Ditch Witch SK850 User Manual
SK850
053-2790
Operator’s
Manual
CMW
®
Issue 1.0
Original Instruction
SK850 Operator’s Manual Overview - 1
Overview
Chapter Contents
Serial Number Location . . . . . . . . . . . . . . . . . . . . . . 2
Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Equipment Modification . . . . . . . . . . . . . . . . . . . . . . 3
Unit Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operator Orientation. . . . . . . . . . . . . . . . . . . . . . . . . 5
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . 6
• Bulleted Lists. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
• Numbered Lists. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
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Overview - 2 SK850 Operator’s Manual
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Serial Number Location
Serial Number Location
Record serial numbers and date of purchase in spaces provided. Unit serial number is located as shown.
CMW
Item
date of manufacture
date of purchase
unit serial number
engine serial number
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SK850 Operator’s Manual Overview - 3
Intended Use
Intended Use
The SK850 is a platform, rubber track min i skid steer unit designed for light-to medium-duty constr uction
work. The SK850 has a quick attach mount plate which makes it easy for an operator to connect different
attachments. The SK850 can be used as a dedicated footings trencher using the TR50 trenching
attachment. The unit is designed for operation in temperatures typically experienced in earth moving and
construction work environments. Provisions may be required to operate in extreme temperatures. Contact
your Ditch Witch
The SK850 should be operated, serviced, and repaired only by persons familiar with its particular
characteristics and acquainted with the relevant safety procedures.
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dealer. Use in any other way is considered contrary to the intended use.
Equipment Modification
This equipment was designed and built in accordance with applicable standards and regulations.
Modification of equipment could mean that it will no longer meet regulations and may not function properly
or in accordance with the operating instructions. Modification of equipment should only be made by
competent personnel possessing knowledge of applicable standards, regulations, equipment design
functionality/requirements and any required specialized testing.
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Overview - 4 SK850 Operator’s Manual
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Unit Components
Unit Components
1. Operator station
2. Tracks
3. Engine compartment
4. Lift arms
5. Mount plate
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CMW
SK850 Operator’s Manual Overview - 5
Operator Orientation
Operator Orientation
1
1. Front of unit
2. Right side of unit
3. Rear of unit
4. Left side of unit
4
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2
3
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Overview - 6 SK850 Operator’s Manual
About This Manual
About This Manual
This manual contains information for the proper use of this machine. See the beige Operation Overview
pages for basic operating procedures. Cross references such as “See page 50” will direct you to detailed
procedures.
Bulleted Lists
Bulleted lists provide helpful or important information or contain procedures that do not have to be
performed in a specific order.
Numbered Lists
Numbered lists contain illustration callouts or list steps that must be performed in order.
CMW
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SK850 Operator’s Manual Foreword - 7
Foreword
This manual is an important part of your equipment. It provides safety information and operation
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instructions to help you use and maintain your Ditch Witch
Read this manual before using your equipment. Keep it with the equipmen t at all times for future reference.
If you sell your equipment, be sure to give this manual to the new owner.
If you need a replacement copy, contact your Ditch Witch dealer. If you need assistance in locating a
dealer, visit our website at www.ditchwitch.com or write to the following address:
The Charles Machine Works, Inc.
Attn: Marketing Department
PO Box 66
Perry, OK 73077-0066
USA
The descriptions and specifications in this manual are subject to change without notice. The Charles
Machine Works, Inc. reserves the right to improve equipment. Some product improvements may have
taken place after this manual was publishe d. For the latest information on Ditch Witch equipment, see your
Ditch Witch dealer.
equipment.
Thank you for buying and using Ditch Witch equipment.
CMW
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Foreword - 8 SK850 Operator’s Manual
SK850
Operator’s Manual
Machine Works, Inc.
Issue number 1.0 / OM-10/14
Part number 053-2790
Copyright 2014
by The Charles Machine Works, Inc.
