Hour Lubrication And Maintenance Checks (Continued) - Komatsu 730E Operation & Maintenance Manual

OM4064 06/11
Lubrication and Service

250 HOUR LUBRICATION AND MAINTENANCE CHECKS (Continued)

Truck Serial Number______________________
Hourmeter_____________
8. 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.
Use Lube Key "D".
9. CAB AIR FILTERS - Under normal operating condi-
tions, clean the cab filter and the HVAC recircultion fil-
ter every 250 hours. In extremely dusty conditions,
service as frequently as required. Clean the filter ele-
ment with mild soap and water. Rinse completely
clean and air dry with a maximum of 275 kPa (40 psi).
Reinstall the filter.
10. MOTORIZED WHEEL GEAR CASE - Refer to Motor-
ized Wheel Maintenance Schedule in Section P of the
shop manual. Check the oil level. Use Lube Key "C".
11. GREASE RESERVOIR - Add grease to the in-frame
grease reservoir. Use Lube Key "D".
12. HYDRAULIC SYSTEM FILTERS - Replace filter ele-
ments only after the initial 250 hours of operation;
then at each 500 hours of operation thereafter. Check
oil level. Add oil as necessary. Lube Key "B".
13. BODY-UP & HOIST LIMIT SWITCHES - Check oper-
ation of the switches. Clean the sensing areas of any
dirt accumulation and inspect the wiring for any signs
of damage.
14. GE PREFILTER BLOWER (IF EQUIPPED) - Add
grease to the grease fitting. Use Lube Key "D".
15. AC DRIVE BELT - Check the belt for wear or
damage. Verify the belt tension is correctly set.
Ensure the pulleys are aligned with each other within
3 mm (0.13 in.).
16. AUTOMATIC LUBE SYSTEM - Perform 250 hour
checks as outlined in Automatic Lubrication System,
Section 42, in this manual.
17. FRONT WHEELS - Check the oil level. Position the fill
plug at the 12 o'clock position. The floating ball in the
sight gauge must be at its highest position. Add oil as
necessary. Remove and inspect magnetic plug for
contamination, if equipped. Lube key "E".
18. DUMP BODY PADS - Check the pads, shims, and
mounting hardware for wear and proper tightening
Complete the 10, 50, and 100 hour lubrication and maintenance checks.
Site Unit Number_______________
Name of Service Technician___________________________________
TASK
Maintenance - Section 40
Date_______________
COMMENTS CHECKED INITIALS
Page 40-11