Troubleshooting - Greenlee LHFS-210001 Operation, Service And Parts Instruction Manual

Troubleshooting (cont'd)
PROBLEM
Tool control valve sticks or
works hard.
Tool operates backwards.
Tool operates, but blade does
not cut.
Extension assembly loose.
Greenlee Textron / Subsidiary of Textron Inc.
Orchard and Shade Tree Pruner
PROBABLE CAUSE
Check for dirt or gummy deposits.
Misalignment or binding of control
linkage.
Valve components worn or damaged.
Hydraulic flow reversed to tool.
Hydraulic pressure and return lines
connected to opposite tool ports.
Tool components assembled
incorrectly.
Cutter blade loose.
Cutter blade not closing properly.
Cutter blade dull.
Loose extension connector nut.
16
POSSIBLE REMEDY
Clean components.
Correct alignment. Lubricate linkage
joints. Replace damaged components.
Disassemble valve and replace worn
or damaged components.
Reverse flow to tool. Check for valve
in system that has reversed flow.
Check hoses for proper flow.
Disconnect hoses. Reverse couplers.
Reconnect hoses to proper tool ports.
Disassemble tool. Reassemble
correctly.
Tighten cutter blade nut and bolt
securely. See Blade and Hook
Maintenance - Tension Adjustment.
Re-adjust blade closure. See Blade
and Hook Maintenance - Closure
Adjustment.
Remove blade and sharpen, or install
a sharp, new blade.
Tighten extension connector nut.
4455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070