2 hydrostatic pump troubleshooting – Echo CH6614 Owners Manual v.1 User Manual
Page 25
6 INCH CHIPPER
23
TROUBLESHOOTING
PROBlEM
PROBaBlE CauSE
SuggESTED SOluTIONS
Will not attain normal
feed rate
Engine not operating at correct speed.
Repair engine governor.
Control linkage damaged or binding.
Repair control linkage.
Bypass valve stuck partially open (Problem
in one direction only).
Repair bypass valve.
Remove foreign material from valve.
Will not feed when con-
trol arm is moved.
Control linkage damaged or not connected. Repair or reconnect control linkage.
Drive between engine and pump damaged. Repair drive (replace broken belt, repair
sheared key, repair spined coupling, etc.)
Pump low on fluid.
Refill reservoir. Purge air from transmis-
sion.
Feed rate is sluggish
under load.
loose drive belt between engine and pump. Tension drive belt (replace if necessary).
Pump low on fluid.
Refill reservoir. Purge air from transmission
if necessary.
Large amount of water in hydraulic fluid
(evaporates when hot, resulting in low fluid
level).
Drain fluid from reservoir and unit, replace
filter element, and refill with new fluid.
Hydraulic feed will not
pull in logs over 6" in
diameter.
Hydraulic system overloading.
Check relief pressure in system with a pres-
sure gauge rated to 2500 psi (system set by
factory at 1750 psi).
7.2 hYdrosTaTic PumP TroubleshooTing