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RG74DXH Parts Manual
Machine Description
Secure all loose items such as lunch boxes, tools, and other
items that are not a part of the equipment.
Know the appropriate work site hand signals and the personnel
that are authorized to give the hand signals. Accept hand
signals from one person only.
Do not smoke when you service an air conditioner. Also, do
not smoke if refrigerant gas may be present. Inhaling the fumes
that are released from a flame that contact air conditioner
refrigerant can cause bodily harm or death. Inhaling gas
from air conditioner refrigerant through a lighted cigarette
can cause bodily harm or death.
Never put maintenance fluids into glass containers. Drain
all liquids into a suitable container.
Obey all local regulations for the disposal of liquids.
Use all cleaning solutions with care. Report all necessary
repairs.
Do not allow unauthorized personnel on the equipment.
Unless you are instructed otherwise, perform maintenance
with the equipment in the servicing position.
Operation and Maintenance Manual for the procedure for
placing the equipment in the servicing position.
When you perform maintenance above ground level, use
appropriate devices such as ladders or man lift machines.
If equipped, use the machine anchorage points and use
approved fall arrest harnesses and lanyards.
Machine Description
The Rayco RG74DXH is a high-production stump cutter
powered by a massive 3.8L Cummins 74hp diesel engine that
generates peak torque of 295ft-lbs. The large displacement
diesel engine delivers more cutting power than most 100hp-
class stump cutters and meets Tier 4 Final emissions
without complex after-treatment systems. Compared to the
competition, the difference is clear.
• Cummins QSF3.8 diesel engine meets Tier 4 Final/
Stage IV emissions
• Does not require Diesel Exhaust Fluid (DEF)
• Does not utilize Diesel Particulate Filter (DPF)
• Large displacement engine produces 74hp / 295ft-
lbs torque
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