Cx Series Operator’s Manual Service - 91
Procedures
Digging Chain Tension
Check every 10 hours. Adjust as needed.
Check
1. Move boom to horizontal position.
2. Measure distance (A) from bottom of boom
to chain:
• 19K chain: 1-1.5” (25-38mm)
• 35K chain: 1.5-2.0” (38-51mm)
Adjust
Adjustment Screw
1. Loosen jam nut on adjustment screw (shown).
2. To tighten digging chain, turn adjustment screw clockwise. To loosen, turn screw counterclockwise.
3. When proper tension is reached, tighten jam nut.
Grease Cylinder
1. Loosen plug on grease cylinder.
2. To tighten digging chain, add grease. To loosen, release grease.
3. When proper tension is reached, tighten plug.
NOTICE: Do not overtighten chain.
Overtightening will cause chain stretch, loss of
machine performance, and possible
premature chain failure.
Contents under pressure. Impact can cause death or
serious injury. Relieve pressure before opening.
To help avoid injury:
• Service digging boom grease cylinder only while standing on opposite side of boom.
• Cover connection with heavy cloth when relieving pressure in cylinder.
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