130 MAINTENA NCE AND ADJUSTMENT
j
A. Oil Hole
•
Protect the piston rod end with a heavy cloth to
prevent damage.
•
Pump the pisto
n rod to full stroke by pushing down
the cylinder unit.
•
Check the piston rod for smooth operation.
•
If the piston rod operation is not smooth, check the
piston rod for bend or damage.
•
Hold the cylinder unit on level ground while piston
rod is f ull
stroked by your hand.
•
Release the piston rod then check the piston rod
extend to maximum.
•
Ifthepistonroddoesnotextendtomaximum,
bleed the air in the cylinder unit again.
NOTICE
Be careful not to bend or damage the piston
rod w he
n the piston rod is stroked.
•
Wipe the oil off compl
etely from t he cylinder u nit.
•
Compress the piston rod to 200 ∼ 250 mm (7.87 ∼
9.84 in.) and hold the cylinder unit upright position
for 10 minutes.
A. Cylinder Unit
B. Piston Rod
C. 200 ∼ 250 mm (7
.87 ∼ 9.84 in.)
•
There should be no oil leak from the cylinder unit.
•
If oil leaks fr
om the cylinder unit, replace the cylin-
der unit assembly.
•
Hold the cylinder unit on level ground and release
the piston rod then check the piston rod extend to
maximum.
•
Tighten the locknut fully and measure 10 ∼ 12 mm
(0.39 ∼ 0.47 in.).