Reference
Only
Manitowoc
Published 05-16-17, Control # 233-03
7-13
999 SERVICE/MAINTENANCE MANUAL
POWER TRAIN
7
ENGINE COOLING SYSTEM
Refer to the engine manufacturer’s manual for coolant filter
replacement instructions.
for the following procedures.
Checking Coolant Level
Check the coolant level DAILY at the start of the shift when
the coolant is cold.
The coolant should be visible in the sight glass (1). If
necessary, fill the radiator as follows:
1.
Open the access cover over the top of the radiator.
2.
Place a heavy cloth over the fill cap (2) and turn the fill
cap counterclockwise until it stops (do not depress).
3.
Wait for the pressure to escape, then depress the fill cap
and turn it until it can be removed.
4.
Add coolant to the radiator.
Coolant added to the engine must be mixed with the
c o r r e c t p r o p o r t i o n s o f a n t i f r e e z e , w a t e r, a n d
supplemental coolant additive. Refer to the engine
manufacturer’s manual for specifications.
5.
When the coolant is visible in the sight glass (1), install
the fill cap (2) and securely tighten it (clockwise).
NOTE:
The maximum fill rate is 3 GPM (11 liters/min).
6.
Close the cover over the top of the radiator.
Draining Cooling System
Drain and refill the cooling system every 1,000 hours of
operation or semiannually, whichever occurs first.
1.
Wait for the cooling system to cool down.
2.
Place the radiator drain hose in a container capable of
holding 20 gal (76 L).
3.
Place a heavy cloth over the fill cap (2) and turn it
counterclockwise until it stops (do not depress).
4.
Wait for the pressure to escape, then depress the fill cap
and turn it until it can be removed.
5.
Open drain valve (6) and completely drain the radiator.
6.
When the radiator stops draining, close the drain valve
and store the drain hose on the crane.
7.
Fill and bleed the cooling system.
8.
Refer to the Lubrication Guide supplied with your crane
for cooling system capacity.
Filling and Bleeding Cooling System
Perform the following procedure to fill and bleed the cooling
system.
Coolant added to the engine must be mixed with the correct
proportions of antifreeze, water, and supplemental coolant
additive. Refer to the engine manufacturer’s manual for
specifications.
1.
Open the air bleed valve (4) in the upper radiator tube.
This valve must be open to bleed the air from the cooling
system.
2.
Add coolant to the radiator while observing the bleed
valve (4).
3.
Securely close the bleed valve when coolant appears.
4.
Continue adding coolant until the level is visible in the
sight glass (1) (engine cold).
NOTE:
The maximum fill rate is 3 GPM (11 liters/min).
5.
Run the engine until the normal operating temperature is
reached and check for coolant leaks.
6.
Check the coolant level again to make sure the coolant
is visible in the sight glass (1) or that the level has risen
in the sight glass (engine hot).
WARNING
Burn Hazard!
Do not remove the radiator fill cap from a hot engine.
Allow the engine to cool below 120
°
F (50
°
C) before
adding coolant.
Material Hazard!
Coolant is toxic. Do not ingest. If not reused, dispose of in
a c c o r d a n c e w i t h a l l l o c a l a n d o t h e r a p p l i c a b l e
environmental regulations.
CAUTION
Maintain Coolant Additive!
The required Supplemental Coolant Additive (SCA)
concentration must be maintained to prevent engine
damage.
Refe r to t he en gine m an uf ac tu rer ’s ma nu al f or
specifications and precautions.
CAUTION
Potential Engine Damage!
The required coolant level must be maintained to prevent
engine damage.
Do not add cold coolant to a hot engine. Engine castings
can be damaged. Allow the engine to cool below 120
°
F
(50
°
C) before adding coolant.
Summary of Contents for 999
Page 1: ...R e f e r e n c e O n l y Service Maintenance Manual Manitowoc 999 ...
Page 2: ...R e f e r e n c e O n l y ...
Page 4: ...R e f e r e n c e O n l y THE ORIGINAL LANGUAGE OF THIS PUBLICATION IS ENGLISH ...
Page 297: ...R e f e r e n c e O n l y ...
Page 298: ...R e f e r e n c e O n l y ...
