Release valve may not be tightly closed.
Jack may be low on oil.
Remove filler plug and fill reservoir with clean hydraulic jack oil.
Reservoir may be overfilled.
Remove filler plug and drain excess oil.
Jack may be air-bound.
Open the release valve and pump the handle several times.
Close the release valve and operate. Repeat if necessary.
Valves may not be closed or have foreign matter present. To flush valves, lower
the saddle and close the release valve. Manually lift saddle several inches, open
the release valve and then force the saddle to lower as rapidly as possible.
PROBLEM
TROUBLE SHOOTING CHECKLIST
Ja
ck
w
on
’t
lif
t l
oa
d
or
fu
ll r
at
ed
ca
pa
cit
y
Ja
ck
lo
we
rs
u
nd
er
lo
ad
Oi
l le
ak
in
g
fro
m
fil
le
r p
lu
g
Pu
m
p
fe
el
s s
po
ng
y
Ha
nd
le
ra
ise
s o
r f
lie
s
ba
ck
u
nd
er
lo
ad
Ja
ck
w
ill
no
t l
ift
fu
ll
he
ig
ht
