.
/
Unable to enter the
calibration mode Replace main PCBA
Button doesn't work Data cable looses ,reinstall the data
cable
/
Main PCBA
Main PCBA
９０６４８４ ＤＷ０８０ＬＧＳ－０１－０１＿８８
Ｍａｉｎ Ｌａｓｅｒ Ｍｏｄｕｌｅ（ＤＷ０７９ＬＧ）
９０６４８２ ＭＰＰ－０１－０１＿８８
Ｍａｉｎ Ｌａｓｅｒ Ｍｏｄｕｌｅ（ＤＷ０７９ＬＲ）
９０６４８５ ＤＷ０７９ＬＧ－００－００＿８８
Ｍａｉｎ Ｌａｓｅｒ Ｍｏｄｕｌｅ（ＤＣＥ０７９Ｇ）
９０６４８２ ＭＰＰ－０１－０１＿８８
Ｍａｉｎ Ｌａｓｅｒ Ｍｏｄｕｌｅ（ＤＣＥ０７９Ｒ）
９０６１３８ ＭＰＰ２－ｋｅｙｐａｄ－００２
Ｍｅｍｂｒａｎｅ Ｓｗｉｔｃｈ（ＧＲＥＥＮ）
９０６１３７ ＭＰＰ２－ｋｅｙｐａｄ－００１
Ｍｅｍｂｒａｎｅ Ｓｗｉｔｃｈ（ＲＥＤ）
９０６１３８ ＭＰＰ２－ｋｅｙｐａｄ－００２
Ｍｅｍｂｒａｎｅ Ｓｗｉｔｃｈ（ＧＲＥＥＮ）
９０６１３７ ＭＰＰ２－ｋｅｙｐａｄ－００１
Ｍｅｍｂｒａｎｅ Ｓｗｉｔｃｈ（ＲＥＤ）
９０５２４３ ＮＲＬ－ＥＣＶ－００１＿Ａ２０
Ｃｏｕｎｔｅｒ Ｐｈｏｔｏ－Ｅｙｅ ＰＣＢＡ

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5. Calibrate the repaired instrument.
1) Turn power on and let the instrument find its level , after the
instrument is level (need about 1 minute), switch it off;
2) Press and hold Slope button then press Power button
All the indicators will light up , indicating instrument is in calibration
mode;
to select X and Y axis.
select X direction adjustment, the X indicator will light up;
4) Press scan mode button to select dot mode; press
four times you can see the laser beam;
5) Adjust the beam to X mark and target by turn
(0 degree);
6) Adjust the beam to reference line by pressing or .
7) Rotate instrument 180 degrees with X facing the same target.
Calibrate X - axis
Calibrate Y - axis
Prism Cover
3)Press and hold RPM button or press

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8) Adjust the beam to reference line by pressing or
9) After adjustment is complete , press and hold slop button
to save the setting. All the indicators will light up & Buzzer sounds
indicating calibration is completed and setting are saved .
10) After saving the changes, restart the unit, check the X –axis for
accuracy; you should calibrate your instrume
nt again if accuracy is
over spec.
11) Use the same way tocalibrate Y-axis.
12) Place the instrument on the vertical application to calibrate Z-axis ,
repeat step 1 and step 2, the X&Y indicators will light up , adjust the
beam to reference line by pressing or , then repeat step 9
to save the calibration.
calibration saved