11.2 Care and Maintenance
Instructions
Refer to Sections 11.2.1 thru 11.2.13.
11.2.1 Checking Hydraulic Lines for
Leaks Before Starting Work
1. Visually check all hydraulic lines (tubes
and hoses) from the pump to the hydrau-
lic hammer and back into the tank.
2. Tighten any loose fasteners and hose
clamps.
3. Replace any damaged tubes or hoses.
11.2.2 Daily Checking for Cracks
Check the hammer box and mounting
bracket for cracks everyday.
11.2.3 Checking Wear to the Tool
Bushing
(Refer to Figure 11-1.)
Check the inside diameter of the tool bush-
ing every time the demolition tool is
changed and at the least, every 100 operat-
ing hours. Determine the allowable diame-
ter from the following
table. If the
diameter has increased to more than the
specified dimension, the tool bushing must
be replaced.
11.2.4 Checking Impact Face of Piston
for Wear
The impact face of the piston must be
checked each time the demolition tool is
changed or at least once a month. After the
demolition tool has been removed, proceed
as follows:
1. Shine a light on the piston’s impact sur-
face and check for dents or chipping.
2. Do not operate the Street Hammer if
dents or chips are evident.
3. Contact your authorized Allied service
center.
11.2.5 Checking Wear to the
Retainer Pin
Check the retainer pin every time the de-
molition tool is changed. If the retainer pin
is
worn, with sharp edges, notches or
dents, replace it. Carefully smooth off any
burrs on the retainer pin.
6-1-03
11-2
A
LLIED
Street Hammer
AS Series
Tool Bushing
Housing
Figure 11-1. Checking Wear Of Tool Bushing
Tool Bushing Maximum Allowable
Inside Diameter
Inches (mm)
AS 342
AS 352
AS 362
AS 370
AS 380
1.77
(45)
2.17
(55)
2.56
(65)
2.87
(73)
3.27
(83)
Summary of Contents for AS 342
Page 9: ...6 1 03 1 1 ALLIED Street Hammer AS Series ...
Page 61: ...ALLIED Street Hammer AS Series ...
Page 62: ......