80
Periodic Inspection (continued)
Chapter 2 Inspection
Item Check method Criteria When failed
Bearing • Check visually and rotate
the Bearing by hand.
• Check the operating hours
with the CH Meter.
• Tohavenoharmfuldeciencysuchasapparent
abrasion,awanddamage.Torotatesmoothly.
• The operating hours must not exceed
the guidelines for replacement. (Refer to
Guidelines on Bearing Replacement (P92).)
Replace the Bearing.
Load Gear,
Gear B,
Pinion
• Disassemble the electric
chain hoist and check the
arrowed portion.
• Check the operating hours
using the CH Meter.
Spline
Motor shaft
Rotor
• 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).)
• Replace the Gear.
• Replace the Pinion.
• Replace the oil at
the same time.
Friction
Clutch
• Check visually
• Check the operating hours
using the CH Meter.
• To have no apparent abrasion, deformation,
awanddamage.
• Pawl must have no apparent deformation and abrasion.
• Do not adjust or disassemble
the Friction Clutch.
Adjusting and disassembling the
Friction Clutch may result in death or
serious injury.
Prohibited
DANGER
• Operating hours not to exceed the guidelines
for replacement
(Refer to “Guidelines on Gear Parts
Replacement”(P91).)
Replace the Friction
Clutch.
Friction
Clutch with
Mechanical
Brake
• Check visually.
• Check the operating hours
using the CH Meter.
• To have no apparent abrasion, deformation,
awanddamage
• Pawl must have no apparent deformation and abrasion.
• Do not adjust or disassemble
the Friction Clutch with
Mechanical Brake.
Adjusting and disassembling the
Friction Clutch with Mechanical Brake
may result in death or serious injury.
Prohibited
DANGER
• Operating hours not to exceed the guidelines
for replacement
(Referto“GuidelinesonGearPartsReplacement”(P91).)
Replace the Pawl and
the Friction Clutch with
Mechanical Brake.
■
Driving Mechanism
Electric Chain Hoist (ER2) Periodic Inspection Periodic Inspection
2