, Ditch Witch, CMW, and Roto Witch are registered trademarks of The Charles
CMW
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SK850 Operator’s Manual Contents - 9
Content s
Overview
machine serial number, information about the type of work this machine is designed
to perform, basic machine components, and how to use this manual
Foreword
part number, revision level, and publication date of this manual, and factory contact
information
Safety
machine safety alerts and emergency procedures
Controls
machine controls, gauges, and indicators and how to use them
Prepare
procedures for inspecting and classifying the jobsite, plan ning the installation p ath (if
needed), preparing the jobsite for work, and connecting attachments
Drive
procedures for startup, cold start, driving, and shutdown
Transport
procedures for lifting, hauling, and towing
1
7
11
21
39
49
53
Trench
procedures for trenching
Complete the Job
procedures for restoring the jobsite and rinsing and storing equipment
Service
service intervals and instructions for this machine including lubrication, replacement
of wear items, and basic maintenance
Specifications
machine specifications including weights, measurements, power ratings, and fluid
capacities
Support
the warranty policy for this machine, and procedures for obtaining warranty
consideration and training
61
65
67
97
101
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Contents - 10 SK850 Operator’s Manual
Service Record
a record of major service performed on the machine
105
CMW
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SK850 Operator’s Manual Safety - 11
Safety
Chapter Contents
Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Emergency Procedures . . . . . . . . . . . . . . . . . . . . . 13
• Electric Strike Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
• If an Electric Line is Damaged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
• If a Gas Line is Damaged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
• If a Fiber Optic Cable is Damaged . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
• If Machine Catches on Fire. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Safety Alert Classifications . . . . . . . . . . . . . . . . . . 17
Machine Safety Alerts. . . . . . . . . . . . . . . . . . . . . . . 18
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Safety - 12 SK850 Operator’s Manual
Guidelines
Guidelines
Follow these guidelines before operating any jobsite equipment:
• Complete proper training and read operator’s manual before using equipment.
• Contact your local One-Call (811 in USA) or the One-Call referral number (888-258-0808 in USA and
Canada) to have underground utilities located before digging. Also contact any utilities that do not
participate in the One-Call service. Mark proposed p ath with white paint prior to cont acting One- Call or
utilities.
• Classify jobsite based on its hazards and use cor rect tools and machin ery, safety equipment, and work
methods for jobsite.
• Mark jobsite clearly and keep spectators away.
• Wear personal protective equipment.
• Review jobsite hazards, safety and emergency procedures, and individual responsibilities with all
personnel before work begins. Safety videos are available from your Ditch Witch
ditchwitch.com/resources/safety .
• Replace missing or damaged safety shields and safety signs.
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dealer or at
• Use equipment carefully. Stop operation and investigate anything that does not look or feel right.
• Do not operate unit where flammable gas may be present.
• Contact your Ditch Witch dealer if you have any question about operation, ma intenance, or equipment
use.
• Complete the equipment checklist located at www.ditchwitch.com/resources/safety.
CMW
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SK850 Operator’s Manual Safety - 13
Emergency Procedures
Emergency Procedures
Jobsite hazards could cause death or serious injury. Use
correct equipment and work methods. Use and maintain proper safety
equipment.
Before operating any equipment, review emergency proc edures and check that all safety precau tions have
been taken.
EMERGENCY SHUTDOWN - Turn ignition switch to stop position or push remote e ngine stop button ( if
equipped).
Electric Strike Description
or serious injury. Know location of lines and stay away.
274-050
Electric shock. Contacting electric lines will cause death
When working near electric cables, remember the following:
• Electricity follows all paths to ground, not just path of least resistance.
• Pipes, hoses, and cables will conduct electricity back to all equipment.
• Low voltage current can injure or kill. Many work-related electrocutions result from contact with less
than 440 volts.
Most electric strikes are not noticeable, but indications of a strike include:
• power outage
•smoke
•explosion
• popping noises
• arcing electricity
If any of these occur, assume an electric strike has occurred.
CMW
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Safety - 14 SK850 Operator’s Manual
Emergency Procedures
If an Electric Line is Damaged
If you suspect an electric line has been damaged and you are on tractor, DO NOT MOVE. Remain on
tractor and take the following actions. The order and degree of action will depend upon the situation.
• Warn people nearby that an electric strike has occurred. Instruct them to leave the area and contact
utility.
• Raise attachments and drive from immediate area.
• Contact utility company to shut off power.
• Do not return to jobsite or allow anyone into area until given permission by utility company.
If you suspect an electric line has been damaged and you are off tractor, DO NOT TOUCH TRACTOR.
Take the following actions. The order and degree of action will depend upon the situation.
• LEAVE AREA. The ground surface may be electrified, so take small steps with feet close together to
reduce the hazard of being shocked from one foot to the other. For more information, contact your
Ditch Witch dealer.
• Contact utility company to shut off power.
• Do not return to jobsite or allow anyone into area until given permission by utility company.
CMW
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SK850 Operator’s Manual Safety - 15
Emergency Procedures
If a Gas Line is Damaged
Fire or explosion possible. Fumes could ignite and cause
burns. No smoking, no flame, no spark.
Explosion possible. Serious injury or equipment damage could occur.
