OPERATION
The operator is responsible for the safe operation of the backhoe. The operator must be properly trained. Operators should be familiar with the backhoe, the tractor, and all safety practices before starting opera- tion. Read the safety rules and safety decals on page 7 to page 11.
Hydraulic pressure for backhoe operation is supplied by a tractor PTO driven pump. Two pumps are avail- able to operate at either 540 or 1000 rpm. Make sure you have the proper pump for your tractor rpm. Never exceed the rated pump rpm. Operating the pump in excess of the rated rpm will cause overheating and damage to the equipment.
Never put backhoeinto service unless backhoe manufacturer's
Do not operate backhoe unless there is ade- quate operator clearance as shown on safety decal. (Refer to Danger decal in Safety Decal sec- tion.)
Make sure all hydraulic hoses, fittings, and valves are in good condition and not leaking before starting power unit or using equipment. Check and route hoses carefully to prevent damage. Hoses must not be twisted, bent sharply, kinked, frayed, pinched, or come into contact with any moving parts. Operate moveable components through full operational range to check clearances. Replace any damaged hoses immediately.
Make sure that all operating and service person- nel know that if hydraulic fluid penetrates skin, it must be surgically removed as soon as possible by a doctor familiar with this form of injury or gan- grene, serious injury, or death will result. CON-
TACT A PHYSICIAN IMMEDIATELY IF FLUID ENTERS SKIN OR EYES. DO NOT DELAY.
Keep hands and body away from pressurized lines. Use paper or cardboard, not hands or other body parts to check for leaks. Wear safety goggles. Hydraulic fluid under pressure can easily penetrate skin and will cause serious injury or death.
Consult local utilities before working. Know location of all underground cables, pipelines, over- head wires, and other hazards in working area and avoid contact.
A minimum 20% of tractor and equipment weight must be on tractor front wheels with back-
hoe in transport position. Without this weight, trac- tor could tip over, causingpersonal injury or death.
The weight may be attained with a loader, front wheel weights, ballast in tires, or front tractor weights. When attaining the minimum 20% weight on the front wheels, you must not exceed the Roll Over Protection Structure (ROPS) weight certifica- tion. Weigh the tractor and equipment. Do not esti- mate.
Start and Stop Operation
Operate tractor PTO at 540 RPM. Do not exceed.
Power for operating backhoe hydraulic system is sup- plied by a hydraulic pump driven by the tractor PTO. Instructions for engagingand disengaging the PTO are in your tractor manual. Learn how to disengage PTO quickly should an emergency occur.
Never exceed the rated pump rpm. Operating the pump in excess of the rated rpm will cause overheating and equipment damage.
GENERAL OPERATION
Place and keep
If tractor is equipped with draft sensing control, set control to “HEAVY” (minimum sensitivity) posi- tion.
Do not use backhoe for craning; it is primarily designed for digging. Mechanical failures such as hose rupture will cause a load to drop suddenly.
Never allow children or untrained persons to operate equipment.
CAUTION
When operating controls, always sit in backhoe seat.
Mechanical failures such as a hose rupture will cause a load to drop. Lifting a heavy load with the dipper, then operating the boom, could cause boom to drop. In either case, if anyone is in the operating area (maxi- mum reach of bucket) as shown in Figure 3, serious injury or death could occur.
Do not dig with backhoe unless stabilizers are down and on a firm surface. Stay clear of steep areas or excavation banks that are soft or could give way.
12 Operation | 51861 (Rev. 6/16/2006) |
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