Komatsu 830E-AC Shop Manual page 1018

250 HOUR LUBRICATION AND MAINTENANCE (Continued)
2. COOLING SYSTEM -
a. COOLANT MIXTURE - Check for proper
coolant mixture. Add coolant as required.
b. COOLANT FILTERS - Change coolant filters.
c. COOLING SYSTEM HOSES - Check cooling
system hoses for damage and signs of deteri-
oration.
Refer to the engine maintenance manual for coolant
filter replacement instructions and proper coolant mix-
ture instructions.
3. FUEL FILTERS - Change the fuel filters (fuel separa-
tors). Refer to engine Operation & Maintenance man-
ual for specific filter replacement instructions.
4. FUEL TANK - Drain water and sediment from the fuel
tank. Refer to Shop Manual, Section B, Fuel Tank -
Cleaning.
5. STEERING LINKAGE - Check the torque on pin
retaining nuts (1, Figure 2-6) on the steering linkage -
712 N·m (525 ft lbs). Check the torque on tie rod
retaining nuts (2) - 420 N·m (310 ft lbs).
6. HYDRAULIC PUMP DRIVESHAFT & U-JOINTS -
Add one or two applications of grease to each grease
fitting. Non - moly grease only. Check that each bear-
ing of the cross & bearing assembly is receiving
grease. Replace bearings if any wear is detected.
7. CAB AIR FILTER - Under normal operating condi-
tions, clean every 250 hours. In extremely dusty con-
ditions, service as frequently as required. Clean the
filter element with mild soap and water. Rinse com-
pletely clean and air dry with a maximum of 275 kPa
(40 psi). Reinstall the filter. Refer to Figure 2-4.
P2-12
TASK
FIGURE 2-6.
Lubrication and Service
COMMENTS CHECKED INITIALS
10/06 P02050