HT25 - SERVICE
1
SERIAL NUMBER RECORD
SERVICE
SERIAL NUMBER RECORD
Record serial number and date of purchase in spaces provided.
Tractor serial number is located as shown.
Date of Manufacture:
Date of Purchase:
Tractor Serial Number:
Front Attachment Serial Number:
Engine Serial Number:
Trailer Serial Number:
2
HT25 - SERVICE
SUPPORT PROCEDURE
SUPPORT PROCEDURE
Notify your dealer immediately of any malfunction or failure of
Ditch Witch equipment.
Always give model, serial number, and approximate date of
equipment purchase. This information should be recorded and
placed on file by owner at time of purchase.
Return damaged parts to dealer for inspection and Warranty
consideration.
Order genuine Ditch Witch replacement or repair parts from your
authorized Ditch Witch dealer. Use of another manufacturer's
parts may void warranty.
RESOURCES
Publications
Contact your Ditch Witch dealer for publications covering
operation, service, and repair of your equipment.
Ditch Witch Training
Fo r inf ormati on about on-s ite, indivi duali z ed tr ainin g, conta ct y our
Ditch Witch dealer.
HT25 - FOREWORD
3
FOREWORD
This manual is an important part of your equipment. It provides
safety information and operation instructions to help you use and
maintain your Ditch Witch equipment.
Read this manual before using your equipment. Keep it with the
equipment 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 Wor ks, Inc.
Attn: Marketing Department
PO Box 66
Perry, OK 73077-0066
USA
The descript ion s and sp eci fi ca tions in this manual are subject to
change. The Charles Machine Works, Inc. reserves the right to
improve equipment. Some product improvements may hav e taken
place after this manual was published. For the latest information
on Ditch Witch equipment, see your Ditch Witch dealer.
Thank you for buying and using Ditch Witch equipment.
4
HT25 - FOREWORD
Operator's Manual
Issue Number 1.0/OP-4/00
Part Number 054-062
Copyright 2000
by The Charles Machine Works, Inc.,
Perry, Oklahoma
, Ditch Witch, Jet Trac, Pro Tech, Fluid Miser, P erma-Soil,
Modularmatic, Roto Witch, AutoCrowd, and Subsite are
registered trademarks of The Charles Machine Works, Inc.
CMW is a trademark of The Charles Machine Works, Inc.
Pierce Airrow is a registered trademark of Oklahoma Airrow, Inc.
HT25 - CONTENTS
5
CONTENTS
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Serial Number Record. . . . . . . . . . . . . . . . . . . . . . . . . . 1
Support Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
FOREWORD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
OVERVIEW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Underground Hazards. . . . . . . . . . . . . . . . . . . . . . . . .20
Emergency Procedures. . . . . . . . . . . . . . . . . . . . . . . . 21
Jobsite Classification. . . . . . . . . . . . . . . . . . . . . . . . . . 24
Safety Alert Classifications . . . . . . . . . . . . . . . . . . . . .28
Safety Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
6
HT25 - CONTENTS
TRACTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Daily Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
TRANSPORTATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Tiedown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Haul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Tow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
TRENCHING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Control Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Control Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . 46
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Operating Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Optional Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . 51
BACKHOE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Control Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Control Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . 54
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
HT25 - CONTENTS
7
LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Engine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Ground Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
Hydraulics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
Trencher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
Backfill Blade. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
Engine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
Ground Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
Hydraulics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Trencher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
HT25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
A225 Backhoe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
8
HT25 - CONTENTS
HT25 - OVERVIEW
9
OVERVIEW
The HT25 is a 25 hp (18.6 kW) riding tractor that can be fitted
with a centerline, wide centerline, or offset digging boom.
Optional cab, backfill blade, backhoe, drilling attachment, and
mechanical trench cleaner are available. The HT25 is designed to
cut trenches up to 36 in (91 cm) deep and 16 in (40 cm) wide.
