Kitagawa YW Series, Инструкция по эксплуатации, Страница: 19 / 28

Proximlty switch [5] Adjusting plate [3]
Socket head
cap screw [4]
Plane washer [8]
Machine screw [1]
Cover [2]
Detectable
plate [7]
Casing [6]
17 18
Fig.6
If any malfunction occurs, return cylinder to our company for repair. If it is disassembled and reassembled at a place
other than our company, it may not function correctly as well as cause precision failure.
○Clean the suction strainer every 2 to 3 months.
○Replace the hydraulic oil about once every six months.
7-1. Maintenance and inspection of the cylinder
7-2. Maintenance and inspection of hydraulic unit
7 . Maintenance and Inspection
7-3. List of seals to use (Refer to Fig.3-4)
Table 7
23
24
25
26
27
28
29
30
31
32 O-ring
O-ring
O-ring
O-ring
O-ring
O-ring
O-ring
O-ring
O-ring
O-ring JIS B 2401 P10
-
-
JIS B 2401 P30
JIS B 2401 P50
JIS B 2401 P115
JIS B 2401 P120
JIS B 2401 G50
JIS B 2401 G120
JIS B 2401 G125
No. Part name Quantity
YW1220R
YW1225R
JIS B 2401 P10
JIS B 2401 P12
JIS B 2401 P15
JIS B 2401 P30
JIS B 2401 P50
JIS B 2401 P115
JIS B 2401 P120
JIS B 2401 G50
JIS B 2401 G120
JIS B 2401 G125
YW1220RE
YW1225RE
3
6
3
2
1
1
1
1
1
1
Check the points specified below again and take measures.
8-1. In the case of malfunction
In the case of malfunction, contact the distributor where you purchased the product or our branch office listed on the
back cover.
8-2. Where to contact in the case of malfunction
8 . Malfunction and Countermeasures
・If the chuck failed due to a seizure or breakage, remove the chuck from the machine, following the disassembly
steps in the chuck instruction manual, and then remove the cylinder by the reverse steps of "9. Attachment" after
page 19. When the jaws and covers cannot be removed due to a blockage of workpiece, do not disassemble
forcibly but please contact us or our agent.
・If these countermeasures do not correct the problem or improve the situation. immediately stop using the
machine. Continuous use of a broken product or a defective product may cause a serious accident by the
cylinder or the work flying out.
・Only experienced and trained personnel should do repairs and fix malfunctions. Repair of a malfunction by a
person who has never received instruction from an experienced person, the distributor or our company may
cause a serious accident.
Table 8
Defective Measures
Check that the hydraulic pressure is operating by the motion of the flexible hose, etc.
Check that there are no mistakes in piping.
Try operations when operation inability specified in the items of the trial operation.
Check that the pressure is as specified at the cylinder pipe inlet by attaching a pressure
gauge near the inlet of the cylinder.
Wearing of the O-ring inside is possible when the flow rate of the returning side pipe or
the drain is more than usual.
Check that the viscosity of the hydraulic oil is as designated.
Replenish the hydraulic oil inside the tank if it is low.
When the room temperature is high and the radiation effect of the tank is bad, control
the oil temperature using a cooler or a fan, etc.
Do not suck air.
Replenish the hydraulic oil inside the tank if it is low.
If a large amount of dirt is deposited inside the tank, or when the hydraulic oil is
deteriorated, the pump may be worn out abnormally, and it will be necessary to repair
the pump.
Provide a stream slope, without air pockets, and no back pressure must be applied.
Return the drainage onto the surface of the oil of the hydraulic unit .
Check that the air breather of the hydraulic unit is not clogged.
Piston
Operation
Inability
Cylinder
Thrust Force
Insufficiency
Temperature
Rise
Pump noise
Oil leakage
from oil seal
WARNING