geo-FENNEL Selection PRO FLG 40-PowerCross GREEN SP User manual

FL 40-PowerCross SP
Service Manual

Service Manual FL 40-CrossPointer SP
1
Contents
1. Service flow of the instrument
2．Accuracy calibration
2.1 Setting the reference
2.2 Sort of the error and calibration methods
3．Adjustment for alarming range
4．Disassembly and assembly of the instrument
4.1 Disassembly of the instrument
4.2 Circuit diagram
4.3 Assembly of the instrument

Service Manual FL 40-CrossPointer SP
2
1、Service flow of the instrument
2、Accuracy calibration
2.1 Setting of the reference (figure 1)
Figure 1
Service
step
Contents
Malfunction
Cause
Method
Step 1
Appearance of
the instrument
Damage
/
Change damaged parts
Step 2
Power on with
new battery, the
power LED
Not lighted
1.Mount the batteries
wrongly(polarity)
2The power supply
connecting line is
broken
1. Change the polarity of
the battery
2.Jointing the broken
connecting line
Step 3
Laser output
No laser line
1.The leading line to
the laser module is
broken
2.The hairspring is
broken
3. The 1# controling
PCB is broken
1. Jointing the broken
connecting line
2. Change the broken
hairspring
3. Change 1# circuit board
Laser line is dim
The laser diode is
broken
Change laser module
Step 4
Accuracy of
horizontal line
Parallel
1.The adjusting screw
or the fine adjusting
screw is loose
2.The gamel part is
moving
1.See 2.2.1.1
2.Change the gemel
Gradient
1.See 2.2.1.1
2.Change the gemel
Curving
1.See 2.2.1.1
2.Change the gemel
Step 5
Accuracy of
vertical line
Gradient
1.See 2.2.1.1
2.Change the gemel
Curving
1.See 2.2.1.1
2.Change the gemel
Step 6
Alarming range
No alarm beyond
range
The connecting line
of2# PCB is broken
Insert the connecting line
tightly
Alarming range is
not coincident
The 2# PCB is loosed
See 3

Service Manual FL 40-CrossPointer SP
3
The reference should meet the requirements as follows:
a) The debug platform should be in horizontal, the error is less than 5′
b) The centre of debug clamp is 5m from the wall, is 2.8m from plumb up dot and is 1m from plumb down
dot.
c) The angle between outmost two reference dots of the horizontal line and the checked instrument is more
than 90°.
d) The angle between outmost two reference dots of the vertical line and the checked instrument is more
than 90°, beyond plumb up dot.
e) The accuracy of the reference is not less than 0.05mm/m.
f) Put the adjacent light ruler to the right front of the adjusting platform, the”0”position
Of the adjacent light ruler should be consistent with the horizontal reference”0”position.
2.2 Sort of the error and calibration methods
2.2.1 Parallel error
The laser line is a bit windage to the reference line, and the values of both sides of laser line is coincident
with the reference line, this error is parallel error.
Figure 2
2.2.1.1 Calibration of parallel error of horizontal laser line
1）Put the instrument on the reference platform. Unlock the instrument, power on all laser indicators.
2）Rotate main unit, let the vertical laser line V1 coincident with the reference line roughly
3）Observe the locations of the horizontal laser line and reference line on the wall. If the horizontal laser line

Service Manual FL 40-CrossPointer SP
4
and the horizontal reference line are parallel, i.e. parallel error, please calibrate as the follow methods:
Note: observe whether there is error between the horizontal laser line and the adjacent light ruler reference.
If there is error, please calculate the error into the reference on the wall. (if the adjacent light ruler laser line
locates on +2, the laser line on wall reference locates on +2 too, it means the laser line is in horizontal in this
direction, there is no need calibration.)
2.2.1.1.1 If the excursion is not more than 10mm, adjust the adjusting screw in two self check hole on point A
on the housing of the instrument (figure 3), make the horizontal laser line is coincident with the reference
line.
Figure 3
2.2.1.1.2 If the excursion is more than 3mm, disassemble the housing parts，disassemble the screws at B
（figure 3）,add weight stack（when horizontal line is lower than the reference）,remove the weight stack
（when the horizontal line is higher than the reference）， keep the horizontal line in a distance range of 10mm
to the reference line, and adjust 3 fine adjusting screw at C finally to make the horizontal line superposition
with the reference line.
2.2.2 Gradient error
As showed in Fifure 4, the laser line is incline to the reference line, this kind of error called gradient error

