MAINTENANCE
7-31
C. Transmission
Travel Reduction Gear
Check Oil Level --- every 250 hours
1. Parkthemachineonalevelsurface.
2. Rotate the travel motor until the plugs are positioned as
illustrated on the right.
3. Parkthemachinefollowingthesameproceduresas
describedonpage7-7forpreparationforinspectionand
maintenance.
d
WARNING: Keep body and face away from the air
release plug. Gear oil may be hot just after operation.
Wait for gear oil to cool and then gradually loosen the
air release plug to release pressure.
4. After gear oil has cooled, slowly loosen air release plug
(1) to release pressure.
5. Removeairreleaseplug(1)andoillevelcheckplug(2).
Oilmustbeuptothebottomoftheplug(2)screwhole.
6. Ifnecessary,addoiluntiloilflowsoutofoillevelcheck
plug (2) screw hole.
7. Cleanandinstallairreleaseplug(1)andoillevelcheck
plug (2).
Model Tightening Torque
ZX17U-5N 35±5N·m(3.5±0.5kgf·m,
26±3.7lbf·ft)
ZX26U-5N
30to40N·m(3to4kgf·m,22
to29.5lbf·ft)
8. Checkthegearoillevelintheothertravelreduction
gear.
1
2
3
1
2
3
M503-07-015
M585-07-080