Echo DCS-1600 User manual

DCS-1600
ECHO:
(Serial number: 24000001 and after)
(Serial number: 35000001 and after)
Copyright C 2019 YAMABIKO Corporation All rights reserved.
REVISED May 2022
Ref. No. 401-43

INTRODUCTION
This service manual contains information for
service and maintenance of ECHO BATTERY
CHAINSAW, model DCS-1600.
For systematic diagnosis, to avoid extra work
and time loss, please refer to “Troubleshooting
chart” that describes problems, testing, reme-
dies and references. We recommend you make
use of Operator’s Manual and Parts Catalogue
together with this manual when servicing.
We are constantly working on technical improve-
ment of our products. For this reason, technical
data, equipment and design are subject to
change without notice. All specications, illustra-
tions and directions in this manual are based on
the latest product information available at the
time of publication.

TABLE OF CONTENTS
DCS-1600 1
Page Page
1 SERVICE INFORMATION ………………… 2
1-1 Specications ………………………………… 2
1-2 Technical data ………………………………… 3
1-3 Torque limits ………………………………… 3
1-4 Special repairing materials ………………… 3
1-5 Special tool …………………………………… 3
1-6 Wiring diagram ……………………………… 4
2 TROUBLESHOOTING ……………………… 5
2-1 Error indicator ………………………………… 5
2-2 Troubleshooting chart ……………………… 6
2-3 Diagnosis of abnormal condition ………… 17
3 CHAIN BRAKE SYSTEM ………………… 18
3-1 Inspecting brake switch …………………… 19
3-2 Replacing brake lever …………………… 20
3-3 Replacing chain brake parts ……………… 22
4 SAW CHAIN LUBRICATION SYSTEM … 23
4-1 Inspecting oil cap and strainer …………… 24
4-2 Inspecting oil line ………………………… 25
4-3 Inspecting and replacing worm gear …… 26
4-4 Replacing auto-oiler ……………………… 27
4-5 Seperating motor cover and replacing oil line29
5 SWITCH AND TRIGGER ………………… 30
5-1 Inspecting power switch and variable speed
switch ……………………………………… 31
5-2 Installing switches and trigger lever……… 34
6 MOTOR AND CONTROL SYSTEM …… 36
6-1 Inspecting motor and control board ……… 37
6-2 Installing motor and control board ……… 38
7 AIR FILTER ………………………………… 39
7-1 Cleaning and replacing air lter ………… 39
8 GUIDE BAR MOUNTING SYSTEM …… 40
8-1 Replacing nut for xing guide bar ……… 40
8-2 Assembling chain tensioner ……………… 41
8-3 Inspecting sprocket ……………………… 42
8-4 Replacing guide bar stud ………………… 42
9 BATTERY AND CHARGER ……………… 43
9-1 Battery LED indicator ……………………… 44
9-2 Charger LED indicator …………………… 44
9-3 Inspecting battery ………………………… 45
10 MAINTENANCE GUIDE ………………… 46
10-1 Disassembly chart ………………………… 46
10-2 Service intervals …………………………… 46

SERVICE INFORMATION
2DCS-1600
1 SERVICE INFORMATION
1-1 Specications
Dimensions* Length mm(in) 459 (18.1)
Width mm(in) 219 (8.6)
Height mm(in) 262 (10.3)
Dry weight** kg(lb) 3.1 (6.8)
Motor Type DC electric motor
Rotation Clockwise as viewed from the output end
Rated current A 42.5
Rated voltage V 50.4
Rated output kW 1.73
Li-Ion Battery Standard battery LBP-560-200 / LBP-50-250
Rated voltage V 50.4
Capacity LBP-560-200: 3.66 / 185
Ah / Wh LBP-50-250: 4.50 / 226
Weight kg(lb) 1.8 (4.0)
Battery charger Standard charger LCJQ-560 (RAPID CHARGER)
LCJU-560 (ULTRA RAPID CHARGER)
Input voltage V AC220-240
Rated output V 58.1
Guide bar / Saw chain lubrication type Automatic oil pump
Oil Tank capacity L (UK..oz.) 0.38 (13.4)
Auto oiler Type Motor driven type
Sprocket Type Spur
Number of teeth 6
Pitch 3/8
* Without guide bar and saw chain ** Without battery, guide bar and saw chain
Cuttingdevices
Guide bar Type C35S90-52SA
Called length cm 35
Gauge in 0.043
Saw chain Type OREGON 90PX
Number of drive links 52
Pitch in 3/8
Gauge in 0.043

