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Pre-Start Inspection and Operation
Hydraulic oil under pressure can penetrate body tissue causing serious injury and
possible death. When troubleshooting a hydraulic system for leaks, always use cardboard
or wood as a detector. DO NOT USE YOUR BARE HANDS. If you are injected with
hydraulic oil or any other fluids, immediately seek treatment by a doctor trained in the
treatment of penetrating fluid injuries.
• Visually inspect all of the hydraulic hoses, lines and fittings for signs of damage, wear or
leaking.
• If any signs of damage are visible, do not operate the machine until repairs have been
made.
• Some examples of common hydraulic hose damage are shown in Figure 3–3.
Figure 3–3 Hydraulic Hose Damage
1. End fittings damaged or leaking
2. Outer covering chafed or cut, and wire reinforcing is exposed
3. Hose shows signs of kinking or crushing
4. Outer covering ballooning
5. Check for loose or missing fasteners
• Inspect for any loose or missing bolts.
• Tighten or replace any missing bolts immediately.
6. While you are performing the daily maintenance, inspect the machine for any signs of
damage, such as missing or damaged components, cracked welds, etc.
7. Check the track assemblies to make sure that:
• The tracks are in good condition and are not showing any signs of wear.
• Track tension is properly set.
• Track drive motors are not leaking oil or hydraulic fluid.
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