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12 Operation
MAN0450 (10/28/2005)
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 pages
7 to 11.
Never put backhoe into service unless backhoe
manufacturer's 3-point hitch Saf-T-Lok
®
limiter or
sub-frame has been installed and adjusted.
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 25% of tractor and equipment
weight must be on the tractor front wheels when
attachments are in transport position. Without this
weight, tractor could tip over, causing personal
injury or death. The weight may be attained with a
loader, front wheel weights, ballast in tires, or front
tractor weights. Weigh the tractor and equipment.
Do not estimate.
START AND STOP OPERATION
Operate tractor PTO at 540 RPM. Do not exceed.
An optional tractor-driven PTO pump supplies hydraulic
pressure for backhoe operation. Instructions for engag-
ing and disengaging the PTO are in your tractor man-
ual. Learn how to disengage PTO quickly should an
emergency occur.
Never exceed 540 rpm. Operating the pump in excess
of 540 rpm will cause overheating and equipment dam-
age.
GENERAL OPERATION
Place and keep 3-point lift quadrant lever in low-
ered position at all times.
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.
When operating controls, always sit in backhoe
seat.
Figure 1. Backhoe Swing Area.
CAUTION