Follow directions carefully.
If you suspect a gas line has been damaged, take the following actions. The order and degree of action will
depend on the situation.
• Immediately shut off engine(s), if this can be done safely and quickly.
• Remove any ignition source(s), if this can be done safely and quickly.
275-419 (2P)
• Warn others that a gas line has been cut and that they should leave the area.
• Leave jobsite as quickly as possible.
• Immediately call your local emergency phone number and utility company.
• If jobsite is along street, stop traffic from driving near jobsite.
• Do not return to jobsite until given permission by emergency personnel and utility company.
CMW
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Safety - 16 SK850 Operator’s Manual
Emergency Procedures
If a Fiber Optic Cable is Damaged
Do not look into cut ends of fiber optic or unidentified cable. Vision damage can occur. Contact utility
company.
If Machine Catches on Fire
Perform emergency shutdown procedure and then take the following actions. The order and degree of
action will depend on the situation.
• Immediately move battery disconnect switch (if equipped and accessible) to disconnect position.
• If fire is small and fire extinguisher is available, attempt to extinguish fire.
• If fire cannot be extinguished, leave area as quickly as possible and contact emergency personnel.
CMW
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SK850 Operator’s Manual Safety - 17
Safety Alert Classifications
Safety Alert Classifications
These classifications and the icons defined on the following pages work together to alert you to situations
which could be harmful to you, jobsite bystanders or your equipment. When you see these words and
icons in the book or on the machine, carefully read and follow all instructions. YOUR SAFETY IS AT
STAKE.
Watch for the three safety alert levels: DANGER, WARNING and CAUTION. Learn what each level
means.
indicates a hazardous situation that, if not avoided, will result in death or serious injury. This
signal word is to be limited to the most extreme situations.
indicates a hazardous situation that, if not avoided, could result in death or serious injury.
indicates a hazardous situation that, if not avoided, could result in minor or mo derate injury.
Watch for two other words: NOTICE and IMPORTANT.
NOTICE indicates information considered important, but not hazard-related (e.g., messages relating to
property damage).
IMPORTANT can help you do a better job or make your job easier in some way.
CMW
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Safety - 18 SK850 Operator’s Manual
Machine Safety Alerts
Machine Safety Alerts
1
2
3
CMW
Crushing weight. Place cylinder lock on extended
cylinder and secure.
273-413
Read operator’s manual. Know how to use all
controls. Your safety is at stake.
Lift point. See Tra nsport chapter for more information.
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273-475
274-442
SK850 Operator’s Manual Safety - 19
Machine Safety Alerts
Tiedown location. See Transport chapter for more information.
274-318
4
5
275-184
Crushing weight could cause death or serious
Moving parts could cut off hand or foot. Stay away.
6
injury. Stay away.
275-326
Hot parts may cause burns. Do not touch until cool
7
or wear gloves.
275-355 (2-P)
Fire or explosion possible. Do not use starter fluid.
8
273-459 (2P), 274-206 (2P), 700-206 (2P)
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Safety - 20 SK850 Operator’s Manual
Attachment Safety Alerts
Attachment Safety Alerts
TR50
1
CMW
6ft/2m
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cause you to fall. Stay away.
Moving digging teeth can kill. Trench cave-in can
275-097
SK850 Operator’s Manual Controls - 21
Controls
Chapter Contents
Gauges and Indicators. . . . . . . . . . . . . . . . . . . . . . 22
Graphic Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Service Interval Screen . . . . . . . . . . . . . . . . . . . . . 31
Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Engine Compartment . . . . . . . . . . . . . . . . . . . . . . . 37
Tool Carrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
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Controls - 22 SK850 Operator’s Manual
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1
3
2
4
Gauges and Indicators
Gauges and Indicators
1. Auxiliary outlet
2. Graphic display
3. Hydraulic fluid level sight glass
4. Fuel gauge
Item Description Notes
1. Auxiliary outlet To operate work lights or
other 12V devices, plug into
outlet.
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SK850 Operator’s Manual Controls - 23
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Gauges and Indicators
Item Description Notes
2. Graphic display See “Graphic Display” on
page 24.
3. Hydraulic fluid sight
glass
Shows level of hydraulic fluid
in tank. Maintain fluid at
halfway point on glass.
4. Fuel gauge Shows level of fuel in tank. NOTICE: Use low sulfur or ultra low
sulfur fuel only.
