SECTION II
CONTROLS AND OPERATION
8. Keep as much air as possible circulating around the
2. Keep parts lubricated thoroughly to repel water from
battery. Check the electrolyte level frequently; add
polished metal surfaces and to prevent the entry of water
distilled water as necessary to keep the electrolyte level
into bearings. Keep lifting cables lubricated.
3/8 inch (9.2 mm) above the plates.
OPERATION AT HIGH ALTITUDES.
9. Keep the air intake and exhaust openings clear.
Keep the engine dean, and allow air to circulate freely
Operation at high altitudes present special problems due
around the engine.
to lower atmospheric pressure and wide temperature
ranges. At altitudes above 5000 feet (1524 m) it may be
10. Avoid racing the engine; and avoid operation at full
necessary to change the engine fuel injectors. Make
throttle when part throttle will handle the load.
certain that the air cleaner is clean and free from
obstructions.
Check the engine frequently for
11. Avoid lugging the engine; keep the engine speed
overheating.
high enough to maintain fan speed.
INSTALLING ROPE ON DRUMS
12. Avoid idling the engine unnecessarily; shut the
engine down during a lull in the operation.
The manner in which a new or replacement wire rope if
OPERATION IN DUSTY AND SANDY AREAS.
installed on the winch drum will, to a large measure,
Operation in dusty or sandy areas present special
determine the service life of that rope. Improperly wound
problems due to the abrasive action of dust which
ropes will cause undue crushing of the rope, doglegs,
shortens the life of parts. Make every effort to keep dust
kinks, excessive abrasion and cutting of the individual
and sand out of the moving parts of the crane machinery
wires. Bad spooling also causes uneven application of
and engine.
force and motion. This results in fast fatiguing of the
rope from the hook block to the drum, The following five
1. All lubricants and lubricating equipment must be kept
precautionary steps should be taken, particularly with a
clean. Service breathers and air cleaner frequently to
replacement wire rope, before starting the actual
remove accumulated sand and dust. Lubricate more
installation of the rope.
frequently to keep a supply of clean lubricant in the
moving parts Clean all lubrication fittings thoroughly
1. A check should be made of the drum to determine the
before attaching the grease gun.
condition, size and shape of the drum grooves.
2. Keep the fuel tank filler cap tight to prevent sand or
2. Drum flanges should be checked to determine the
dust from entering the fuel tank. Service fuel filters
extent, if any, of undercutting at the base of the flange,
frequently to keep them free from sand and dust.
3. Dirt, grit, or any other type of debris should be
3. Keep the hydraulic oil reservoir filler cap tight to
cleaned off the drum.
prevent sand and dust from entering the hydraulic
system. Service the hydraulic oil filter frequently to keep
4. Bearings should be checked.
the system free from send and dust.
5. Cracks or breaks in the drum should be reported.
4 Use wood blocking or mats under the outrigger jack-
Whenever any of these conditions are observed, the
floats when operating in send. See that the carrier does
winch should be removed from service and properly
not shift during operation.
cleaned, repaired or replaced. This recommendation is
made not only to improve or maintain good rope life, but
OPERATION IN HUMIDITY OR SALT WATER AREAS.
to eliminate a potential hazard.
Moisture and salt will cause deterioration of paint, cables,
After establishing the satisfactory condition of the winch
wiring, and all exposed metallic parts. Keep parts dry and
drum, mount the reel of wire rope on suitable jacks at the
well lubricated in high humidity or salt water conditions.
front of the boom. Pass the end of the rope over the
idler sheave at the boom point and attach the rope to the
1. Completely remove rust and corrosion at the first
winch drum as shown In Figure 2-13.
appearance on any part of the truck crane. Wash off sit
NOTE
water and dry all parts thoroughly; paint the exposed
A tension should be induced into the
surfaces immediately. Place a film of lubricant or grease
rope by providing some means of
on all polished or machined metal surfaces and other
braking the shipping reel while
surfaces which cannot be painted.
installing the rope on the winch
drum. A tight winding is imperative.
1-2-21