SERVICE INFORMATION 3
DCS-1600
1-2 Technicaldata
1-3Torquelimits
Descriptions Size kgf•cm N•m lbf•in
Motor Motor assembly
(w/ Motor cover assembly)
M5 30 - 45 3 - 4.5 25 - 40
Others Cover M4 20 - 30 2 - 3 20 - 25
Stud bolt M8* 80 - 100 8 - 10 70 -87
Regular bolt, nut and screw M4 15 - 25 1.5 - 2.5 13 - 22
M5 25 - 45 2.5 - 4.5 22 - 40
*Apply thread locking sealant described in “1-4 Special repairing materials”
1-4 Specialrepairingmaterials
Material Location Remarks
Thread locking sealant Stud bolt Loctite #272 or equivalent
Grease Worm gear Lithium based grease
Chain brake (metal contact part) Molybdenum grease (approx. 1 gram)
1-5 Specialtool
Key Part Number Description Reference
1X602-000340 Torx wrench (T27) Removing and installing torx bolts
2Y089-000131 Auto-oiler puller Removing pencil type auto-oiler
391073A Auto-oiler installer Installing pencil type auto-oiler
1 2 3
Made in Germany
T27x200
4 0 1 0 5 5 7 8 6 9 7 4 5
a
a=5.0mm
Motor Speed at maximum power r/min 8,940
Speed control r/min Low (6,000 r/min) - High (10,000 r/min)
Battery Battery type: LBP-560-200 LBP-50-250
Charging time min. LCJQ-560: 45(80%) / 64(100%)
LCJU-560: 22(80%) / 39(100%)
LCJQ-560: 60(80%) / 89(100%)
LCJU-560: 30(80%) / 57(100%)
Operating time/one charge* min. 32 44
*It varies according to work.

SERVICE INFORMATION
4DCS-1600
1-6Wiringdiagram
+15V
GND
Hall sensor IC-A
Hall sensor IC-B
Hall sensor IC-C
Motor drive W
Motor drive V
Motor drive U
Motor
+15V
GND
Hall sensor IC-A
Hall sensor IC-B
Hall sensor IC-C
Motor drive W
Motor drive V
Motor drive U
1
2
3
4
5
5
4
3
2
1
3
2
1
3
2
1
Blue
White
Red
Red
Black
Yellow
White
Blue
Power supply
Identification of battery type
Sensor (Over discharge)
Sensor (Temperature)
GND
Brake signal 2
Brake signal 1
3
2
1
＋
S
D
T
D−
GND
Variable speed switch
+5V
Trigger signal
1
2
3
4
Battery
Brake switch
Control board
Variable speed switch
Power switch
GND
LED power supply (+5V)
LED (GND)
Sensor (Temperature)
Identification of battery type
Sensor (Over discharge)
Brake signal 2
Brake signal 1
Power supply
GND
GND
Variable speed switch
+5V
Trigger signal
Switch signal 1
Switch signal 2
LED power supply (+5V)
LED (GND)
1
2
3
4
5
6
8
7
6
5
4
3
2
1
Power switch
＋
S
D
T
−
1
2
3
4
1
2
3
4
5
6
8
7
6
5
4
3
2
1
Black
Blue
Red
Yellow
Yellow
Black
Red
Blue
Red
Black
Blue
White
Yellow
Black
White

