Disassembly & Assembly
Remove & Install Water
Fluid Spillage Containment
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting and
repair of the machine. Be prepared to collect the fluid with
suitable containers before opening any compartment or
disassembling any component containing fluids. Refer to
"Tools And Shop Products Guide", NENG2500 for tools and
supplies suitable to collect and contain fluids in Caterpillar
machines. Dispose of fluids according to local regulations and
At operating temperature, the engine coolant is hot and
under pressure. Steam can cause personal injury. Check
the coolant level only after the engine has been stopped
and the fill cap is cool enough to touch with your bare
hand. Remove the fill cap slowly to relieve pressure in the
cooling system. Cooling system conditioner contains
alkali. Avoid contact with skin and eyes to prevent
Drain the coolant from the cooling system into a suitable
container for storage or disposal.
Loosen bolts (1) and (2) on water pump drive (3).
Remove V-belt (4) from the drive pulley on the water
pump and the pulley on the water pump drive.
Remove two hose clamps (5). Disconnect the hose
temperature regulator housing at the water pump.
Remove four bolts (6) that hold the water pump to the
front of the engine. Carefully remove the water pump
and two O-ring seals from the front of the engine.
The following steps are for the installation of the
Check the condition of the two O-ring seals used
between the water pump and the cylinder block. If the
seals are damaged, use new parts for replacement.
Install the two O-ring seals in the cover of the water
pump. Put the water pump in position on the front of the
engine, and install four bolts (6) that hold it.
Connect the short hose used between the water pump
and the water temperature regulator housing to the
water pump. Install two clamps (5) that hold the hose in
Put V-belt (4) in position on the water pump drive pulley
and the pulley on water pump drive.
Adjust the tension of water pump drive V-belt (4). Bolt
(7) or square hole (8) is used to apply and hold V-belt
tension. See the "Belt Tension Chart" in the
Specifications module for the correction tension of the
Fill the cooing system with coolant to the correct level.
For the correct filling procedure, refer to the Operation &