1. Digging boom
2. Lift/tiedown point
3. Engine compartment
4. Rollover Protective Structure
5. Operator’s position
6. Control console
7. Lift/tiedown point
8. Backfill blade*
*optional
10
HT25 - OVERVIEW
HT25 - CONTROLS
11
OVERVIEW
CONTROLS
OVERVIEW
1. Throttle
2. Accessory socket*
3. Backfill blade control*
4. Dome light switch*
5. Windshield wiper switch*
6. Work light switch*
7. Track controls
8. Horn button
9. Digging chain control**
10. Glow plug control
11. Ignition switch
12. Fuel gauge
13. Start interlock indicators
14. Engine water temperature
indicator
15. Engine oil pressure indicator
16. Heater fan control*
17. Heater temperature control*
18. Boom lift control**
19. Battery disconnect*
20. Hourmeter
* Optional
**See
TRENCHING
for a description of
this control.
12
HT25 - CONTROLS
DESCRIPTIONS
DESCRIPTIONS
Throttle
This lever controls engine speed.
• Push to increase speed.
• Pull to reduce speed.
Accessory Socket
This optional outlet can be used to
provide power for work lights or other
equipment.
ic0128h.eps
HT25 - CONTROLS
13
DESCRIPTIONS
Backfill Blade Control
This optional lever raises, lowers,
and swings backfill blade.
• Push to lower blade.
• Pull to raise blade.
• Move right to swing blade
right.
• Move left to swing blade left.
Work Light Switch
This optional switch controls front
and rear work lights.
• Press right to turn on.
• Press left to turn off.
Dome Light Switch
This optional button controls interior dome light.
• Press top to turn on.
• Press bottom to turn off.
14
HT25 - CONTROLS
DESCRIPTIONS
Windshield Wiper Switch
This option al swit ch controls
windshield wipers.
• Press right to turn on.
• Press left to turn off.
Track Controls
These levers, used together,
control left and right track speed
and direction.
• Push to go forward.
• Pull to go backward.
• Return to neutral to stop.
• Use together to steer.
Engine Oil Pressure Indicator
This indicator lights when oil
pressure is low. Light will come on
briefly when engine is started.
If light remains on:
• Turn off engine.
• Check oil level.
• Check for leaks before starting
engine.
Ic0225h.eps
Ic0227h.eps
ic1294.eps
HT25 - CONTROLS
15
DESCRIPTIONS
Start Interlock Indicators
To start machine, these must be lit,
indicating the following conditions
have been met:
• Operator is in seat.
• Track controls are in neutral.
• Digging chain clutch is not
engaged.
Horn Button
Press button to sound horn.
ic0138x.eps
16
HT25 - CONTROLS
DESCRIPTIONS
Glow Plug Button
This button helps start cold engine.
To operate, first turn ignition switch to
first position.
• If ambient temperature is below
40° F (4° C), press and hold
button for 15 seconds.
• If ambient temperature is below
20° F (-7° C), press and hold
button for 30 seconds.
Release button, then turn ignition switch all the way clockwise.
Ignition Switch
This three-position switch starts or
stops engine.
• Insert key and turn clockwise to
first position.
• Press glow plug button to warm
cold engine if necessary. See
instructions for glow plug
button.
• Turn switch all the way
clockwise.
• Release when engine starts. Key will return to first position.
• Turn counterclockwise to stop engine.
If engine does not start on first attempt, check that all interlock
requirements have been met, return switch to STOP position, and
try agai n.
ic0219h.eps
HT25 - CONTROLS
17
DESCRIPTIONS
Fuel Gauge
This gauge indicates fuel level in
tank. Use only #2 diesel fuel.
Engine Temperature Indicator
This indica tor lights if cooling
system water overheats.
• Turn off engine and let cool.
• Check cooling system fluid
level.
Heater Fan Control
This optional knob adjusts heater
fan speed.
• Turn clockwise for faster.
• Turn counterclockwise for
slower.
ic1274.eps
18
HT25 - CONTROLS
DESCRIPTIONS
Heater Temperature Control
This optional knob adjusts heater
temperature.
• Turn clockwise for warmer.
• Turn counterclockwise for
cooler.
Hourmeter
This gauge, located under seat,
records engine operating time.
