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10 Operation
MAN0155 (Rev. 2/16/2007)
OPERATION
The operator is responsible for the safe operation of
this stump grinder. The operator must be properly
trained. Operators should be familiar with the tractor,
stump grinder, and all safety practices before starting
operation. Read the safety rules and safety decals on
page 5 through page 9.
Do not allow bystanders in the area when oper-
ating, attaching, removing, assembling, or servic-
ing equipment.
Figure 1. 100 ft. Hazard Zone
Keep bystanders away from equipment.
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.
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.
Make sure spring-activated locking pin or collar
slides freely and is seated firmly in tractor PTO
spline groove.
Know your controls and how to stop engine and
attachment quickly in an emergency.
Operators must be instructed in and be capable
of the safe operation of the equipment, its attach-
ments, and all controls. Do not allow anyone to
operate this equipment without proper instructions.
Never allow children or untrained persons to
operate equipment.
Make sure attachment is properly secured,
adjusted, and in good operating condition.
Do not put digger into service unless all shields
and guards are in place and in good condition.
Replace if damaged.
Always wear relatively tight and belted clothing
to avoid getting caught in moving parts. Wear
sturdy, rough-soled work shoes and protective
equipment for eyes, hair, hands, hearing, and head;
and respirator or filter mask where appropriate.
TRACTOR STABILITY
A minimum 20% 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.
Figure 2. Tractor Stability
STUMP GRINDER PRE-OPERATION
NOTE: For operation of this stump grinder, references
to right, left, forward, and rearward directions are deter-
mined from the operator’s position in the tractor seat.
NOTICE
■ Gearbox does not contain oil. Fill before oper-
ating.
1. Fill gearbox with 6 pints of SAE 90 oil.
2. Grease both fittings on the swivel assembly as
shown in Figure 4.
3. Grease U-joints on end of driveline as shown.
CAUTION