
l. Sheave Wheels shafts and pins should be checked daily, kept well lubricated
and replaced when worn.
m. Personnel should be alert for indications of broken strands of wire ropes and
of shackles becoming undone.
n. Cuttings or spoil at the hole collar should not be cleared by hand or any tool
unless the rig is in neutral and the clutch disengaged.
o. Slurry pits should be positioned so that they can be reached safely and easily
by the bailer/shell without danger to the drill crew or undue stress on the
bailing line. They should not be so close to the rig as to undermine the rig
grillages.
1.5.7
PLANT MAINTENANCE
a. Plant, machinery and structures should be inspected at regular intervals in
accordance with the manufacture
r’s recommendations. In the case of plant
which is subject to corrosion, steps should be taken to effect repairs before
corrosion reaches dangerous limits.
b. A planned preventative maintenance system covering shift, daily, weekly and
periodic times should be established for the different types of machine used.
This should include the inspection of all pulleys, drum surfaces and ropes,
and should stipulate their regular cleaning and lubrication. The system should
include a three-part sequence of inspection, thorough examination and
testing. Results of each stage are to be recorded and signed.
c. Cleaning, repair, maintenance, oiling or greasing of machines or the topping
up of fuel tanks should not be carried out whilst a machine is operating.
d. If inspection involves the running of a petrol or diesel engine in an enclosed
space, all doors and windows to the workshop should be opened and even
then, the engine should only be run intermittently to avoid a dangerous build-
up of fumes.
e. All plant should be kept clean by the regular removal of mud and dirt and of
snow and ice in winter, if applicable.
f. When major dismantling of components is necessary, the correct lifting
equipment should always be used and it should be ensured that struts and
chocks are strategically placed as the process continues.
g. The ignition key should always be removed, and a notice placed in such a
prominent position that it cannot be missed, if it is necessary to work
underneath a machine, or to leave it in an incomplete unsafe state.
h. Moving parts of machinery are to be guarded where possible and such
guards should be in position when machinery is in normal operation. Guards
should not be removed except as required for maintenance purposes, in
which case the machine should be immobilised.
11
Содержание DUKE STAGE IV
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Страница 35: ...SECTION 3 OPERATING INSTRUCTIONS 29 ...
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Страница 47: ...FIGURE 3 14 12 Place the spreader bar between legs and pin Figure 3 15 FIGURE 3 15 41 ...
Страница 49: ...2 Unpin and remove the stay bars Figure 3 18 Figure 3 19 FIGURE 3 18 FIGURE 3 19 43 ...
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Страница 291: ...APPENDIX A ENGINE PERKINS 403D 15 285 ...
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Страница 300: ...403D 15 IOPU Left side view 793 753 74 APPROX C OF G 179 APPROX C OF G 294 ...
Страница 301: ...403D 15 IOPU Front view 296 457 208 354 295 ...
Страница 303: ...403D 15 IOPU Rear view 255 6 234 5 250 241 7 274 24v OPTION 297 ...
Страница 304: ...403D 15 IOPU Plan view 403D 15 IOPU Underneath view 324 310 156 349 7 Ø 1 3 Ø 1 3 103 5 211 1 298 ...
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