
130
Maintenance Section (D6T LGP (OEM)) WEBM1000
Cooling System Coolant (ELC) - Change
Table 25
Required Tools
Tool
Part
Number
Pa
rt Description Qty
A 1U-7505
Mobile Transmission Jack
(Low Lift)
1
158
Illustration 158
2. Use Tooling (A) and a suitable block to support
the front bottom guard.
Note: The front bottom guard weighs 75 kg (165 lb).
3. Remove nuts (1) and the washers.
4. Remove bolts (2) and the washers. Lower
Tooling
(A) and remove the front bottom guard from the
machine.
5. Dir
ect the hose on the drain valve (pipe) into a
suitable container.
6. Open t
he drain valve. Allow the coolant to drain
into a suitable container.
7. Close
the drain valve. Fill the system
with a
solution which consists of clean water and of
cooling system cleaner. The concentration of the
cooling system cleaner should be 6 to 10
percent.
8. St
art the engine. Run the engine for 90 minutes.
St
op
the engine. Drain the cleaning solution into
a suitable container.
9. Whi
le the engine is stopped, flush the system
with wat
er. Flush the system until the draining
water is clear.
10. Clo
se the drain valve.
159
Illustration 159
11. Use Tooling (A) and a suitable block to install the
front bottom guard.
12. Install the front bottom guard on the machine
with the fo
ur bolts (2), the washers, and nuts.
Tighten nuts (1) to 370 50 N·m (273 37 lb ft).
13. Add t
he coolant solution. See the following topic
in this publication:
• Capacities (Refill)
Note: Caterpillar antifr
eeze contains additive. If you
are using Caterpillar antifr
eeze, do not add the
supplemental coolant additive at this time. Also, do
not change the supplemental coolant additive
element at this time.
14. Star
t the engine. Run
the engine without the filler
cap until the thermostat opens and the coolant
level stabilizes.
160
Illustration 160
15. Open the left engine access door. Check the
coolant level. Make necessary adjustments to
the coolant level. Fill the coolant level to the top
of the sight glass, as shown.
16. If the
gasket is damaged, replace the filler cap.
Install the filler cap.