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Great Plains
| 166-207M | 02/26/2019
110
NTA907HD and NTA3007HD
Maintenance and Lubrication
3.
Protect the team
Obtain the necessary safety equipment specified for
confined space exposure to those materials, paying
particular attention to harness/line, respiratory
support and protection. This may include
contaminant detection equipment and positive
ventilation to refresh air in the hopper.
4.
Equip the team
At least one attendant must be equipped with
communications capability, to summon outside aid in
the event that the hopper worker is overcome. Equip
the entrant with a safety harness and safety line.
5.
Train the team
Review the hazards. Review the procedures.
Understand the use of the protective equipment.
Know the steps to take in emergencies. Practice
them. Train the observer to summon aid, and not
attempt hopper entry if the entrant is overcome.
6.
Secure the drill
Block the drill wheels to prevent movement.
7.
Disrupt crusting or bridging
From outside the hopper, break up any hard
surfacing on top of the material, or forming layers
within the material. Such layers are extremely
dangerous to stand on.
8.
Empty the hopper
Follow the steps at “
64. If a blockage makes this impossible, use an
external pump line to remove as much material as
possible without performing a hopper entry. Pump
until at least some material is exiting the clean-out
door. Leave the clean-out door open.
9.
Clean the hopper
From the outside at the walkboard, power-wash the
inside of the hopper. Use a mild detergent sprayer.
Rinse thoroughly.
10.
Air the hopper
Leave the hopper lid and clean-out door open, and
do not commence work until the rinse water has
completely evaporated.
11.
Plan the work. Work the plan.
Postpone the work if any team members, equipment
or other resources are missing, or weather/lighting
conditions are not favorable. Terminate and evacuate
if any unexpected situations arise.
Summary of Contents for NTA3007HD
Page 2: ...Great Plains 166 207M 02 26 2019 Table of Contents Index ii 166 207M Table of Contents Index ...
Page 4: ...2SF24 and 2SF30 ...
Page 177: ...Table of Contents Index Table of Contents Index ...
Page 178: ...Great Plains Mfg 1525 E North St P O Box 5060 Salina KS 67402 Table of Contents Index ...