Barreto 912HM Owner'S Manual Download Page 1

912 Owner’s Manual  

8/31/21  

Page 1 of 16 

 

 

 

 

 THE  

 
 
 
 
 

 

  

                            

MODEL 912HM 

               HYDRAULIC TRENCHER OWNER’S MANUAL 

 

 
 
 

CONGRATULATIONS!  

  

You are now the proud owner of the BARRETO trencher. The OPERATOR’S MANUAL is 
attached to the machine. Please study it and this manual to become familiar with the trencher, its 
characteristics, and 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 Hwy 203, La Grande, OR  97850 
(800) 525-7348    (541) 963-7348 
FAX (541) 963-6755 
E-Mail: 

[email protected]

 

Web Site: 

http://www.barretomfg.com

 

 
 
 
 

Machine Identification Record 

 

Machine model number  ________________________ 
 
Machine serial number   ________________________ 
 
Engine manufacturer      ________________________ 
 
Engine model number    ________________________ 
 
Engine serial number     ________________________ 

 

 

 

 

Summary of Contents for 912HM

Page 1: ...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 equipmen...

Page 2: ...PECIFICATIONS 13 TROUBLESHOOTING GUIDE 14 INDEX 16 TRENCHER DELIVERY AND ASSEMBLY INSTRUCTIONS Upon delivery check for freight damage and any missing items Report any damage immediately to the carrier...

Page 3: ...zerks on cylinder rod end and boom pivot should be greased daily Grease zerks on each side of the boom cylinder and on front wheel hub should be greased once a week Grease zerks on the wheel hubs and...

Page 4: ...uipment service requirements and to the Engine Manual for other engine service requirements While Flash Alert is active hold the tip of the RESET TOOL Key Kancel Wand against the meter as shown Within...

Page 5: ...season long term storage follow the SHUT DOWN PROCEDURE in the OPERATOR S MANUAL Do not touch the engine muffler or any of the hydraulic components until cool WARNING Muffler and engine get hot enoug...

Page 6: ...e original manufacturer and are not covered by the Barreto Equipment Warranty Wear parts such as dig chains dig teeth sprockets chain rollers bearings bushings etc are excluded unless it can be determ...

Page 7: ...end of the cable housing 2 Pull the clutch lever all the way up until it touches the handle bar grip With the lever pulled up again measure the distance from the pin of the lever to the cable housing...

Page 8: ...e If the machine creeps while the speed control is in neutral the speed cables will need adjustment Adjust the cables to bring the pump cable arm to the neutral position vertical when the speed contro...

Page 9: ...While holding clutch lever up push on the chain forward neutral reverse lever It should be at the end of its stroke thus not move down any more If the chain F N R lever can be pushed down more the val...

Page 10: ...912 Owner s Manual 8 31 21 Page 10 of 16 DAILY LUBRICATION REQUIREMENTS Be sure to grease all lubrication points as outlined on page 3 of this manual...

Page 11: ...912 Owner s Manual 8 31 21 Page 11 of 16 ELECTRICAL SCHEMATIC HONDA GX270...

Page 12: ...912 Owner s Manual 8 31 21 Page 12 of 16 HYDRAULIC SCHEMATIC...

Page 13: ...ngine Oil Capacity 0 63 quarts 60 liters Hour Meter Standard HYDRAULIC SYSTEM Reservoir Capacity 9 5 U S gallons 35 96 liters OPERATIONS Ground Drive Forward 132 feet per minute 40 23m min Digging Cha...

Page 14: ...dies and wheels and chain do not turn 1 Rocks or other obstructions stopping chain Reverse chain momentarily to free it from obstruction Raise boom and stop chain See if obstruction can be removed fro...

Page 15: ...on shaft Tighten setscrew on Pump Lever E Oil leaks in hydraulic system 1 Fittings are loose Tighten fittings on hoses and adapters 2 Worn or broken hoses Replace damaged hoses 3 Oil around chain moto...

Page 16: ...CTRICAL SCHEMATIC HONDA GX270 2 11 ENGINE 3 4 5 6 9 14 15 GREASE 3 10 HOUR METER 4 HYDRAULIC FILTER 3 6 HYDRAULIC FLUID 3 5 15 HYDRAULIC SCHEMATIC 2 12 MAINTENANCE 5 6 SAFETY DECALS 6 SIGHT GLASS 3 SP...

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