TROUBLESHOOTING 5
DCS-1600
2 TROUBLESHOOTING
2-1 Error indicator
Power indicator LED on power switch ashes as shown when trouble occurs.(Refer to section 2-2)
LED indicator Cause How to recover
Flashing
4times per second
Unit and/or battery is/are too hot or
cold.
Warm or cool them to normal
temperature.
Chain brake is activated Release the chain brake.
Contact of power switch is defective.
(Refer to Troubleshooting STEP 5
described in Section 2-2)
Replace the power switch with new
one.
Contact or resistance of variable
speed switch is defective.
(Refer to Troubleshooting STEP 5
described in Section 2-2)
Replace the variable speed switch
with new one.
Motor sensor detects abnormality or
its defective.
(Refer to Troubleshooting STEP 5 and
STEP6 described in Section 2-2)
Repair or replace defective items as
needed.
Flashing
1 time per second
Battery capacity is too low. Charge the battery.
Battery is defective due to over-
discharging, degradation or sensor
failure.
(Refer to Troubleshooting STEP 4
described in Section 2-2)
Replace the battery with new one.
WARNING DANGER
Do not open, crush, heat above 60°C or incinerate batteries. Do not use damaged or deformed
batteries.Failuretofollowtheserulesmayresultinelectricshock,re,and/orseriouspersonal
injury.
LED indicator
Power switch
LED indicator
Power switch

TROUBLESHOOTING
6DCS-1600
2-2 Troubleshooting chart
Be sure to begin with “STEP0” when troubleshooting.
Start
Problem is resolved
A
B
C
D
E
F
No
Step1 & Step2
No
Step3
Yes
Step4
Yes
Step5
Yes
Step6
No
Step7
No
Yes
Yes
No
No
No
Yes
Troubleshooting"STEP0"
NOTE: Be sure to release chain brake.
A: Is battery fully charged?
B: Press power switch. Is LED indicator lighting or
ashing?
C: Press power switch. Is LED indicator flashing
1time per second?
D: Press power switch. Is LED indicator flashing
4time per second?
E: Press power switch and then hold trigger lever.
Is LED indicator ashing 4times per second?
F: Does unit run normally?

TROUBLESHOOTING 7
DCS-1600
2-2 Troubleshooting chart (Continued)
Troubleshooting"STEP1"~Checkingbatteryandcharger~
Start
A
D
B
E F
C
No
Yes
Yes No
No Yes
M
G
No
H
Yes
K
Yes
J
L
Yes
N
Yes
No
No
P
Yes
Q
R
Step0
No
Step2
Step2
No
A: Press battery buttton to indicate charging
status.
B: Is LED indicator of battery lighting?
C: Go to “Step 2” to find cause of battery failure.
After passing Step2 then replace the battery to
new one and continue to diagnosis. *
*Be sure to check Troubleshooting “Step2”
before installing new battery. If the unit has
something wrong, the battery can be damaged
again.
D: Charge the battery.
E: Is battery fully charged?
F: Does LED indicator of charger remain red?
G: Is LED indicator of charger ashing red?
H: Does LED indicator of charger light?
J: Prepare good battery and charger and then
cross-check.
K: Battery failure?
L: Go to “Step 2” to find cause of battery failure.
After passing Step2 then replace the battery to
new one and continue to diagnosis. *
*Be sure to check Troubleshooting “Step2”
before installing new battery. If the unit has
something wrong, the battery can be damaged
again.
M:
Is temperature of battery inside in the range of 5
to 40°C?
N: Cool or warm battery as needed.(Rechargeble
temperature of battery inside is 5 to 40°C.)
P: Are connectors of battery and charger dirty?
Q: Clean connectors of battery and charger.
R: Replace the charger with new one.

