Barreto 712MT Owner's Manual
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Barreto 712MT Owner's Manual

Hydraulic micro trencher
Source: barretomfg.com
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CONGRATULATIONS!
You are now the proud owner of a BARRETO trencher. The OPERATOR'S MANUAL is attached
to the machine. Please study both this manual and the operator's manual to become familiar with the
trencher, its characteristics and its method of operation. Pay particular attention to the safety and
operating instructions to prevent personal injury or equipment damage.
If you have any questions or need any replacement parts in the future, please contact us at your
convenience. Our toll-free phone number, fax and email are listed below.
Thank you for your patronage and confidence in BARRETO equipment.
Barreto Manufacturing, Inc.
Innovative Equipment Engineered to Last
66498 Highway 203
La Grande, OR 97850
1-800-525-7348
1-541-963-6755 Fax
E-Mail:
info@barretomfg.com
Web Site:
http://www.barretomfg.com
Machine Identification Record
Machine model number
Machine serial number
Engine manufacturer
Engine model number
Engine serial number
712MT OWNER'S MANUAL
MODEL 712MT
HYDRAULIC MICRO TRENCHER
OWNER'S MANUAL
________________________
________________________
________________________
________________________
________________________
REVISED 3/4/22
THE
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Summary of Contents for Barreto 712MT

  • Page 1 OWNER’S MANUAL CONGRATULATIONS! You are now the proud owner of a BARRETO trencher. The OPERATOR’S MANUAL is attached to the machine. Please study both this manual and the operator’s manual to become familiar with the trencher, its characteristics and its method of operation. Pay particular attention to the safety and operating instructions to prevent personal injury or equipment damage.

  • Page 2: Table Of Contents

    Hour Meter ........................... 4 Intended Use ..........................5 Lubrication Requirements ......................5 Chain Installation .......................... 6 Operator Training ......................... 6 Warranty of Barreto Equipment ....................7 Maintenance Preparation ......................7 Routine Maintenance ........................8 Electrical Schematic - Honda GX200 ..................Hydraulic Schematic ........................

  • Page 3: Assembly Instructions

    Upon delivery, check for freight damage and/or missing items. Report any damage immediately to the carrier and Barreto Manufacturing. Remove trencher from shipping crate. When documentation refers to “right side” or “left side”, it is relative to the operator’s position with both hands on the handlebars.

  • Page 4: Hour Meter

    If the wand gets lost, a small mechanic’s pick-up magnet will work. Refer to this manual for equipment service requirements and to the Engine Manual for engine service requirements. RESET TOOL 712MT OWNER’S MANUAL REVISED 3/4/22 Page 4 of 15...

  • Page 5: Intended Use

    LUBRICATION REQUIREMENTS Grease at the intervals indicated per the illustration of grease lubrication points. There is also a grease diagram decal on the machine. 712MT OWNER’S MANUAL REVISED 3/4/22 Page 5 of 15...

  • Page 6: Chain Installation

    • Shutting off gas while transporting. • Loading the trencher onto the trailer and securing it for road transport. • Unloading the trencher from the trailer. • Trenching procedure - Operation of the trencher. 712MT OWNER’S MANUAL REVISED 3/4/22 Page 6 of 15...

  • Page 7: Warranty Of Barreto Equipment

    Barreto Manufacturing, Inc. warrants all BARRETO equipment to be free of defects in material and workmanship for a period of one (1) year. All BARRETO fuel components, fuel tank, cap, lines & fittings are warranted for two (2) years. Warranty period begins on date of delivery to the original user.

  • Page 8: Routine Maintenance

    If you replace a machine part with one or more decals affixed to it, replace the decals as well. Replacement parts and decals can be purchased from Barreto Manufacturing, Inc. When attaching decals, the temperature of the mounting surface must be at least 40°F (5°C) and must be clean and dry.

  • Page 9: Electrical Schematic - Honda Gx200

    ELECTRICAL SCHEMATIC - HONDA GX200 712MT OWNER’S MANUAL REVISED 3/4/22 Page 9 of 15...

  • Page 10: Hydraulic Schematic

    HYDRAULIC SCHEMATIC 712MT OWNER’S MANUAL REVISED 3/4/22 Page 10 of 15...

  • Page 11: Wheel Drive Unloader Valve

    WHEEL DRIVE UNLOADER VALVE Wheel Drive Unloader Adjustment The 712MT is equipped with an unloader valve designed to control the wheel speed while the machine is trenching. This valve is located on the right hand side of the machine behind the engine.
  • Page 12 Check relief valve. It may need to be serviced or replaced. 2. Chain motor is worn. Rebuild or replace motor. New motors are available from Barreto Manufacturing. 3. Chain drive pump is worn. Replace pump. New pumps are available from Barreto Manufacturing.
  • Page 13 G. Boom does not lift, or does not lower into ground. 1. Rock or debris is jammed in lift Remove obstruction and inspect mechanism. machine for damage. 2. Boom pivot bushing seized. Disassemble, inspect, clean and replace parts as required. 712MT OWNER’S MANUAL REVISED 3/4/22 Page 13 of 15...

  • Page 14: Specifications

    BOOM / CHAIN OPTIONS 12” and 18” (30.48 cm and 45.72 cm) Depths Standard 3.5” (88.9 mm) Max. 4.5” (114.3 mm) Widths Chain Types Skip Cup, Double Cup Bolted Shark, Welded Shark Combo Shark 712MT OWNER’S MANUAL REVISED 3/4/22 Page 14 of 15...
  • Page 15 Oil Filter. See Filter Operator Training, 6 Service, 3 Specifications, 15 Starting, 3, 11 Trailer, 6 Transport, 6 Trencher Intended Use, 5 Trouble Shooting, 13 Unloader Valve Adjustment, 12 Warranty, 7 712MT OWNER’S MANUAL REVISED 3/4/22 Page 15 of 15...

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