CONTROLS AND OPERATION
OPERATION IN DUSTY AND SANDY AREAS. Operation in
6. Disengage the propel brake and move the propel con-
dusty or sandy areas presents special problems due to the
troller to move hydraulic oil through the pumps, thereby in-
abrasive action of dust which shortens the life of parts.
suring proper lubrication of pump and motor components.
Make every effort to keep dust and sand out of the moving
7. Before shutting down the machine drive the machine
parts of the crane machinery and engine.
onto wooden planks or mats to prevent the machine from
1. All lubricants and lubricating equipment must be kept
being frozen to the ground.
clean. Service breathers and air cleaners frequently to re-
move accumulated sand and dust. Lubricate more fre-
OPERATION IN EXTREME HEAT. Operation in extreme heat
quently to keep a supply of clean lubricant in the moving
presents special problems due to the difficulty in keeping
parts. Clean all lubrication fittings thoroughly before at-
the engine and hydraulic oil from overheating.
taching the grease gun.
1. Refer to Section III for lubricant recommendations for
2. Keep the hydraulic oil reservoir filler caps tight to pre-
hot weather operation. Change the lubricant if necessary.
vent sand and dust from entering the hydraulic system. Ser-
vice the hydraulic oil filters frequently to keep the system
free from sand and dust.
2. Make certain that the engine crankcase oil is at the
proper level. An inadequate supply of crankcase oil will pre-
3. Inspect the clutch and brake linings frequently. After op-
eration in dust or sand, blow loose grit out of linings. Failure
to keep the linings clean will result in worn bands, scored
3. Drain and flush the cooling system, to insure proper cir-
drums, and unsatisfactory operation.
culation of coolant throughout the radiator core. Clean the
radiator cooling fins, particularly the air passages through
4. Keep unused cables in boxes. Clean and lubricate oper-
the core, of Insects, leaves, dirt, and other foreign material
ating cables frequently.
that will restrict air flow.
5. Keep the fuel tank filler cap tight to prevent sand or dust
4. Inspect the cooling system for leaks. Replace worn or
from entering the fuel tank. Service fuel filters frequently to
damaged hoses. Tighten the hose clamps.
keep them free from sand and dust.
5. Keep the water pump fan belt adjusted properly.
6. Use wood blocking or mats under the crawlers when op-
6. If the engine becomes overheated from lack of coolant,
erating in sand.
let the engine run at a fast idle and add coolant slowly.
OPERATION IN HUMID OR SALT WATER AREAS. Mois-
7. If the engine overheats after refilling the cooling sys-
tem, shut down the engine and allow it to cool. Drain the
wiring, and all exposed metallic parts. Keep parts dry and
cooling system by opening the drain cocks on the radiator
well lubricated in high humidity or salt water conditions.
and the engine block, and flush out the system. Refill the
1. Completely remove rust and corrosion at the first ap-
cooling system with coolant; do not use salt or mineral
pearance on any part of the machine. Wash off salt water
water solutions in the cooling system.
and dry parts thoroughly; paint the exposed surfaces im-
mediately. Place a film of lubricant or grease on all polished
8. Keep as much air as possible circulating around the bat-
or machined metal surfaces and other surfaces which can-
tery. Check the electrolyte level frequently; add distilled
not be painted.
water as necessary to keep the electrolyte level 3/8 inch
above the plates.
2. Keep parts lubricated thoroughly to repel water from
polished metal surfaces and to prevent the entry of water
9. Keep the air intake and exhaust openings clear. Keep the
into bearings. Keep lifting cables lubricated.
engine clean, and allow air to circulate freely around the en-
OPERATION AT HIGH ALTITUDES. Operation at high alti-
10. Avoid racing the engine; and avoid operation at full
tudes presents special problems due to lower atmospheric
throttle when part throttle will handle the load.
pressure and wide temperature ranges. At altitudes above
11. Avoid lugging the engine; keep the engine speed high
5000 feet it may be necessary to change the engine fuel
enough to maintain fan speed.
injectors. Make certain that the air cleaners are clean and
free from obstructions. Check the engine frequently for
12. Avoid idling the engine unnecessarily; shut the engine
down during a lull in the operation.