19
7.
SUPPORTING STRUCTURE. Check for distortion, wear
and continued ability to support the winch and rated load.
8.
LABELS AND TAGS. Check for presence and legibility.
Replace if damaged or missing.
9.
ELECTRICAL COMPONENTS. Check for loose wires,
corrosion or other signs of deterioration.
10. DRIVE CHAIN. Check for excessive wear of chain drive
sprockets and for chain stretch. Refer to Roller Chain Chart
and Dwg. MHP0264.
(Dwg. MHP0264)
11. WIRE ROPE. In addition to the items in a frequent
inspection, inspect for the following:
a.
Buildup of dirt and corrosion. Clean if necessary.
b.
Loose or damaged end connection. Replace if loose or
damaged.
c.
Check wire rope anchor is secure.
d.
Changes in the size of the wire rope diameter.
Periodically measure the diameter of the wire rope
from crown-to-crown throughout the life of the wire
rope. The actual diameter should be recorded when the
wire rope is under equivalent loading and in the same
operating section. If the actual diameter of the wire
rope has decreased more than 1/64 in. (0.4 mm) a
through examination of the wire rope should be
conducted by an experienced inspector to determine
the suitability of the wire rope to remain in service.
Refer to Dwg. MHP0056.
(Dwg. MHP0056)
12. TORQUE LIMITER (optional feature). Inspect torque
limiter for presence of oil, grease, moisture, or corrosion on
the driving surfaces and for proper setting of the spring
load. Clean and adjust as required.
13. GUARD. Verify fasteners are tight and in good condition.
Ensure guard is not damaged and is in good condition.
Repair or replace if guard does not provide protection from
drive chain movement.
Winches Not in Regular Use
1.
A winch which has been idle for a period of one month or
more, but less than six months, shall be given an inspection
conforming with the requirements of “Frequent Inspection”
before being placed into service. Also, activate the manual
brake release lever while briefly operating the winch to
make sure the brake fully releases.
2.
A winch which has been idle for a period of over six
months shall be given a complete inspection conforming
with the requirements of “Periodic Inspection”.
3.
Standby winches shall be inspected at least semiannually in
accordance with the requirements of “Frequent Inspection”.
If abnormal operating conditions apply winches may
require a more frequent inspection.
Testing
Prior to initial use, all new, altered or repaired winches shall be
tested to ensure proper operation. Refer to “MAINTENANCE”
section for additional information.
Roller Chain Chart
Chain Part
Number
Chain Pitch
ASA Chain
Number
Number of
Rollers to
Measure
over
Chain Length
Chain Roller
Diameter
New
Discard
in
mm
in
mm
in
mm
in
mm
51313
0.75
19
60
16
12.469
317
12.594
320
0.468
11.9
50288
1.25
31.7
100
10
13.25
337
13.375
340
0.75
19
50397
1.5
38
120
8
12.875
327
13
330
0.875
22.2
50289
2
203
160
6
13.125
333
13.25
336
1.125
31.7
51550
(Double)
160-2
Summary of Contents for 10000B20
Page 13: ...12 DRUM SWITCH CONNECTION DIAGRAMS Dwg MHP0201...
Page 14: ...13 230 Volt Single Phase 60 Hz Dwg MHP0271 WIRING DIAGRAM...
Page 15: ...14 WIRING DIAGRAMS Dwg MHP1086...
Page 16: ...15 Dwg MHP1087 WIRING DIAGRAM 208 575 Volt Three Phase 50 or 60 Hz 22 Amp and smaller...
Page 17: ...16 WIRING DIAGRAM Dwg MHP1088 208 575 Volt Three Phase 50 or 60 Hz 22 Amp and larger...
