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HYDRAULIC TROUBLE SHOOTING GUIDE
_,,,,i ,,,, m i ==
Problem
, ,,,,
Cylinder rod will 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
sphtting
Engine will not turn
or stalJs under tow
toad conditions
Leaking pump shaft
seal
N IIIIIIIIIIIIIIII / I I
,,,,,,u,,_.................
Probable Cause(s)
A Broken driveshaft
B Loose shaft coupling
C Gear sections damaged
D Damaged relief valve
E Hydraulic lines blocked
F Too little oil to pump
G Damaged directional valve
H Blocked directional valve
A Gear sections damaged
B Excessive pump inlet vacuum
C
D
E
F
G
H
A
B
C
Slow engine speed
Damaged relief valve
Too little oil to pump
Air in oi_
Directional valve leaking internally
.l.nterna.!tydamaged, cylinder
Small gear section damaged
Pump check valve leaking
Excessive pump inlet vacuum
D Low relief valve setting
E Too little oil to pump
F Air in oil
G DirectionaJ valve leaking internally
H Overloaded cylinder
I internally damaged cylinder
A L=owhorsepower!weak engine
B Overloaded cylinder
A Engine/pump misalignment
B Frozen or seized pump
C Low horsepowerlweak engine
_ Hydraulic lines blocked
Blocked directional valve
A Broken driveshaft
B Engine/pump misalignment
C Gear sections damaged
D Poody positioned shaft seal
E Plugged oil breather
Corrective Action
A Return unitfor authorized repair
B Correct engine/pump alignment as necessary
C Return unit for authorized repair
D Retum directional valve for authorized repair
E Flush and clean hydraulic system
F Add oil to reservoir
G Return unit for authorized repair
H Flush and clean hydraulic system; return
unit for authorized repair
A Return unit for authorized repair
B Make certain pump inlet hoses are clear
and unblocked--use short, large
diameter inlet hoses
C Return unit for authorized repair
D Return unit for authorized repair
E Add oil to reservoir
F Add oil, clean reservoir, make certain oil
return tube is below oil level
G Return unit for authorized repair
H Return unit for authorized repair
,,,,,,,,,,,,,,,, _ ....
A Return unit for authorized repair
B Return unit 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 unit for authorized repair
H Do not attempt to split wood against the grain
I Return unit for authorized repair
A Retum unit for authodzed repair
B uo not attempt to split wood against the grain
A Correct alignment as necessary
B Return unit for authorized repair
C Return unit for authorized repair
D Flush and clean hydraulic system
E Flush and clean hydraulic system; return
unit for authorized repair
A Return unit for authorized repair
B Correct alignment as necessary
C Return unit for authorized repa=r
D Return unit forauthorized repair
E Make certain reservoir is properly vented
*Shouldbe performedbyanauthorized SEARS Service Center only.
19
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