Use these times to schedule
lubrication and maintenance.
Battery Disconnect
Use this optional knob, located
under seat, to disconnect battery
when servicing unit or during longterm storage.
• Turn clockwise to connect
batter y power.
• Turn counterclockwise to
disconnect battery power.
HT25 - SAFETY
19
SAFETY
Follow these guidelines before operating any jobsite equipment:
• Complete proper training and read operator’s manual before
using equipment.
• Contact One-Call (888-258-0808) and any utility companies
which do not subscribe to One-Call. Have all underground
pipes and cables located and marked before operating
equipment. If you damage a utility, contact utility company.
• Classify jobsite based on its hazards and use correct tools
and machinery, 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
dealer.
• Replace missing or damaged safety shields and safety signs.
• Use equipment carefully. Stop operation and investigate
anything that does not look or feel right.
• Do not operate unit where flammable gas is present.
• Contact your Ditch Witch dealer if you have any question
about operation, maintenance, or equipment use.
20
HT25 - SAFETY
ACCESSORIES
ACCESSORIES
Fire Extinguisher
If required, a fire extinguisher should be mounted near the power
unit but away from possible points of ignition. The fire
extinguisher should always be classified for both oil and electric
fires. It should meet legal and regulatory requirements.
Lighting Kit
If you need additional light, plug lighting kit into provided outlet.
Contact your Ditch Witch dealer for further information.
UNDERGROUND HAZARDS
Striking underground hazards can cause explosion, electrocution,
fire, and exposure to hazardous materials.
Hazards include:
• Electric lines
• Natural gas lines
• Fiber optic cables
• Water lines
• Sewer lines
• Pipes carrying other chemicals, liquids, or gases
• Storage tanks
HT25 - SAFETY
21
EMERGENCY PROCEDURES
EMERGENCY PROCEDURES
Before operating any equipment, review emergency procedures
and check that all safety precautions have been taken.
EMERGENCY SHUTDOWN
- Turn ignition switch to stop position
or push remote engine stop button.
Electric Strike Description
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. Almost one-third of
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.
22
HT25 - SAFETY
EMERGENCY PROCEDURES
If an Electric Line is Damaged
On Tractor
1. DO NOT MOVE. Remain on tractor.
2. Warn people nearby that an electric strike has occurred.
Instruct them to leave the area and contact utility.
3. Raise attachments and drive from immediate area.
4. Contact utility company to shut off power.
5. Do not return to area or allow anyone into area until given
permission by utility company.
Off Tractor
1. DO NOT TOUCH ANY EQUIPMENT.
2. LEAVE AREA.
3. Contact utility company to shut off power.
4. Do not return to area or allow anyone into area until given
permission by utility company.
HT25 - SAFETY
23
EMERGENCY PROCEDURES
If a Gas Line is Damaged
1. Immediately shut off engine(s) and remove any ignition
sources.
2. LEAVE AREA as quickly as possible.
3. Warn others that a gas line has been cut and that they should
leave area.
4. Contact emergency personnel.
5. Contact utility company.
6. Do not return to area until given permission by uti li ty
company.
If a Fiber Optic Cable is Damaged
Do not look into cut ends of fiber optic or unidentified cable.
Vision damage can occur.
24
HT25 - SAFETY
JOBSITE CLASSIFICATION
JOBSITE CLASSIFICATION
Inspecting Jobsite
• Follow U.S. Department of Labor regulations on excavating
and trenching (Part 1926, Subpart P) and other similar
regulations.
• Contact One-Call (888-258-0808) and any utility companies
which do not subscribe to One-Call.
• Inspect jobsite and perimeter for evidence of underground
hazards, such as:
– “Buried utility” notices
– Utility facilities without overhead lines
– Gas or water meters
– Junction boxes
– Drop boxes
– Light poles
– Manhole covers
– Sunken ground
• Have an experienced locating equipment operator sweep
area within 20 feet (6 m) to each side of trench path. Verify
previously marked line and cable locations.
• Mark location of all buried utilities and obstructions.
• Classify jobsite.
