Table 9-3. Preventive Maintenance Checks and Services for Electrical Power Systems(Continued)
B - Before
D - During
A - After
H - Hourly Interval
CHECK FOR AND HAVE
IS NOT READY/
REPAIRED OR ADJUSTED
B D A
Install all drain plugs. Fill system
with neutralizing solution or 250 g
(1/2 lb) Sodium Carbonate Crys-
tals (Na2CO.H20) per 40 L (10 US
(f) Start and run engine for 10 min-
utes. Stop engine and drain neu-
(g) Flush system with clean water,
until draining water is clean. Do
not run engine while flushing.
(h) Install all drain plugs.
Fill engine with clean water. Run
the engine for 10 minutes and
drain. Repeat until drained water
Add 1 L (1 qt) of Caterpillar Cooling
System Conditioner, or equivalent,
for each 30 L (8 gal) of cooling
system capacity so cooling sys-
tem will have a 3 percent to 6 per-
cent concentration of conditioner.
Most systems will require 2L (2 qt)
of conditioner at initial fill and .50 L
(1 pt) every 250 service hours.
(k) Mix antifreeze and water to
provide protection to the lowest
expected ambient temperature.
To help avoid air locks, add
coolant slowly, at 19 L (5 US gal)
per minutes or less.
Fill cooling system with 5 gal of clean
fresh water. Add 2 qt of coolant sys-
Bring coolant level to within 1/2 in of
bottom of filler pipe.
Start engine with radiator cap off.
When coolant level stabilizes, add
additional water if necessary.