Manitowoc Grove TMS9000-2 Series, Руководство по обслуживанию

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Published 01-14-2021 Control # 707-01
POWER TRAIN TMS9000-2 SERVICE MANUAL
NOTE: The aftertreatment DEF dosing system will not
prime until the correct SCR temperatures are
reached. To verify that there are no DEF leaks,
initiate a manual regeneration to get the SCR
system up to temperature.
1. Connect the batteries by turning the battery switch to
ON.
2. Operate the engine and check for leaks.
WATER COOLING SYSTEM
Description
The cooling system consists of the radiators, coolant
recovery tank, engine cooling circuit, and the connecting
hoses. Cooling system capacity is approximately 18.5L (70
quarts). The temperature is controlled by two separate
thermostats with staged opening temperatures. The first
thermostat opens at 88°C (190°F) located between the top of
the engine and the top of the radiator. At all times, the
antifreeze/coolant should be properly inhibited against
corrosion. It is recommended that a 50/50 fully formulated
antifreeze coolant be used at all times.
The radiator assembly consists of the engine water cooler,
charge air cooler, and the shroud.
A radiator coolant level switch is installed in the top portion of
the radiator surge tank. Coolant level high/low signals are
supplied to the engine ECM.
The crane is equipped with a carrier cab hot water heater.
Hot water is supplied by the engine coolant system through a
cable operated shutoff valve to the heater.
Maintenance
General
The cooling system includes the radiator, coolant recovery
tank, thermostat, the fan, and water pump. Radiator hoses
are also included in this group.
The cooling system is often neglected because the effects or
damage that result from an improperly maintained system
usually occur gradually. The cooling system needs to be
maintained with the same attention as other systems.
The circulation of water through the cooling system relies
entirely upon the water pump. The water pump draws water
from the radiator and forces it through the water jacket and
cylinder head. There it accumulates heat and flows to the top
radiator tank. Then the water flows down through the radiator
core and is cooled by air from the fan. This process of
removing heat from water as it circulates holds the engine to
its efficient operating temperature.
The following paragraphs point out several facts about
cooling system components, the effects of cooling system
neglect, and procedures to be followed for cooling system
maintenance.
Effects Of Cooling System Neglect
Whenever an engine does not perform at top efficiency, a
neglected cooling system may be at fault even though the
part directly responsible is not a part of the cooling system.
Most of these problems can be traced to overheating;
however, an engine that is running too cold can be just as
troublesome.
Overheating
An engine that is overheating may lead to troubles such as
the following:
• Burned valves.
• Pinging or knocking.
• Excessive fuel consumption.
• Poor lubrication - increased engine wear.
• Sticking valves.
• Short injector life.
• Engine hot spots.
• Need for higher grade fuel.
Overcooling
The following engine troubles result when an engine is
overcooled:
• Excessive fuel consumption.
• Sludge formation in crankcase.
• Corrosive acids formed in crankcase.
• Excessive fuel deposits in the exhaust system.
Rust Prevention
To keep engines operating at newness efficiency, all forms of
rust formation must be prevented. The formation of rust in
the cooling system is a result of the interaction of water, iron,
CAUTION
Machine Damage Hazard!
Do not use the flow test portion of the INSITE™ electronic
service tool Diesel Exhaust Fluid Doser Pump Override
Test to check the system for leaks. This will spray diesel
exhaust fluid into the exhaust system at too low of
temperatures to evaporate, resulting in deposit formations
in the exhaust system.
Fo
r
Reference
Only