TROUBLESHOOTING
8DCS-1600
2-2 Troubleshooting chart (Continued)
Troubleshooting"STEP2"~Checkingunitincaseofbatteryfailure~
Start
AB
Yes
Yes
No
D
C
No
Yes F
E
No
Step0
A: Are there conductive substances (water, metal
pieces, etc.) on the surface of control board?
(Refer to Section 6-1)
B: Remove conductive substances (water, metal
pieces, etc.) on the surface of control board.
C: Is control board damaged? (Refer to Section
6-1)
D: Replace the control board with new one. (Refer
to Section 6-2)
E: Is control board short-circuited between battery
connection terminal (+) and (-)? (Refer to Sec-
tion 6-1)
F: Retighten the screw(s) on battery connection
terminal or replace with new control board. (Refer
to Section 6-2)

TROUBLESHOOTING 9
DCS-1600
2-2 Troubleshooting chart (Continued)
Troubleshooting"STEP3"~Checkingpowersupplycircuit~
WARNING DANGER
Verify the safety of the surroundings when
doingTroubleshootingSTEP3.Themachine
mayrununexpectedly.
Start
A
B
No
C
Yes
D
No
E
Yes
No
G
Yes
No
J
Yes
No
L
Yes
F
H
Yes
M
No
N
K
P
Step0
Step2
A: Install battery on the unit correctly.
B: Release chain brake and press power switch with-
out holding trigger lever.
C: Is LED indicator lighting or ashing?
D: Remove battery from the unit.
E: Is resistance between battery terminal (T) and (C-),
(T) and (D-) 20 kΩ or less when temperature of bat-
tery inside is 10°C or higher? (Refer to Section 9-4)
F: Go to “Step 2” to nd cause of battery failure. After
passing Step2 then replace the battery to new one
and continue to diagnosis. *
*Be sure to check Troubleshooting “Step2” before
installing new battery. If the unit has something
wrong, the battery can be damaged again.
G: Inspect the unit as follows:
1) Each connection between terminals is secure.
2) Each connection of terminal housing and lead is
secure.
3) Electrical current can ow through each lead.
H: Repair or replace defective objects as needed.
J: Inspect power switch as follows: (Refer to Section
5-1)
1) Electrical current can ow between terminal “1” and
“2” when pressing power switch.
2) Electrical current can not ow between terminal “1”
and “2” when not pressing power switch.
K: Replace the power switch with new one. (Refer to Section 2-2)
L: Does LED indicator of power switch light when electrical current ow between terminal “3” and “6” using
diode check function of degital multimeter? (Refer to Section 5-1)
M: Is there any short circuit in the following parts?
1) Between terminal “2” and “3” of power switch (Refer to Section 5-1)
2) Between terminal “1” and “3” of variable speed switch (Refer to Section 5-1)
3) Between terminal “4” and “5” of motor’s 5-pin connector (Refer to Section 6-1)
N: Repair or replace defective object(s) as needed.
P: Replace the control board with new one.(Refer to Section 6-2)

TROUBLESHOOTING
10 DCS-1600
2-2 Troubleshooting chart (Continued)
Troubleshooting"STEP4"~Checkingdegradationandoverdischargeofbattery~
Start
A
B
Yes
C
No
No
F
Yes
Yes
Yes
L
No
G
K
No
Yes
E
K
N
Step0
D
H
No
J
Yes
No
Step1
Step2
A: Install battery on the unit correctly.
B: Release chain brake and press power switch
without holding trigger lever.
C: Press power switch. Is LED indicator flashing
1time per second?
D: Inspect the unit as follows:
1) Each connection between terminals is secure.
2) Each connection of terminal housing and lead is
secure.
3) Electrical current can ow through each lead.
E: Repair or replace defective object(s) as needed.
F: Is voltage between battery terminal (+) and (D-)
55V or more? (Refer to Section 9-4)
G: Fully charge the battery.
H: Is voltage between battery terminal (+) and (D-)
55V or more? (Refer to Section 9-4)
J: Has Troubleshooting “Step 1” already been
done?
K: Go to “Step 2” to nd cause of battery failure.
After passing Step2 then replace the battery to
new one and continue to diagnosis. *.
*Be sure to check Troubleshooting “Step2”
before installing new battery. If the unit has
something wrong, the battery can be damaged
again.
L: Is resistance between battery terminal (D) and
(D-) 12.1 kΩ or more? (Refer to Section 9-4)
N: Replace the control board with new one. (Refer
to Section 6-2)

