shutdown system to be fitted to all towers, because at
present a derailment could destroy several towers
before the underspeed relay initiated a shutdown.

Maintenance

As may be expected from reading this paper, main-
tenance requirements are extremely heavy. A crew
of 11 men, with a foreman and general foreman, look
after the mechanical maintenance requirements of the

EXISTING PROFILE AND NEW PROFILE
Upper Section of Tramline

crusher and tramline. The tramline works on a five-
day, three-shift basis, with two days normally sched-
uled for maintenance. In addition to these two days,
additional time is scheduled as required for major
work.

During the time the tramline is operational, the
track ropes are lubricated by a special oiler car which
is permanently fastened in the string of tramcars. The
car wheel operates a pump to apply lubricant to the

FIGURE 9 — Existing profile and new profile for the upper section of the tramline.

Floating hopper-type bin.

Counter weight
take-up

60" Reversible belt

_10' diameter tail wheel with
/ Polyurethane tread

_- Deflection sheave

..—— Track rope anchors
Car
cleaner

FIGURE 10 —Tramline discharge terminal.

— 8 =