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10.0 Changing the Breaker Tool – [cont’d]
10.1.4 Removing the Breaker Tool
Fig. 10-2 Close Valves, Elevate, Support Tool
Fig. 10-3 Remove snap ring, rubber plugs and
covers, push out smaller pins
Fig. 10-4 Remove large retainer pins
Fig. 10-5 Support Weight of Tool & Remove
1. Position the breaker horizontally on a stable and
level surface. Elevate with blocks to access
retainer(s) from below.
2. Engage the hydraulic interlock. Stop the engine
and apply the parking brake.
3. Close shut off valves (Fig. 10-2)
4. Remove snap ring and rubber plugs.
5. Remove rubber covers from retainers.
6. Push the small retainers to the side until they
clear the larger retainers. [Fig. 10-3].
7. Remove large retainers and set aside. [Fig. 10-4]
8. Tool is free to be removed from Front Head [Fig.
10-5].
10.2 Tool Inspection / Prepare for Installation
1. Clean and inspect front head bushings, tool and
retainers. Check for uneven or excessive wear,
cracks or other damage.
2. Measure bushing and tool. Parts must be
replaced if worn beyond wear limit.
3. Inspect impact face of piston and thrust ring for
uneven or excessive wear, cracks or other
damage.
4. Grind any burrs and sharp edges smooth if found
on tool shank.
IMPORTANT
Gradually remove burrs to prevent over-heating
the steel.
IMPORTANT
Rapid wear to bushings and tool will result if the
following are not observed.
Pre-lubricate
the
breaker tool before inserting
into front head. (Fig. 10-6). This applies to
new breaker tools and tools that have been
wiped clean for inspection.
Prevent dirt and rocks from contaminating the
grease.
When applied regularly, Chisel Paste is a key
element in extending the service life of
bushings and tools.
Summary of Contents for AR110C
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