TROUBLESHOOTING 11
DCS-1600
2-2 Troubleshooting chart (Continued)
Troubleshooting"STEP5"~Checkingeachsensorandswitch~
WARNING DANGER
Verify the safety of the surroundings when
doingTroubleshootingSTEP5.Themachine
mayrununexpectedly.
Start
A
B
Yes
C
No
F
No
No
H
Yes
G
Yes
No
Yes
E
K
Step0
D
J
(8)
(9) A: Install battery on the unit correctly.
B: Release chain brake and press power switch
without holding trigger lever.
C: Press power switch. Is LED indicator flashing
4time per second?
D: Are battery and unit cold?
E: Warm the battery and the unit to normal tem-
perature.
F: Conduct diagnosis of abnormal condition.(Refer
to Section 2-3) Is LED indicator ashing or ligit-
ing?
G: Go to the next step according to the numbe of
continuously ashing of LED indicator.
2times: Go to page12 (1)
5times: Go to page12 (2)
7times: Go to page12 (3)
8times: Go to page13 (4)
9times: Go to page13 (4)
16times: Go to page13 (5)
17times: Go to page13 (6)
H: Inspect the unit as follows:
1) Each connection between terminals is secure.
2) Each connection of terminal housing and lead is
secure.
3) Electrical current can ow through each lead.
4) There are no any short curcuits.
5) There are not any conductive substances (water,
metal pieces, etc.) on the surface of control board.
J: Repair or replace defective object(s) as needed.
K: Control board or motor may be defective.Pre-
pare control board and motor and then cross-
check. Replace the defective one with new one.
From page 12 or 13
From page 12 or 13

TROUBLESHOOTING
12 DCS-1600
2-2 Troubleshooting chart (Continued)
Troubleshooting"STEP5"~Checkingeachsensorandswitch(Continued)~
(1)
No
Yes
A
Yes
No
D
B
C
E
(2)
Yes
No
FH
J
G
(3)
No
Yes
K
Yes
No
N
L
M
Q
PM
Inspecting temperature sensor of battery
Inspecting contact of power switch
Inspecting contact of variable speed switch
A: Is battery hot?.
B: Cool the battery to normal temperature.
C: Go to page 11 (9).
D: Is resistance between battery terminal (T) and (C-),
(T) and (D-) 20 kΩ or less when temperature of bat-
tery inside is 10°C or higher? (Refer to Section 9-3)
E: Go to page 11 (8).
F: Inspect power switch as follows: (Refer to Section
5-1)
1) Electrical current can ow between terminal “1” and “2”
when pressing the switch.
2) Electrical current can not flow between terminal “1”
and “2” when not pressing the switch.
G: Go to page 11 (8).
H: Replace the power switch with new one. (Refer to
Section 5-2)
J: Go to page 11 (9).
K: Is there any trouble in terminals and leads of vari-
able speed switch?
L: Repair or replace defective objects as needed.
(Refer to Section 5-2)
M: Go to page 11 (9).
N: Inspect variable speed switch as follows: (Refer to
Section 5-1)
1) Electrical current can ow between terminal “1” and
“4” when pressing the switch.
2) Electrical current can not ow between terminal “1”
and “4” when not pressing the switch.
P: Go to page 11 (8).
Q: Replace the variable speed switch with new one.
(Refer to Section 5-2).
From page 11
From page 11
From page 11

