151
SJ1044 TH, SJ1044 THS, SJ1056 TH, SJ1056 THS, SJ1256 THS
230790ABA
1000 Hour or Annual Routine Maintenance Section 5 – Procedures
5.5-5 Change Engine Coolant
WARNING
Always shut off the engine and allow it to cool
down before removing the radiator cap. Steam or
fluid escaping from the radiator may cause severe
injury. Remove cap slowly to relieve pressure.
Avoid contact with steam or escaping fluid.
NOTE
Machines with an enclosed cab have a heater
unit that needs to be flushed separately.
NOTE
Place the heat select switch in the full hot position
if equipped.
1. Open the radiator cap to ensure proper draining.
Radiator Cap
Figure 56 Radiator Cap
2. Place a container capable of holding 5 gallons (17
liters) under the radiator drain plug.
3. Open the drain plug and allow radiator and
coolant bottle to drain.
NOTE
Refer to your local/national regulations on how to
dispose of used coolant fluid.
Drain Plug
Figure 57 Radiator Draining
4. Close the drain plug.
NOTE
For machines without an enclosed cab continue
from step 10.
5. Close manual heater valve located near the
radiator cap/surge tank then disconnect the
heater hose connected to it.
6. Locate the motorized heater valve and disconnect
the heater hose going to the heater unit.
Motorized
Heater Valve
Manual
Heater Valve
Disconnect
Figure 58 Hoses Disconnection