Chapter 2
Inspection
Periodic Inspection (continued)
■ Driving Mechanism
Item
Bearing
Load Gear,
Gear B,
Pinion
2
Friction
Clutch
Friction
Clutch with
Mechanical
Brake
80
Check method
• Check visually and rotate the
Bearing by hand.
• Check the operating hours
with the CH Meter.
• Disassemble the electric
chain hoist and check the
arrowed portion.
• Check the operating hours
using the CH Meter.
• Check visually
• Check the operating hours
using the CH Meter.
• Check visually.
• Check the operating hours
using the CH Meter.
Criteria
• To have no harmful deficiency such as
apparent abrasion, flaw and damage. To rotate
smoothly.
• The operating hours must not exceed the guidelines
for replacement. (Refer to Guidelines on Bearing
Replacement (P92).)
• To have no apparent abrasion
• To have no damage
• Operating hours not to exceed the guidelines
for replacement
(Refer to "Guidelines on Gear Parts
Replacement" (P91).)
Spline
Motor shaft
Rotor
• To have no apparent abrasion, deformation,
flaw and damage.
• Pawl must have no apparent deformation and
abrasion.
DANGER
• Do not adjust or disassemble
the Friction Clutch.
Adjusting and disassembling
the Friction Clutch may result in
Prohibited
death or serious injury.
• Operating hours not to exceed the guidelines
for replacement
(Refer to "Guidelines on Gear Parts
Replacement" (P91).)
• To have no apparent abrasion, deformation,
flaw and damage
• Pawl must have no apparent deformation and
abrasion.
DANGER
• Do not adjust or disassemble the
Friction Clutch with Mechanical
Brake.
Adjusting and disassembling
Prohibited
the Friction Clutch with
Mechanical Brake may result in
death or serious injury.
• Operating hours not to exceed the guidelines
for replacement (Refer to "Guidelines on Gear Parts
Replacement" (P91).)
When failed
Replace the Bearing.
• Replace the Gear.
• Replace the Pinion.
• Replace the oil at the
same time.
Replace the Friction
Clutch.
Replace the Pawl and
the Friction Clutch
with Mechanical
Brake.