Harrington Hoists and Cranes MCR Trolley - Manual (Page 24)

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Figure 3-12 Typical Arrangements of Filter, Regulator and Lubricator and
Maximum Air Supply Hose Lengths
3.10.4
CAUTION
Fittings - Important considerations regarding fittings in the hoist and trolley's air
supply include:
When connecting air supply components, remove all dirt or debris from the connecting surfaces of
the hoses, pipes, fittings, or threaded fasteners to prevent contaminants from entering the hoist and
trolley.
Keep airflow restrictions such as quick disconnect fittings, bends, elbows, and adapters to a
minimum.
3.10.5
CAUTION
Before connecting the trolley hoist to its air supply line, perform the proper draining
and purging procedures to prevent contaminants or moisture from entering the hoist.
3.11 Connecting Trolley Hoist to Air Supply
3.11.1
WARNING
HAZARDOUS AIR PRESSURE IS PRESENT IN THE HOIST AND TROLLEY, IN
THE SUPPLY OF COMPRESSED AIR TO THE TROLLEY HOIST, AND IN THE CONNECTIONS
BETWEEN COMPONENTS.
3.11.2 Shut off the air supply and stop the airflow completely. Lock out and tag out in accordance with ANSI
Z244.1 “Personnel Protection -Lockout/Tagout of Energy Sources”.
3.11.3
CAUTION
Before connecting the air supply hose to the trolley , always purge the air hose to
clear any debris and water.
3.11.4 Apply approximately 1 – 1½ ounce of turbine oil (see approved lubricant under Section 6.0 Lubricants)
into the hose before attaching to the hoist.
3.11.5 Make connections to air supply; reference Figure 3-13.