Ditch Witch RT120 Manual de usuario

RT120
Operator’s
Manual
Issue 1.0
Original Translation
CMW®053-2697

RT120 Operator’s Manual Overview - 1
CMW
Overview
Chapter Contents
Serial Number Location . . . . . . . . . . . . . . . . . . . . . . 2
Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Equipment Modification . . . . . . . . . . . . . . . . . . . . . . 3
Unit Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operator Orientation. . . . . . . . . . . . . . . . . . . . . . . . . 5
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . 5
• Bulleted Lists. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
• Numbered Lists. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Overview - 2 RT120 Operator’s Manual
Serial Number Location
CMW
Serial Number Location
Record serial numbers and date of purchase in spaces provided. RT120 (1) and engine serial numbers (2)
are located as shown.
Date of manufacture
Date of purchase
RT120 serial number
Front attachment serial number
Rear attachment serial number
Trailer serial number
Engine serial number
t41om001w.eps
12

RT120 Operator’s Manual Overview - 3
Intended Use
CMW
Intended Use
The RT120 is a riding trencher designed to install buried service lines of various sizes using a variety of
Ditch Witch attachments.
This 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 dealer. Use in any other way is considered contrary to the intended use.
The RT120 should be used with genuine Ditch Witch chain, teeth, and sprockets. It should be operated,
serviced, and repaired only by persons familiar with their particular characteristics and acquainted with the
relevant safety procedures.
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.
The protection offered by the Rollover Protective System (ROPS) will be impaired if it has been subjected
to any modification, structural damage, or has been involved in an overturn accident. The ROPS must be
replaced after a roll-over.
Attachment Max. width/diameter Max. depth*
H910 trencher 24” (610 mm) 100” (2.5 m)
H911 trencher 24” (610 mm) 96” (2.4 m)
H932 plow 3” (80 mm) 36” (915 mm)
H952 combo
trencher 12” (305 mm) 70” (1.8 m)
plow 3” (76 mm) 36” (915 mm)
H1140 saw 6” (150 mm) 40” (1000 mm)
RC120 reel carrier
A920 backhoe 24” (610 mm) 109” (2.4 m)

Overview - 4 RT120 Operator’s Manual
Unit Components
CMW
Unit Components
1. Rollover Protective Structure (ROPS)
2. Operator station
3. Control console
4. Engine compartment
5. Backfill blade (optional)
WARNING: The protection offered by the Rollover Protective System (ROPS) will be impaired if it has
been subjected to any modification, structural damage, or has been involved in an overturn accident.
The ROPS must be replaced after a roll-over.
t41om002w.eps
1
23
4
5

RT120 Operator’s Manual Overview - 5
Operator Orientation
CMW
Operator Orientation
Right and left sides of machine are determined by
facing front of unit while seated at the controls.
About This Manual
This manual contains information for the proper use of this machine. See Operation Overview 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.
1. Front of unit
2. Right of unit
3. Rear of unit
4. Left of unit

Overview - 6 RT120 Operator’s Manual
About This Manual
CMW

RT120 Operator’s Manual Foreword - 7
CMW
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 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 published. For the latest information on Ditch Witch equipment, see your
Ditch Witch dealer.
Thank you for buying and using Ditch Witch equipment.

Foreword - 8 RT120 Operator’s Manual
CMW
RT120 Tier 4i
Operator’s Manual
Issue number 1.0/OM-09/13
Part number 053-2697
Copyright 2013
by The Charles Machine Works, Inc.
, Ditch Witch, CMW, and Roto Witch are registered trademarks of The Charles
Machine Works, Inc.

RT120 Operator’s Manual Contents - 9
CMW
Contents
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
1
Foreword
part number, revision level, and publication date of this manual, and factory contact
information
7
Safety
machine safety alerts and emergency procedures 11
Controls
machine controls, gauges, and indicators and how to use them 29
Operation Overview
an overview for completing a job with this machine: planning, setting up, installing
product, and restoring the jobsite; with cross references to detailed procedures
73
Prepare
procedures for inspecting and classifying the jobsite, planning the installation path,
and preparing the jobsite for work
77
Drive
procedures for startup, cold start, driving, and shutdown 83
Transport
procedures for lifting, hauling, and towing 89
Trench
procedures for trenching 101
Plow
procedures for plowing 109
Reel Carrier
procedures for using reel carrier 119
Backhoe
procedures for digging with backhoe 123
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