TROUBLESHOOTING 13
DCS-1600
2-2 Troubleshooting chart (Continued)
Troubleshooting"STEP5"~Checkingeachsensorandswitch(Continued)~
(4)
Yes
No
AC
DB
(5)
No
Yes
E
No
Yes
H
F
G
K
L
(6)
No
Yes
MP
Q
N
J
A: Inspect resistance between terminal “1” and “2” of
variable speed switch as follows: (Refer to Section
5-1)
1) Its value is 100 Ω or less when pressing the switch
to the end.
2) Its value is between 70 kΩ and 130 kΩ when not
pressing the switch.
B: Go to page 11 (8).
C: Replace the variable speed switch with new one.
(Refer to Section 5-2)
D: Go to page 11 (9).
E: Is there any trouble in terminals and leads of mo-
tor’s 5-pole terminal ?(Refer to Section 6-1)
F: Repair or replace defective objects as needed.
(Refer to Section 6-2)
G: Go to page 11 (9).
H: Is resistance between terminal “4” and “5” of mo-
tor’s 5-pole terminal about 0Ω (short circuit) ?
(Refer to Section 6-1)
J: Go to page 11 (8).
K: Replace the motor with a new one. (Refer to Sec-
tion 6-2)
L: Go to page 11 (9)
M: Is control board hot?
N: Go to page 11 (8).
P: Cool the control board to normal temperature.
Q: Go to page 11 (9).
Inspecting variable resistance part
Inspecting hall effect sensor of motor
Inspecting temperature of control board

TROUBLESHOOTING
14 DCS-1600
2-2 Troubleshooting chart (Continued)
Troubleshooting"STEP6"~Checkingbrakeswitchandoverload~
Start
A
B
No
Yes
C
No
Yes
H
No
Yes
J
No
Yes
L
Yes
No
DE
Yes
No
Yes
No
F
G
K
M
FE
G
Step0
WARNING DANGER
Verify the safety of the surroundings when
doingTroubleshootingSTEP6.Themachine
mayrununexpectedly.
A: Install battery on the unit correctly.
B: Release chain brake and press power switch
without holding trigger lever. And then hold trigger
lever.
C: Motor does not run and LED indicator is ashing 4
times per second.
D: Inspect brake switch as follows: (Refer to Section
3-1)
1) Electrical current can ow between terminal “1” and
“2” when pressing brake switch.
2) Electrical current can not ow between terminal “1”
and “2” when not pressing brake switch.
E: Repair or replace defective object(s) as needed.
F: Inspect the unit as follows:
1) Each connection between terminals is secure.
2) Each connection of terminal housing and lead is
secure.
3) Electrical current can ow through each lead.
4) There are no short curcuits.
G: Control board or motor may be defective.Prepare
control board and motor, and then cross-check.Re-
place the defective one with new one.
H: Motor stops after running and LED indicator is
ashing 4times per second.
J: Conduct diagnosis of abnormal condition. Is LED indicator continuously ashing 2or 17 times?(Refer to Section 2-3)
K: Cool the unit.
L: Inspect the unit as follows:
1) Sprocket is clogged with saw dust or something.
2) Unsuitable saw chain or guide bar is used.
3) Saw chain tension is too tight.
4) There is trouble in drive system.
M: Clean, repair or replace the object(s) as needed.

TROUBLESHOOTING 15
DCS-1600
2-2 Troubleshooting chart (Continued)
Troubleshooting"STEP7"~Checkingotherfailure~
WARNING DANGER
Verify the safety of the surroundings when
doingTroubleshootingSTEP7.Themachine
mayrununexpectedly.
Start
A
B
Yes
C
No Yes
No E
D
Yes
No G
F
Yes
No
H
J
K
(11)
A: Install battery on the unit correctly.
B: Release chain brake and press power switch
without holding trigger lever. And then hold trigger
lever.
C: Motor does not run and LED indicator is lighting.
D: Inspect the unit as follows:
1) Each connection between terminals is secure.
2) Each connection of terminal housing and lead is
secure.
3) Electrical current can ow through each lead.
4) There areno short curcuits.
E: Repair or replace defective object(s) as needed.
F: Inspect variable speed switch as follows: (Refer to
Section 5-1)
1) Electrical current can ow between terminal “1” and
“4” when pressing the switch.
2) Electrical current can not ow between terminal “1”
and “4” when not pressing the switch.
G: Replace the variable speed switch with new one.
(Refer to Section 5-2).
H: Inspect resistance between terminal “1” and “2” of
variable speed switch as follows: (Refer to Section
5-1)
1) Its value is 100 Ω or less when pressing the switch.
2) Its value is between 70 kΩ and 130 kΩ when not
pressing the switch.
J: Replace control board with new one. (Refer to Section
6-2)
K: Go to page 16 (10).
From page 16

