MTD DUERR 424/LCD/22 - Page 16

HYDRAULIC TRC UBLE SHOOTING GUIDE
Problem
Cylinder rod wjll not
move
Slow cylinder shaft
speed while
extending and
retracting
Engine runs but
wood will not split,
or wood splits too
slowly
Engine stalls during
splitting
Engine will not turn
or stalls under low
load conditions
Leaking pump shaft
seal
Probable Cau!ie(s)
A Broken driveshaft
B Loose shaft coupling
C Gear sections damac ed
D Damaged relief valve
E Hydraulic lines block 3d
F Too little oil to pump
G Damaged directional valve
H Blocked directional v jIve
A Gear sections damac ed
B Excessive pump inie vacuum
C Slow engine speed
D Damaged relief valve
E Too little oil to pump
F Air in oil
G Directional valve leaking internally
H Internally damaged cylinder
A Small gear section d imaged
B Pump check valve leaking
C Excessive pump inIe: vacuum
D Low relief valve setti ig
E Too little oil to pump
F Air in oil
G Directional valve leaking internally
H Overloaded cylinder
I Internally damaged cylinder
A Low horsepower/wec k engine
B High relief valve sett ng
C High unloading valve setting
D Overloaded cylinder
A Engine/pump misalicnment
B Frozen or seized pump
C Low horsepower/wee k engine
D Hydraulic lines blocked
E Blocked directional \ alve
A Broken driveshaft
B Engine/pump misalic nment
C Gear sections damaijed
D Poorly positioned sh ift seal
E Plugged oil breather
Corrective Action
A Return pump for authorized repair
B Correct engine/pump alignment as necessary
C Return pump for authorized repair
D Return directional valve for authorized repair
E Flush and clean hydraulic system
F Add oil to reservoir
G Return directional valve for authorized repair
H Flush and clean hydraulic system; return
directional valve for authorized repair
A Return pump for authorized repair
B Make certain pump inlet hoses are clear
and unblocked—use short, large
diameter inlet hoses
C Return engine for authorized repair
D Return directional valve for authorized repair
E Add oil to reservoir
F Add oil, clean reservoir, make certain oil
return tube is below oil level
G Return directional valve for authorized repair
H Return cylinder for authorized repair
A Return pump for authorized repair
B Return pump for authorized repair
C Make certain pump inlet hoses are
clear and unblocked; use short, large
diameter inlet hoses
D Adjust valve while using pressure gauge*
E Add oil to reservoir
F Add oil, clean reservoir, make certain oil
return tube is below oil level
G Return directional valve for authorized repair
H Do not attempt to split wood against the grain
1 Return cylinder for authorized repair
A Return engine for authorized repair
B Adjust valve while using pressure gauge*
C Adjust valve while using pressure gauge*
D Do not attempt to split wood against the grain
A Correct alignment as necessary
B Return pump for authorized repair
C Return engine for authorized repair
D Flush and clean hydraulic system
E Flush and clean hydraulic system; return
directional valve for authorized repair
A Return pump for authorized repair
B Correct alignment as necessary
C Return pump for authorized repair
D Return pump for authorized repair
E Make certain reservoir is properly vented
‘Should be performed by an authorized service dealer only.
16