Cleaning - Manitowoc Grove TMS700E Service And Maintenance Manual

TMS700E SERVICE MANUAL
Install charged filter if SCA levels are normal or below
normal; install non-charged filter if SCA levels are above
normal (contact Manitowoc Crane Care for filter part
number).
1 year or 1000 hours
• Test antifreeze/coolant for contamination.
Condemning limits are:
- Sulfate level greater than or equal to 1500 ppm.
- Chloride level greater than or equal to 200 ppm.
- The pH level is less than 6.5
- Oil or fuel contamination can be identified by odor or
color.
If condemned, flush the system using a commercially
available flushing agent. Refill system with fully
formulated extended life coolant.
NOTE: Remove the radiator cap when draining the system
to ensure proper draining.

Cleaning

The cooling system is pressurized and injury can result
when removing the radiator cap at operating temperature.
Use proper protection to remove the radiator cap.
1. Coolant shut-off valves to heaters and other accessories
should be open to allow complete circulation during
cleaning, flushing, and draining. Run the engine with
radiator covered if necessary until temperature is up to
operating range 71 to 82°C (160 to 180°F). Stop the
engine, remove the radiator cap, and drain the system
by opening the drain cocks on the radiator and engine
block.
2. Allow the engine to cool, close the drain cocks, and pour
the cleaning compound into the surge tank according to
the directions. Fill the system with water.
3. Place a clean drain pan to catch the overflow, and use it
to maintain the level in the radiator. Do not spill the
solution on the vehicle paint.
4. Replace the radiator cap and run the engine at moderate
speed, covering the radiator if necessary, so the system
reaches a temperature of 82°C (180°F) or above, but
does not reach the boiling point. Allow the engine to run
at least two hours, or according to recommendations of
the manufacturer of the cleaning compound, at 82°C
(180°F) so the cleaning solution may take effect. Do not
drive the vehicle or allow the liquid level in the radiator to
drop low enough to reduce circulation.
Grove
CAUTION
Published 01-29-2015, Control # 512-01
5. Stop the engine as often as necessary to prevent boiling.
6. With the engine stopped, feel the radiator core with bare
hands to check for cold spots, and then observe the
temperature gauge reading. When there is no change in
temperature for some time, drain the cleaning solution.
7. If clogging of the core is relieved but not fully corrected,
allow the engine to cool, pressure-flush the system (see
Pressure Flushing, page 7-23) and repeat the cleaning
operation.
8. If clogging of the core, indicated by low temperature
spots on core, is not relieved, the radiator core must be
removed for mechanical cleaning. Mechanical cleaning
requires removal of the upper and lower tanks, and
rodding out the accumulated rust and scale from the
water passages of the core.
Pressure Flushing
1. Disconnect both radiator hoses that connect the radiator
to the engine.
2. Clamp a convenient length of hose to the radiator core
outlet opening, and attach another suitable length of
hose to the radiator inlet opening to carry away the
flushing stream.
3. Connect the flushing gun to compressed air and water
pressure, and clamp the gun nozzle to the hose
attached to the radiator outlet opening.
4. Fill the core with water. Turn on air pressure in short
blasts to prevent core damage.
5. Continue filling the radiator with water and applying air
pressure as above until the water comes out clear.
6. Clamp the flushing gun nozzle firmly to a hose attached
securely to the engine water outlet opening. Fill the
engine block with water, partly covering the water inlet
opening to permit complete filling.
7. Turn on compressed air to blow out water and loose
sediment. Continue filling with water and blowing out
with air until flushing stream comes out clear.
8. For badly clogged water jackets that do not respond to
regular pressure flushing, remove the engine cylinder
head and core hole plugs, and with a suitable length of
small copper tubing attached to the flushing gun nozzle,
flush the water jackets through the openings.
9. When the vehicle is equipped with a water heater
connected to the cooling system, flush the heater,
following the same procedure as for the radiator core.
10. After completing the flushing operation, clean out the
overflow pipe; inspect the water pump; clean the
thermostat and the radiator cap control valves. Check
the thermostat for proper operation before installation.
POWER TRAIN
7
7-23