Allied Construction Products, LLC www.alliedcp.com
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7.0 Care and Maintenance – [cont’d]
7.2 Equipment Maintenance Log
The importance of regular maintenance along with
frequent inspections and detailed record keeping
cannot be overemphasized. Keep an updated log of
equipment maintenance. Records of services
performed and any repair are helpful if warranty
coverage is ever in question. Records should include:
Date of service and hour meter reading
Details of the service, maintenance or repair
performed.
Names of persons performing the service,
maintenance or repair
Copy of the purchase order or invoice, including
part numbers used in the repair
7.3.1 Housing Box Inspection – Daily Start of Shift
Inspect the housing box for cracks and wear.
Frequent raking of material will lead to a higher rate
of wear. Build-up worn areas and promptly repair
cracks to prevent further spreading. Neglecting or
delaying repairs will lead to further damage and
increased repair costs.
7.3.2 Vibration Dampening Inspection
A system of buffers, dampers and guide plates help
minimize vibrations to the carrier and unwanted noise
by isolating the breaker from the housing box.
Fig. 7-1 Buffers, Wear Plates
Guide plates must be kept in good condition, so that
the breaker is held tight with minimal movement.
Made from a dense plastic composite that is abrasion
resistant, these are wear items that deteriorate with
use. To help minimize wear, follow correct operating
techniques and keep dust plugs and covers in place.
Fig. 7-2 Keep Dust Plugs and Covers In Place
While the breaker is in use, the operator must
actively monitor for excessive movement. The
breaker must never be allowed to contact the
housing. To avoid damage, worn isolators must be
replaced immediately.
Table 7.1 Wear Limits for Buffers
Units in
inches
[mm]
A-Min B-Min C-Min D-Min
AR110C
3.42
[87]
.312
[8]
.55
[14]
2.44
[62]
AR120B
4.60
[117]
.312
[8]
.55
[14]
3.22
[82]
AR130B
4.37
[111]
.312
[8]
.55
[14]
3.22
[82]
AR140B
5.19
[132]
.312
[8]
.55
[14]
3.22
[82]
7.4 Front Head Inspection – Every 2 Hours
Visually inspect the exposed surfaces of the tool,
bushing and other areas of the front head each time
the tool is re-lubricated.
Summary of Contents for AR110C
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