Service Manual FL 40-CrossPointer SP
5
Figure 4
2.2.2.1 The calibration of horizontal line gradient error
1）Put the instrument on the reference platform.Ppower on all laser indicators.
2）Rotate the unit, let the vertical laser line V approximately coincident with the reference line.
3）Observe the locations of the horizontal laser line and reference line on the wall. If the horizontal laser line
and the reference line are gradient relatively, i.e. gradient error, please calibrate as the follow methods:
2.2.2.1.1 If the excursion is not more than 3mm, adjust the adjusting screw in two self check hole on point A
on the housing of the instrument (figure 3), make the horizontal laser line coincident with the reference line.
2.2.2.1.2 If the excursion is more than 3mm, disassemble the housing parts, adjust the two screws on point
D (figure 3). When adjust the two screws on point D, it need to loosen one screw before tighten another
screw, until the horizontal laser line is coincident with the reference line. The degrees of tightness of the two
screws should be nearly the same finally.
2.2.2.2 Calibration of gradient error of vertical laser line
1）Put the instrument on the reference platform. Power on all laser indicators.
2）Rotate the upper part of the unit, let the vertical laser line V coincident with the reference line.
3）Observe the locations of the vertical laser line and reference line on the wall. If the vertical laser line and
the vertical reference line are gradient, i.e. gradient error, please calibrate as the follow methods:
Disassemble the housing parts, adjust the two screws on point E (figure 3). When adjust the two screws on
point E, it need to loosen one screw before tighten another screw, until the vertical laser line is coincident
with the vertical reference line. The degrees of tightness of the two screws should be nearly the same finally.

Service Manual FL 40-CrossPointer SP
6
2.2.3 Curving error
The laser line is curving to the reference line relatively, this error is curving error.(Figure 5)
Figure 5
2.2.3.1 Calibration of curving error of horizontal laser line
1）Put the instrument on the reference platform. Power on all laser indicators.
2）Rotate the upper part of the unit, let the vertical laser line V is coincident with the reference line
3）Observe the locations of the laser line and reference line on the wall. If the horizontal laser line and the
reference line are curving relatively, i.e. curving error, please calibrate as the follow methods:
Disassemble the housing parts firstly, adjust the two screws on point G (figure 3). When adjust the two
screws on point G, it need to loosen one screw before tighten another screw, until the horizontal laser line
icoincident with the reference line. The degrees of tightness of the two screws should be nearly the same
finally.
2.2.3.2 Calibration of curving error of vertical laser line
1）Put the instrument on the reference platform. Power on all laser indicators.
2）Rotate the unit, let the vertical laser line V is coincident with the reference line.
3）Observe the locations of the laser line and reference line on the wall. If the vertical laser line and the
vertical reference line are curving relatively, i.e. curving error, please calibrate as the follow methods:
Disassemble the housing parts at first, adjust the two screws on point F (figure 3). When adjust the two
screws on point F, it need to loosen one screw before tighten another screw, until the vertical laser line is
coincident with the vertical reference line. The degrees of tightness of the two screws should be nearly the
same finally.

Service Manual FL 40-CrossPointer SP
7
3. Maintenance of alarming range
Set up the instrument on adjustable inclined block, alarming range of all sides of the instrument are not
coincident, and the relative differences between fore-and-aft and
right-and-left is bigger, it will influence your usage, then it need to
adjust again. Disassemble the housing parts when repairing, put
the instrument on the horizontal platform, loosen the two screws
（3-1）of alarming ring 2# connecting PC board （3-13）. Then
move 3# connecting PC board in horizontal, make the alarming
pole of 2# alarming PC board （3-13）locate in the centre of the
alarming ring, then fasten the screws. When the
incline degree of any direction is more than 4°, it should appear
alarming if beyond the range. After finishing the adjustment,
fasten two screws of fixing circuit board, and fasten it with 706
glue water (figure 6). Figure 6
4. Disassembly and assembly of the instrument
4.1 Disassembly of the instrument
4.1.1 Disassembly of the main unit（Figure 7）
Figure 7
1
Housing module
2
Cross-head plate tapping screw
ST2.9X9.5（3）
3
Core part
4
Base part
5
Cross-head plate screw ST2.2X9.5
（4）
6
Bracket part
1
2(3)
3
4
6
5(4)