TROUBLESHOOTING
16 DCS-1600
2-2 Troubleshooting chart (Continued)
Troubleshooting"STEP7"~Checkingotherfailure(Continued)~
(10)
Yes
A
No No
Yes
BC
E
Yes
No
D
C
Yes
No
F
G
No
Yes
H
No
Yes
BC
J
Step0
K
From page 15
A: Motor speed can not be increased or is not stable.
B: Inspect the unit as follows:
1) Sprocket is clogged with saw dust or something.
2) Unsuitable saw chain or guide bar is used.
3) Saw chain tension is too tight.
4) There is trouble in drive system.
C: Clean, repair or replace the object(s) as needed.
D: Can variable speed switch be pushed to the end?
Check the position and the part itself. (Refer to
Section 5-2)
E: Repair or replace the variable speed switch as
needed.(Refer to Section 5-2)
F: Inspect the unit as follows:
1) Each connection between terminals is secure.
2) Each connection of terminal housing and lead is
secure.
3) Electrical current can ow through each lead.
4) There are no short curcuits.
G: Control board or motor may be defective. Prepare
control board and motor and then cross-check.Re-
place the defective one with new one.
H: Abnormal noise occurs when runnning.
J: Replace motor with new one.(Refer to Section 6-2)
K: Go to page 15 (11).

TROUBLESHOOTING 17
DCS-1600
2-3 Diagnosis of abnormal condition
DCS-1600 has a function that records abnormalities when they occur. It also diagnoses the type of abnor-
mality in the following procedure.
NOTE: Before you do this diagnosis, make a note the following.
1. Diagnose the failure by following Troubleshooting chart (Section 2-2) when the unit has trouble.
2. Conduct this diagnosis when Troubleshooting “STEP5” is done.
- Be sure to follow the diagnosis procedure, otherwise result is not displayed.
- DCS-1600 can only record limited type of abnormalities. DCS-1600 cannot diagnoses all types of abnor-
mality.
- Latest information about abnormalities is saved in control board and is displayed as the result.
- DCS-1600 will hold the latest data about abnormalities after the problem is resolved. The data is rewrit-
ten when the next recordable abnormality occurs.
[Diagnosisprocedure]
1. Install battery on the unit correctly.
2. Pull brake lever (A) to release chain brake.
3. Press power switch (B). LED indicator (C) on
power switch will ash 4 times per second when
trouble is still present.
4. Move brake lever (A) forward to activate chain
brake.
5. Hold lockout button (D) and trigger lever (E)
together.
6. About 10 seconds after lockout (D) and trigger le-
ver (E) are held, LED indicator (C) on power switch
will ash 1 time per second. Then count how many
times LED indicator (C) continuously ash 1 time
per second. When this ashing stops, LED indicator
(C) ashes 5 times per second. The number of con-
tinuously ashing 1 time per second shows result
of this diagnosis.
NOTE: While holding lockout button (D) and trigger
lever (E), this action can be repeated.
7. Return to Troubleshooting “STEP5” (Section
2-2) and continue Troubleshooting according to the
result above.
A
B
C
D
E
C

CHAIN BRAKE SYSTEM
18 DCS-1600
3 CHAIN BRAKE SYSTEM
(A) Brake lever
(B) Tapping bolt (M4)
(C) Washer
(D) Collar
(E) Tapping bolt (M5)
(F) Collar
(G) Torsion spring
(H) Brake switch
(J) Tapping bolt (M4)
(K) Brake cover
(L) Collar
(M) Brake connector
(N) Compression spring
(P) Spacer
(Q) Brake band
(R) Pin
A
B
C
D
EF
K
J
L
M
P
N
H
Q
R
G