Toyota KUN26L-P series Owner's Manual page 223

—The additional maintenance schedule
Refer to the following tables for maintenance schedule items requiring more frequent service specific to the type of special operating
conditions (For outline, see "Maintenance schedule requirements" on page 210).
A−1: Operating on rough, muddy or melted−snow roads
j Inspection of brake linings and drums
j Inspection of brake pads and discs
j Inspection of brake line pipes and hoses
j Lubrication of propeller shafts grease
(including tightening of bolts) «See note 11.»
j Inspection of drive shaft boots and torque
(including tightening of bolts)
j Inspection of steering wheel, linkage and steering gear box oil
j Inspection of front and rear suspensions
j Tightening of bolts and nuts on chassis and body
NOTE:
11. After submerged, be sure to apply grease within 24 hours regardless of the maintenance intervals.
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Every 10000 km (6000 miles) or 6 months
Every 5000 km (3000 miles) or 3 months
Every 10000 km (6000 miles) or 6 months
Every 5000 km (3000 miles) or 3 months
Every 10000 km (6000 miles) or 12 months
Every 5000 km (3000 miles) or 3 months
Every 10000 km (6000 miles) or 6 months
Every 10000 km (6000 miles) or 6 months