OPERATION
300 Series 09/10 Operation Section 4-25
© 2010 Alamo Group Inc.
OPERATION
Problem Possible Cause Remedy
Hydraulic Pump not shutting Using Open Center Valve Replace Valve or Conversion Plug
off on Closed Center System and Main Relief
Open Center Conversion Plug Replace with Closed Center Plug
Pumping over Relief Valve Replace with No Relief Plug
Oil leaking at hose Connection not tight Tighten connection
connection Did not use sealant Apply a good sealant to connection
Connection cracked from Replace cracked connection
over-tightening
Mismatched Connection threads Use correct connectors
or types.