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Maintenance
CAUTION
If you leave the key in the ignition switch, someone could accidently start the engine and
seriously injure you or other bystanders.
Remove the key from the ignition before you do any maintenance.
Recommended Maintenance Schedule(s)
Maintenance Service
Interval
Before each use or daily
Every 40 hours
Every 100 hours
Before storage
Greasing the Bit
Service Interval: Before each use or daily—Grease
the bit. (Grease every 3 hours of
operation and after every washing.)
Grease type: Chisel paste
1.
Park the machine on a level surface and engage
the parking brake (if applicable).
2.
Tilt the breaker so that it is vertical and lower it
to the ground to push the bit up into the breaker
until it stops.
Important:
If you do not push the bit up into
the breaker before greasing, grease may fill
the space between the top of the bit and the
breaker piston. This causes the piston to
pressurize the grease and damage the seal
when you next use the breaker.
3.
Shut off the engine and remove the key.
4.
Clean the grease fitting with a rag.
5.
Connect a grease gun to the fitting.
Maintenance Procedure
• Grease the bit. (Grease every 3 hours of operation and after every washing.)
• Check the hydraulic lines for leaks, loose fittings, kinked lines, loose mounting
supports, wear, weather, and chemical deterioration.
• Inspect and tighten all fasteners.
• Inspect the mounting pins, holes, bit bushing, and retainer pins for looseness or
wear. Reseat or replace as necessary.
• Measure the bit length when pressed into the bit holder. Replace the bit if the
measured length is less than 200 mm (7.8 inches).
• Check the nitrogen charge in the accumulator.
• Paint chipped surfaces.
6.
Pump grease into the fitting until either grease
begins to ooze out of the lower bushing and
retaining pin or pumping the grease gun
becomes difficult.
7.
Wipe up any excess grease.
12
Figure 17
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