HT25 - SAFETY
25
JOBSITE CLASSIFICATION
Selecting a Classification
Jobsites are classified according to underground hazards
present.
NOTICE:
If you have any doubt about jobsite classification, or if
jobsite might contain unmarked hazards, take steps outlined
previously to identify hazards and classify jobsite before working.
If working . . . then classify jobsite as . . .
within 10 ft (3 m) of a buried
electric line
electric
within 10 ft (3 m) of a natural
gas line
natural gas
in sand or granite which is
capable of producing
crystalline silica (quartz) dust
crystalline silica (quartz) dust
within 10 ft (3 m) of any other
hazard
other
26
HT25 - SAFETY
JOBSITE CLASSIFICATION
Applying Precautions
Once classified, precautions appropriate for jobsite must be
taken.
Electric Jobsite Precautions
Use one or both of these methods.
• Expose line by careful hand digging or soft excavation.
• Have service shut down while work is in progress. Have
electric company test lines before returning them to service.
Natural Gas Jobsite Precautions
In addition to positioning equipment upwind from gas lines, use
one or both of these methods.
• Expose lines by careful hand digging or soft excavation.
• Have gas shut off while work is in progress. Have gas
company test lines before returning them to service.
HT25 - SAFETY
27
JOBSITE CLASSIFICATION
Crystalline Silica (Quartz) Dust
Follow these guidelines when trenching, sawing or drilling
through material that might produce dust containing crystalline
silica (quartz) dust.
1. Know the work operations where exposure to crystalline silica
may occur. Be aware of health effects of crystallline silica and
that smoking adds to the damage.
2. Follow OSHA (or other) guidelines for exposure to airborne
crystalline silica. Participate in air monitoring or training
programs offered by employer.
3. Be aware of and use available engineering controls such as
water sprays, local exhaust ventilation, and enclosed cabs
with positive pressure air conditioning.
4. Where respirators are required, wear one approved for
protection against crystalline silica-containing dust. Do not
alter respirator in any way. Workers using tight-fitting
respirators cannot have beards/mustaches which interfere
with respirator’s seal to the face.
5. If possible, change into disposable or washable work clothes
at jobsite; shower and change into clean clothing before
leaving jobsite.
6. Do not eat, drink, use tobacco products, or apply cosmetics in
areas where there is dust containing crystalline silica. Wash
hands and face before eating, drinking, smoking, or applying
cosmetics outside exposure area.
7. Store food, drink, and personal belongings away from work
area.
Other Jobsite Precautions
You may need to use different methods to safely avoid other
underground hazards. Talk with those responsible for hazards to
determine which precautions should be taken or if job should be
attempted.
28
HT25 - SAFETY
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 an immin entl y hazar do us situa tio n
which, if not avoided, will result in death or serious injury.
indicates a potentially hazardous situation which,
if not avoided, could result in death or serious injury.
indicates a potentially hazardous situation which,
if not avoided, may result in minor or moderate injury.
Watch for two other words:
NOTICE
and
IMPORTANT
.
NOTICE
can keep you from doing something that might damage
the machine or someone's property. It can also alert you against
unsafe practices.
IMPORTANT
can help you do a better job or make your job
easier in some way.
HT25 - SAFETY
29
SAFETY ALERTS
SAFETY ALERTS
Moving digging
teeth will kill you or cut off arm or
leg. Stay away.
Turning shaft will kill you or crush
arm or leg. Stay away.
Electric shock. Contacting electric
lines will cause death or serious injury. Know
location of lines and stay away.
Deadly gases. Lack of oxygen or
presence of gas will cause sickness or death.
Provide ventilation.
30
HT25 - SAFETY
SAFETY ALER TS
Jobsite hazards
could cause death or serious injury.
Use correct equipment and work
methods. Use and maintain proper
safety equipment.
Crushing weight
could cause death or serious injury .
Use proper procedures and
equipment or stay away.
Moving parts
could cut off hand or foot. Stay
away.
Rollover possible. If machine rolls
over, you could be thrown from seat and killed or
crushed. Wear seat belt.
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