99903514: TELESCOPIC CRANE: 1-17 SECTION 1: OPERATION
1-14: OPERATION IN ADVERSE
CONDITIONS
1-14-1: DUSTY AND SANDY AREAS
Operating in dusty or sandy areas presents
special problems due to the abrasive action of
dust which shortens the life of parts. Make
every effort to keep dust and sand out of the
moving parts of the crane machinery and
engine.
1. All lubricants and lubricating equipment must
be kept clean. Service breathers and air clean-
ers frequently to remove accumulated sand and
dust. Lubricate more frequently to keep a
supply of clean lubricant in the moving parts.
Clean all lubrication fittings thoroughly before
attaching the grease gun.
2. Keep the fuel tank filler cap tight to prevent
sand and dust from entering the fuel tank.
Service fuel filters frequently to keep them free
of sand and dust.
3. Keep the hydraulic oil reservoir caps tight to
prevent sand and dust from entering the hydrau-
lic systems. Service the hydraulic oil filters
frequently to keep the system free of sand and
dust.
4. Use wood blocking or mats under the
outrigger pads when operating in sand. See
that the carrier vehicle does not shift during
operation.
5. Before performing service on the crane, such
as replacing hoses, thoroughly clean hose
connections and surrounding area. Failure to
do so will allow sand particles into the hydraulic
system which will damage the pump, holding
valves, valvebank and cylinders, leading to
costly repairs.
1-14-2: HIGH HUMIDITY OR SALT AIR
CONDITIONS
Moisture and salt will cause deterioration of
paint, cables, wiring and all exposed metallic
parts. Keep parts dry and well lubricated in high
humidity or salt air conditions.
1. Completely remove rust and corrosion as
soon as it appears on any part of the machine.
Wash off salt water and dry all parts thoroughly.
Paint the exposed surfaces immediately. Place
a film of lubricant or grease on all polished or
machined surfaces and other surfaces which
cannot be painted.
2. Keep parts thoroughly lubricated to repel
water from polished metal surfaces and to
prevent the entry of water into bearings. Keep
lifting cables well lubricated.
1-14-3: HIGH ALTITUDE
Operation at high altitudes presents special
problems due to lower atmospheric pressure
and wide temperature ranges. Consult the
vehicle owner’s manual regarding operating the
vehicle at high altitudes.
1-14-4: COLD WEATHER
For cold weather operation with temperatures of
-25°F or lower, the following procedures must
be followed:
1. Start the truck and run at manufacturer’s
recommended idle speed for proper warm up.
2. After approximately 45 minutes of truck warm
up time, engage the PTO.
3. With the PTO fully engaged and the truck
engine running at idle speed, let the hydraulic
system oil circulate.
CAUTION
DURING THE 45 MINUTES ALLOWED FOR WARM
UP, DO NOT RACE TRUCK ENGINE AND OVER
SPEED HYDRAULIC PUMPS. PUMP CAVITATION,
WITH PERMANENT DAMAGE, MAY RESULT.
If at any time during oil circulation, and espe-
cially during the initial warm up time, any hy-
draulic pump noise such as metal grinding, or a
popping noise is heard, shut down the unit
immediately. Check that the hydraulic oil line
20030115
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