SANY SR400R - Construction of Drilling Rig

Safety, Operation and Maintenance Manual-September 30, 2019
2-59
• Before rotating the swing system, check whether there are obstacles within the reach of drilling
tool and mast, whether they are high enough off the ground. Ensure that ropes and mast do not
hit other items.
• When the drilling rig is traveling and before rotating upper carriage rotary table, tilt the mast
backwards to a certain angle in order to increase stability.
Fig.2-105
• For the minimum distance to obstacles,
adhere to national and local construction
safety laws and regulations.
• Pay extra attention when the drilling rig is
traveling on soft ground. Place wooden or
iron plates under the tracks if the ground is
soft or tends to sink.
• Provide enough illumination if the drilling rig
has to be operated at night.
2.6.12 Construction of drilling rig
Before construction, choose the adequate drilling rig, Kelly bars and drilling tools to meet the geo-
logical and construction requirements.
• Before construction, consolidate and level the job site in advance. If construction is required on
a slope, ensure that inclination angle is within the allowed range. Try best to operate the rig
along the slope and avoid operation cross the slope.
• Keep the drilling rig at the travel locking status when drilling hole, which can prevent from
moving the rig.
• In case of soft ground, such as backfill and silt, consolidate and level the ground in advance
before construction. When necessary, put thick steel plates. Thickness of steel plate should be
no less than 20mm, their length and width should be 1m longer than those of the track.
• Before lowering or erecting masts, ensure that the boom is higher than the cab to avoid the cab
being crushed.
• When the drilling rig is in operation, its upper carriage and undercarriage must be kept in
parallel.
• Never use the drill bucket to dump soil by pulling drilling tools upwards and downwards rapidly
or knocking it upon other objects.
• When rotating and dumping soil, pay attention to the drill bucket and boom height off the ground
to avoid collision.
• Stop operation at once if the drilling rig body tilts because of rotary drive being pressurized or
drill bucket being raised by winch.
SR400R Rotary Drilling Rig
Safety
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