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5-21
MAINTENANCE
INSPECTING THE HYDRAULIC OIL TANK
LEVEL AND REPLENISHING
Oil may spurt out if caps or filters are
removed or pipes are disconnected
before releasing the pressure in the
hydraulic system.
• Gradually loosen the vent plug to relieve
tank pressure.
Inspection
The oil level changes with the oil
temperature. Inspect the oil by maintaining
the machine at posture shown in the figure at
the next.
• Machine posture for inspecting the
hydraulic oil level
DAILY INSPECTION (EVERY 10 HOURS)
1. Start the engine and run it at low speed.
2. Fully extend the crawler width.
3. Fully retract the cylinders (arm and
bucket), and lower the bucket to the
ground.
4. Lower the dozer blade, and then stop the
engine.
5. Inspect the oil level using the sight gauge
(1).
· When the oil temperature is about 20°C
(68°F):
The level should be between the upper
limit (H) and the lower limit (L).
If it is below the lower limit (L), replenish.
· When the oil temperature is about 50 to
80°C (122 to 176°F):
The level should be slightly below the
upper limit (H).
Replenishing
IMPORTANT: Do not fill up to the level
higher than the upper limit (H). It will
damage the hydraulic circuits or result in
oil spurting. If accidentally done, stop the
engine and wait the hydraulic oil to cool,
and then let the excessive oil to drain
from the drain plug.
1. Open the side cover.
2. Slowly loosen the plug (2) to relieve the
internal pressure, and then remove the
plug.
3. Add the hydraulic oil up to the middle of
the sight gauge (1).
4. Tighten the plug (2).
Summary of Contents for TB225
Page 1: ......
Page 7: ...0 5...
Page 12: ...0 10...
Page 13: ...1 1 SAFETY...
Page 52: ...1 40 SAFETY SAFETY SIGNS DECALS...
Page 53: ...1 41 SAFETY SAFETY SIGNS DECALS...
Page 54: ...1 42 SAFETY SAFETY SIGNS DECALS...
Page 55: ...1 43 SAFETY SAFETY SIGNS DECALS...
Page 56: ...1 44...
Page 57: ...2 1 CONTROLS...
Page 69: ...2 13 MEMO...
Page 105: ...2 49 MEMO...
Page 131: ...3 1 OPERATION...
Page 161: ...4 1 TRANSPORT...
Page 165: ...4 5 TRANSPORT HOISTING THE MACHINE Two point suspension Three point suspension...
Page 167: ...5 1 MAINTENANCE...
Page 189: ...5 23 MEMO...
Page 209: ...5 43 MEMO...
Page 231: ...6 1 TROUBLESHOOTING...
Page 250: ...6 20...
Page 251: ...7 1 SPECIFICATIONS...
Page 253: ...7 3 MEMO...
Page 254: ...7 4 SPECIFICATIONS MACHINE DIMENSIONS Cab MACHINE DIMENSIONS...
Page 256: ...7 6 SPECIFICATIONS MACHINE DIMENSIONS Canopy...
Page 258: ...7 8 SPECIFICATIONS OPERATING RANGES OPERATING RANGES...
Page 260: ...7 10 MEMO...
Page 262: ...7 12 SPECIFICATIONS Long arm Cab LIFTING CAPACITIES...
Page 263: ...7 13 SPECIFICATIONS Long arm Cab LIFTING CAPACITIES...
Page 264: ...7 14 SPECIFICATIONS Long arm Canopy LIFTING CAPACITIES...
Page 265: ...7 15 SPECIFICATIONS LIFTING CAPACITIES Long arm Canopy...
Page 266: ...7 16 SPECIFICATIONS Standard arm Cab LIFTING CAPACITIES...
Page 267: ...7 17 SPECIFICATIONS Standard arm Cab LIFTING CAPACITIES...
Page 268: ...7 18 SPECIFICATIONS Standard arm Canopy LIFTING CAPACITIES...
Page 269: ...7 19 SPECIFICATIONS LIFTING CAPACITIES Standard arm Canopy...
Page 270: ...7 20...
Page 271: ...8 1 OPTIONS...
Page 279: ...8 9 MEMO...
Page 284: ...8 14 OPTIONS CAB OPTIONS CAB OPTIONS 1 Front guard 2 Emergency hammer 3 Front light Right...
Page 295: ...8 25...
Page 296: ...8 26...