54
6.3
Hoist Motor Brake
6.3.1
To keep your hoist working in optimum condition and prevent possible down time, it is recommended to check
your motor brake at regular intervals. Intervals must be adapted in accordance with the application.
6.3.2
Before proceeding, ensure that the electrical supply for the hoist or trolley has been
de-energized (disconnected). Lock out and tag out in accordance with ANSI Z244.1 “Personnel
Protection –Lockout/Tagout of Energy Sources”. The hoist must be unloaded and the bottom hook block
set down.
6.3.3
Motor Brake Check:
1)
Remove fan cover (1). See
Figure 6-1
.
2)
Remove plug (2). See
Figure 6-1
.
3)
Measure air gap (S) with feeler gauge (F). When measuring, ensure that the feeler gauge is pushed
in at least as far as depth "a" and does not catch on shoulder. See
Table 5-8
for max. permissible air
gap (S). See
Figure 6-2
.
4)
The brake is not adjustable. If the max. permissible air gap (S) has been reached, the brake disc
(brake rotor)must be replaced. See
Figure 6-2
.
6.3.4
Brake Rotor Replacement - See
Figure 6-1
.
1)
Remove fan cover (1).
2)
Pull off fan wheel (3), remove feather key
3)
Disconnect brake
4)
Unscrew fixing screws (4)
5)
Remove magnet piece (5) together with armature disc (6)
6)
Remove brake disc (brake rotor) (7)
7)
Clean brake (wear a dust protection mask)
8)
Check friction surfaces for wear
9)
Push new brake disc (brake rotor) (7) onto hub (8) and check radial play. If there is increased play in
the gearing between brake disc (7) and hub (8) the hub (8) must be pulled off the motor shaft and
replaced.
10)
Danger of damage - Always contact the manufacturer before removing the hub (8).
Содержание RHN02D-20A-20D Series
Страница 55: ...55 Figure 6 1 Figure 6 2...
Страница 69: ...69 This Page Intentionally Left Blank...
Страница 72: ...72 9 1 Hoist Motor Parts RHN02 RHN03 RHN05 RHN08 RHN10 RHN15 RHN20 Figure 9 1 1 Hoist Motor Parts Dual Speed 50...
Страница 74: ...74 9 2 Gearing Parts RHN02 RHN03 RHN05 RHN08 RHN10 Figure 9 2 1 Gearing Parts 10...
Страница 76: ...76 9 2 Gearing Parts RHN15 RHN20 Figure 9 2 2 Gearing Parts 25...
Страница 78: ...78 9 3 Rope Drum Parts RHN02 RHN03 RHN05 RHN08 RHN10 Figure 9 3 1 Rope Drum Parts...
Страница 80: ...80 9 3 Rope Drum Parts RHN15 RHN20 Figure 9 3 2 Rope Drum Parts...
Страница 82: ...82 9 4 Rope Suspension Parts RHN02 RHN03 RHN05 RHN08 RHN10 Figure 9 4 1 Rope Suspension Parts Deck Base Mounted...
Страница 84: ...84 9 4 Rope Suspension Parts RHN02 RHN03 RHN05 RHN08 RHN10 Figure 9 4 2 Rope Suspension Parts Trolley...
Страница 86: ...86 9 4 Rope Suspension Parts RHN15U RHN15D RHN20D Figure 9 4 3 Rope Suspension Parts...
Страница 88: ...88 9 5 Hook Block Parts RHN02 RHN03 RHN05 RHN08 RHN10 Figure 9 5 1 Hook Parts 20...
Страница 90: ...90 9 5 Hook Block Parts RHN15D RHN20D Figure 9 5 2 Hook Parts...
Страница 92: ...92 9 5 Hook Block Parts RHN15U Figure 9 5 3 Hook Parts...
Страница 94: ...94 9 6 Terminal Box Parts RHN02 RHN03 RHN05 RHN08 RHN10 RHN15 RHN20 Figure 9 6 1 Terminal Box Parts...
Страница 104: ...104 9 6 Terminal Box Parts RHN15D RHN20D Figure 9 6 6 Terminal Box Layout 460V 575V...
Страница 106: ...106 9 7 Trolley Parts RHN02 RHN03 RHN05 RHN08 RHN10 RHN15 Figure 9 7 1 Trolley Parts...
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