Sumitomo CYCLO Service Manual

5150
8. Daily Inspection and Maintenance
■
FB-3E, FB-4E (Indoor Type)
Code Part Name
1 Stationary core
2 Brake release
3
Manual release prevention
spacer
4 Brake release bolt
5 Spacer
6 Gap adjusting shims
7 Attachment bolt
8 Brake lining
9 Leaf spring
10 Boss
11 Shaft-retaining C-ring
12 Cover
13 Shaft-retaining C-ring
14 Fan
15 Fixed plate
16 Armature plate
17 Spring
18 Electromagnetic coil
19 Ball bearings
20 Motor shaft
21 Shock absorber
- Gap Inspection
(1)

Remove the brake release bolt [4] and the manual release prevention spacer [3].
(2)

Remove the cover [12].
(3)

Insert a gap gauge between the stationary core [1] and the armature plate [16]
and measure the gap. Measure in 3 locations around the circumference.
(4)

Adjustment is required if the gap value is near the limit.
(Gap adjustment shim thickness is approximately 0.45 – 0.55 mm. Adjustment cannot be made at a lower value.)
- Gap Adjustment
(1)

Remove the brake release bolt [4] and the manual release prevention spacer [3].
(2)

Remove the cover [12].
(3)

Remove the shaft-retaining C-ring [13] and the fan [14].
(4)

Loosen the attachment bolts [7] and remove the spacers [5], gap adjustment shims [6], attachment bolts [7] and xed plate [15]
as a set. When removing the attachment bolts [7] make certain not to omit the gap adjustment shims [6] or the shock absorber
[21].
(5)

The gap adjustment shims [6] have a thickness of 0.45 – 0.55 mm. Reduce the number of shims according to the wear
conditions, then reassemble the spacers [5], gap adjustment shims [6], attachment bolts [7] and xed plate [15] as a set.
(6)

Check the gap G, and readjust the shims if there is a large dierence between the gap and the required value.
(7)

Turn the power on and o to check brake action.
(8)

Attach the fan [14], shaft-retaining C-ring [13] and cover [12].
(9)

Finally, attach the brake release bolt [4] and the manual release prevention spacer [3].
Gap value G (mm)
Required value
(original value)
Limit value
0.25 – 0.35 0.85
1234567891011
Ｇ
12 13 14 15 16 17 18 19 20
X
Details for
X
21
Figure 8-12

Sumitomo CYCLO Specifications

General

Control Method	PWM (Pulse Width Modulation)
Cooling Method	Forced air cooling
Protection Features	Overcurrent Protection, Overvoltage Protection, Overtemperature Protection, Short Circuit Protection
Operating Temperature	0°C to 40°C
Humidity	20% to 90% (non-condensing)
Dimensions	Varies by model
Weight	Varies depending on model (Consult specific datasheet)
Storage Temperature	-20°C to +60°C