Greenlee / A Textron Company
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
22
HPS513 • HCS816 • HCS820 Chain Saws
Troubleshooting
(cont’d)
Problem
Probable Cause
Probable Remedy
Chain does not cut.
Chain dull.
Remove chain and sharpen to chain
manufacturer’s specifications or
replace with a sharp chain.
Too much tension on the chain.
Adjust chain tension. Refer to “Saw
Chain and Bar Maintenance.”
Automatic oiler not lubricating
chain and bar.
Refer to “Checking and Setting the
Automatic Chain Oiler.”
Chain installed backward.
Remove chain and install correctly.
Guide bar worn.
Inspect guide bar rails for wear.
Refer to “Saw Chain and Bar
Maintenance.” If excessively worn,
replace guide bar.
Tool feels hot.
Hydraulic fluid level low.
Check the fluid level. Check system
for leaks.
Incorrect hydraulic fluid viscosity.
Use hydraulic fluid with the
correct viscosity. Refer to the
“Specifications” section.
Hydraulic fluid dirty.
Refer to the power source owner’s
manual for procedure to replace
hydraulic oil and filter.
Chain is difficult to rotate manually.
Hydraulic pressure trapped in saw
motor.
Release hydraulic pressure by using
proper hose disconnection proce-
dure. Refer to “Hose Connection” in
this manual.
Chain and bar improperly adjusted.
Refer to “Adjusting Chain Tension”
under “Saw Chain and Bar
Maintenance” in this manual.
Chain drive links damaged.
Remove chain and inspect drive
links.
Bar groove damaged.
Remove chain and inspect bar
groove.