Service Manual FL 40-CrossPointer SP
8
1）Turn on the screw of the bracket part (6), take off the bracket part (6) from the main unit.
2）Use a cross screwdriver to turn off 4pcs cross-head plate tapping screw ST2.2x9.5（5）, take off the
housing module (1), unfix the connecting pin between the the 1# circuit board on the housing and the core
part(3), disassemble the housing part(1)
3）Use a cross screwdriver to turn off 3 pcs cross-head plate tapping screw ST2.9x9.5（3）, and take off the
core part(3) and the base part(4)
4.1.2 Housing module（1）（ Figure 8）
1）Move off the keypad with a cutter（1-1）
2）Use a cross screwdriver to turn off 4 pcs cross-head plate tapping screw ST2.2x5（1-4）, and take off 1#
operation PC board （G609-1#operation PC board）(1-3).
3）Pull a little harder to move off the horizontal window frame part，disassemble the horizontalwindow glass
(1-6）and the horizontal window frame（1-5）
4）Wipe off the glue on the vertical window glass by a cutter, disassemble the vertical window glass（1-7）
5）Use a tweezer to move off 2 closing plugs（1-8），disassemble
the housing（1-2）
Figure 8
1-1
Keypad
1-2
Housing
1-3
1#operation PC board/G609-1#
operation PC board
1-4
Cross head plate tapping
screws ST2.2X5(4)
1-5
Horizontal window frame
1-6
Horizontal window glass
1-7
Vertical window glass
1-8
Closing plug（2）
1-1
1-2 1-7
1-8(2)
1-6
1-5
1-3
1-4(4)

Service Manual FL 40-CrossPointer SP
9
4.1.3 Disassembly of the Core part（3）（Figure 9）
Figure 9
1）Cut off 4 hairsprings by a electric iron, then cut off the alarming leading line on3# connecting PCB（3-2）,
then move off the 4 leading line of laser module from the 4# alarming PCB（G609-4#Alarming PCB）（3-4）
2）Screw off 2 pcs of cross-head plate screws M2X5（3-1）by a cross srewdriver, take off 3# connecting PCB
（3-2）
3）Screw off 2 pcs of cross-head plate screws M2X5（3-1）by a cross srewdriver, take off 2# connecting PCB
（3-13）and 2 big gaskets（3-14）
4）Screw off 2 pcs of cross-head plate screws M2X8（3-5）, move off the weight stack（3-6）
5）Screw off 2 pcs of cross-head plate screws M2X5（3-1）by a cross srewdriver, move off 4# alarming PCB
（G609-4# alarming PCB）（3-4）
6）Screw off 1 pc of cross-head plate screw M2X10（3-9）by a cross srewdriver，move off horizontal laser
module（green laser module）（3-10）
7）Screw off 2 pcs of cross-head plate screw M2X10（3-8）by a cross srewdriver，move off vertical laser
module（green laser module）（3-12）
3-1
Cross-head plate screws
M2X5(6)
3-2
3# Connecting PC board
3-3
Gemel part/G609-gemel part
3-4
4#Alarming PC board/G609-4#
Alarming PC board
3-5
Cross-head plate screws
M2X8(2)
3-6
Weight stack
3-7
Pendulum
3-8
Cross-head sunk screw M2X10
3-9
Cross-head plate screws
M2X10(3)
3-10
Horizontal laser module / green
laser module
3-11
Fine adjusting screw M6X10（3）
3-12
Horizontal laser module/ green
laser module
3-13
2# connecting PC board
3-14
Big gasket (2）
3-1(2)
3-2
3-3
3-1(2)
3-4
3-5(2)
3-6
3-7 3-8
3-9(3)
3-10
3-11(3)
3-12
3-13
3-14(2)
3-1(2)

Service Manual FL 40-CrossPointer SP
10
8）Screw off 3pcs of fine adjusting screw M6X10（3-11）by a inner hexagon spanner, take off gemel part
（G609-gemel part）（3-3）
4.1.4 The disassemble of the base part (4)（Figure 10）
Figure 10
1）Screw off 3 pcs of cross-head plate tapping screw S2.2X5（4-1）by a cross srewdriver，move off magnet
(4-12), pressing board (4-11), bump-proof ring (4-10).
2）Screw off 3 pcs of cross-head plate tapping screw S2.2X5（4-1）by a cross srewdriver，move off inserting
block (4-13)，battery cover part (4-9）
3）Use electric iron to burn down the leading line of the power supply plug，move off the contacting part（4-6）
4）Screw off 3 pcs of nut M2.5（4-2）by a cross srewdriver, move off 6 pcs of gasket 2.5（4-3）, 3pcs of
Soldering sheet 2.5（4-4）, 3pcs of spring（4-7）、 3 pcs of cross head plate screw M2.5X10（4-8），separate
the base（4-5）
4-1
Cross-head plate tapping
screws S2.2X5（5）
4-2
Nut M2.5（3）
4-3
Gasket 2.5（6）
4-4
Soldering sheet 2.5（3）
4-5
Base
4-6
Contacting part
4-7
Spring （3）
4-8
Cross-head plate screw
M2.5X10（3）
4-9
Battery cover part
4-10
Bump-proof ring
4-11
Pressing board
4-12
Magnet
4-13
Inserting block
4-2(3)
4-3(6)
4-4(3)
4-5
4-1(2) 4-13
4-6
4-7(3)
4-8(3)
4-9
4-12
4-1(3)
4-11
4-10

