
10.0 OPERATOR TROUBLESHOOTING CHART (cont’)
6-1-03
10-2
A
LLIED
Street Hammer
AS Series
Problem
Cause
Remedy
Operating pressure is too low.
Relief valve set too low.
Reset pressure, check dynami-
cally.
Damaged relief cartridge or seals.
Inspect and repair or replace.
Insufficient pump delivery (low flow
means low pressure at the ham-
mer).
Check pump with flow meter
(check dynamic pressure).
Flow control not set properly.
Set flow control.
Return line pressure too high.
Failed hoses or blockage at crimp
on fitting.
Replace hoses that are frayed or
damaged.
Heat exchanger and return filters.
Change filter and repair or replace
plugged heat exchanger.
Return line connected to valve
bank.
Hammer return must bypass valve
bank.
Hoses or fittings too small for in-
stallation.
Always use proper hose and fitting
sizes.
Operating pressure too high.
Adjust as needed.
Operating temperature too high.
Excessive leakage through ham-
mer.
Damaged piston.
Piston or inner cylinder body were
honed-excessive clearance.
Ambient temperature is high.
A heat exchanger may be neces-
sary — check with carrier manu-
facturer.
Tool binding in bushing(s).
Repair or replace as needed.
Check for proper lubrication.
Return line pressure is too high.
Locate and correct problem.
Damaged seals in cylinder
housing top.
Replace damaged seals.
Oil leaks at bottom of cylinder
housing.
Damaged seals in inner cylinder
body bottom.
Replace damaged seals.
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: ......