29
30
Trouble
Cause of trouble
Remedy
• Supply pressure of compressed air, etc. is low.
• Increase the air supply pressure within the range of
the specifications of this product.
• Air pipes clogged.
• Remove foreign substances from the air pipes.
• Speed controller is shut or throttled too much.
• Open the speed controller.
• Air leaks inside the cylinder case.
• Replace O-rings of the piston.
• Torque required by a valve is too high.
• Check the valve.
• Position is wrong.
• Adjust the stopper bolt positioning.
• Torque required by a valve is too high.
• Check the valve.
• Speed controller is opened too much.
• Close the knob of the speed controller.
• Supply pressure of compressed air, etc. is high.
• Decrease the air supply pressure within the range of
the specifications of this product.
• Speed controller is closed too much.
• Open the knob of the speed controller.
• Supply pressure of compressed air, etc. is low.
• Increase the air supply pressure within the range of
the specifications of this product.
• Air pipe from compressor to this product is too long.
• Increase the diameter of the air pipe
• Deterioration of cover packing of output shaft or cover case. • Replace the consumables.
• Loosened bolts of side cover
• Retighten the bolts.
5-4 Single-acting type cylinder side cover assembly procedure
Assembly of Closing Side Stopper Bolt
(1) Replace the seal washer with a new one.
(2) Screw in the seal washer while turning it along the
thread of the hexagon stop screw to the 1/3th length
of the screw. [Fig. 40]
(3) Install the hexagon stop screw to the cover 2
⑦
.
(4) Fix the hexagon stop screw with a hexagonal wrench
and then tighten the hexagon nut with a wrench.
(5) Tighten the hexagon nut using the torque shown in
[Table 16]. Please refer to 4-3 Adjustment of valve
position for adjustment of the stopper bolt.
(1) Put the spring
㊷
in the case
①
, and install the side
cover using two "bolts for disassembly" where grease
has been applied [Fig. 41]
For T750S, do not use the "bolts for disassembly".
Instead, install the cover 1 and 2 using eight "hexagon
socket head cap screws" (four for each) mounted on the
product.
(2) Tighten the "bolts for disassembly" until the dimension A
in the figure becomes the distance where the "hexagon
socket head cap screws" which had been mounted to
the product can engage the case. And then install the
two "hexagon bolts" to the rest holes on the cover. (This
process is not required for T750S.)
(3) Tighten the four screws by turns. When "hexagon
socket head cap screws" mounted to the product are
fitted into 3 or 4 threads, replace the "bolts for disassem-
bly" with the "hexagon socket head cap screws" which
had been mounted to the product (This process is not
required for T750S.)
(4) Tighten the four "hexagon socket head cap screws"
diagonally and evenly. When the side cover is in perfect
contact with the case, tighten the screws using the
torque shown in [Table 13].
[Fig. 40]
[Fig. 41]
Spring
㊷
Hexagon socket head cap screw
Hexagon socket head cap screw
Type
Bolt Torque
T35
・
T85
・
T85S
M8
20 Nm
T200
・
T200S
M10
35 Nm
T380
・
T380S
M12
38 Nm
T750
・
T750S
M16
115 Nm
Table 16 Opening side stopper bolt fixing nut tightening torque
Cover 2
⑦
Hexagon nut
Seal washer
Hexagon stop screw
A
The cylinder unit does
not open/close valve.
The valve is not fully
opened or shut.
The valve opens/closes
too quickly.
The valve opens/closes
too slowly.
Air leaks.
5-5 Troubleshooting