Service Manual FL 40-CrossPointer SP
11
4.1.5 Disassembly of the bracket part（6）（ Figure 11）
Figure11
1）Screw off 2 pcs of cross-head plate tapping screw
ST2.9X9.5（6-7）by a cross srewdriver，move off upper cover board（6-16）
2）Pull a little harder to pull out the lifting bracket part，move off 2 pcs of locking sheet（6-2）.
3）Screw off 3 pcs of cross-head plate tapping screw ST2.9X9.5（6-7）by a cross srewdriver，move off lifting
cover board（6-15）
6-1
Lifting bracket
6-2
Locking sheet（2）
6-3
Damping bracket
6-4
Cross head plate tapping screw
ST2.2X5（5）
6-5
Locking ring 5
6-6
Cam
6-7
Cross head plate tapping screw
ST2.9X9.5（9）
6-8
Magnet（2）
6-9
Cross head plate tapping screw
ST2.9X6（4）
6-10
Side cover board
6-11
Magnetic conducting plate
6-12
Plug
6-13
Base cover board
6-14
Base bracket
6-15
Lifting cover board
6-16
Upper cover board
6-17
Locking ring 6
6-18
Gasket（2）
6-19
Saddle pad（2）
6-20
Knob
6-21
Press cover
6-22
Turnplate
6-3
6-4
6-5
6-6
6-11
6-7(2)
6-12(4)
6-8(2)
8-9(4)
6-4(4)
6-10
6-7(4)
6-13
6-14
6-7(3)
6-15
6-17
6-18(2)
6-19(2)
6-16
6-20
6-21
6-226-1
6-2

Service Manual FL 40-CrossPointer SP
12
4）Move off the Locking ring 5（6-5）by a sharp-nose pliers，saperate the knob（6-20）、 press cover（6-21）、
cam（6-6）
5）Screw off 1 pc of cross-head plate tapping screw ST2.2X5（6-4）by a cross srewdriver，move off damping
bracket（6-3）
6）Move off the Locking ring 6（6-17），saperate turnplate（6-22）、 2 pcs of gasket（6-18）、 2 pcs of saddle
pad（6-19）、 lifting bracket（6-1）
7）Screw off 4 pcs of cross-head plate tapping screw ST2.9X9.5（6-7），move off the base cover board（6-13）
8）Screw off 4 pcs of cross-head plate tapping screw ST2.9X6（6-9），move off the side cover board（6-10）,
plug（6-12）
9）Screw off 4 pcs of cross-head plate tapping screw ST2.2X5（6-4），move off magnet（6-8）、magnetic
conducting plate（6-11），saperate the base bracket（6-14）

Service Manual FL 40-CrossPointer SP
13
4.2 Circuit diagram
Figure 11
As showed in figure 11，connect the corresponding connecting line to each PCBs accordingly.。
Solder 4 hairsprings to the corresponding place of4#Alarming PC board (or G609-4# Alarming PC board)
（3-4）and 3# Connecting PC board.The hairspring is a 0.06mm(diameter)/80mm(length) brass wire.

Service Manual FL 40-CrossPointer SP
14
4.3.Assembly of the instrument
The assembly of the instrument is the contrary process of its disassembly. Jointing of each screw need to
rotate tightly, except for the situation that note especially.
Requirement of assembly:
a) Gelatinize 706 glue water on the jointing as follows:
The interface between base（4-5）and inserting block（4-13）
Lifting bracket（6-1）and press cover（6-21）
Fine adjusting screw M6X10（3-11）and the main unit body
b）Gelatinize 504 glue water on the jointing as follows:
Gemel part（3-3）and pendulum（3-7）
Locking ring 6（6-17）and gasket（6-18）
Vertical window glass（1-7）and housing（1-2）