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Controls - 24 SK850 Operator’s Manual
STOP
125
15 20
10
RPMx100
25
305
230
32
190
150
110
F
70
0
30
0
0.0V
Tier4
0
35
100
75
50
25
0
Engine
START UP
Load
0%
HRS
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8
9
10
11
12131415161718
19
20
Graphic Display
Graphic Display
1. High exhaust temperature ind ica to r
2. Air filter restriction indicator
3. Hydraulic fluid temperature indicator
4. Engine over-temperature indica to r
5. Diagnostic message indicator
6. Glow plug indicator
7. DPF regeneration indicator
8. Engine coolant temperature indicator
9. DPF manual indicator
10. Hourmeter
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11. Engine speed setpoint increase button
12. Engine speed setpoint decrease button
13. Menu button
14. Engine speed (RPM)
15. Throttle system state indicator
16. Service reminders button
17. Engine RPM setpoint indicator
18. Tier 4 menu button
19. Electrical system voltage
20. Engine percent load gauge
SK850 Operator’s Manual Controls - 25
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Graphic Display
Item Description Notes
1. High exhaust
temperature indicator
2. Air filter restriction
indicator
3. Hydraulic fluid
temperature indicator
Indicates high exhaust
temperature.
Indicator will begin flashing
once the air filter is 25%
unrestricted. Percentage will
decrease as air filter
becomes more restricted.
For best results, replace filter
between 25% and 0%. Reset
after replacing air filter.
Lights and alarm sounds
when hydraulic fluid is
overheating.
IMPORTANT: Will light when DPF
regeneration is occurring.
T o view the air filter percentage before
25% unrestricted, press the
diagnostics menu button at any time.
Check hydraulic fluid level.
Reduce load.
4. Engine overtemperature indicator
Flashes when temperature
rises above 230°F (110°C).
Ensure oil cooler is clean.
IMPORTANT: If temperature goes
above 230°F (110°C):
1. Stop operation, set throttle to low
idle, and allow engine to cool.
2. Stop engine.
3. Check coolant level.
4. Ensure radiator is clean.
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Controls - 26 SK850 Operator’s Manual
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Graphic Display
Item Description Notes
5. Diagnostic message
indicator
Appears when there is a
diagnostic trouble code.
This indicates a warning
code.
This indicates a stop code.
6. Glow plug indicator Lights when ignition switch is
on and glow plug button is
pressed.
7. DPF regeneration
indicator
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CMW
Will flash if regeneration is
needed but has not occurred
yet.
Will light if regeneration is
occurring.
SK850 Operator’s Manual Controls - 27
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HRS
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Graphic Display
Item Description Notes
8. Engine coolant
temperature indicator
9. DPF manual indicator Will light when DPF
10. Hourmeter Displays engine operating
Displays coolant temperature. IMPORTANT: If temperature goes
regeneration has been
manually delayed.
time.
above 230°F (110°C):
1. Stop operation, set throttle to low
idle, and allow engine to cool.
2. Stop engine.
3. Check coolant level.
4. Ensure radiator is clean.
Use these times to schedule service.
11. Engine speed increase
button
To increase engine speed,
push.
IMPORTANT:
• Increasing engine speed also
increases attachment speed.
• Each button press increases
engine by 360 rpm.
• Press and hold the increase
button to automatically set engine
speed to high (3000 rpm).
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Controls - 28 SK850 Operator’s Manual
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STARTUP
AUTO
Graphic Display
Item Description Notes
12. E n gi n e sp e ed de cre as e
button
To decrease engine speed,
push.
13. Menu button Press to go to the menu
screen.
14. En gi n e sp e ed (RPM ) Displays engine RPM.
IMPORTANT: Each button press
decreases engine by 360 rpm.
15. Throttle system state
indicator
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CMW
Displays one of the three
states of the throttle system.
• Startup indicates the system is
controlling its own throttle during
startup conditions.
• Auto indicates that the autothrottle system is active and
controlling engine throttle based
on the user’s selected rpm
setpoint. To enable auto-throttle,
go to the settings menu.
• No indication means that the rpm
setting is under manual control.
SK850 Operator’s Manual Controls - 29
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Tier 4
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Graphic Display
Item Description Notes
16. Service reminders
button
17. E n gi ne RPM setpoint
indicator
18. Tier 4 menu button Press to go to the DPF
Press to go to the service
reminders screen.
Indicates the current throttle
setpoint.
control menu.
IMPORTANT:
• When in manual throttle mode,
this is the RPM the engine will try
to maintain.
• When in auto-throttle mode, this
indicates the full throttle setpoint.
19. Electrical system
voltage
Displays system voltage. Should show 12-14V with engine
running.
CMW
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