84
Periodic Inspection (continued)
Chapter 2 Inspection
Item Check method Criteria When failed
Wheel • Check visually.
• Measure dimensions D and
d with vernier caliper.
d
D
Wheel for I · H beam (0.5 to 5 t)Wheel for I · H beam (0.5 to 5 t)
Measure the outer diameter
with vernier caliper.
• To have no considerable deformation
and damage
• Abrasion Limit of Wheel
(Do not fall under the limit.)
Capacity (t) Beam type
D (mm) d (mm)
Standard Limit Standard Limit
125, 250, 500kg I · H 95 91 91.5 87.5
1 I · H 95 91 91.5 87.5
1.5, 2 I · H 110 105 106 101
2.5, 3 I · H 125 118 121 114
5 I · H 140 132 135 127
Replace the Wheel.
Side Roller • Check visually.
• Measure outer diameter of
the worn part with vernier
caliper.
Outer diameter
•
To have no considerable deformation and damage
• Abrasion Limit of Side Roller
(Do not fall under the limit.)
Capacity (t)
Outer diameter (mm)
Standard Limit
125, 250, 500kg 38 37
1 38 37
1.5, 2 43 42
2.5, 3 43 42
5 55 54
Replace the Side
Roller.
■
Motorized Trolley (MR2) Periodic Inspection
■
Brake
Item Check method Criteria When failed
Appearance • Disassemble the Brake and
check it visually.
• Tohavenodeformation,awanddamageon
the Brake Drum and the Motor Cover.
Replace the Part.
• To have no deformation and damage on the
Brake Spring.
Replace the Brake
Spring.
Abrasion of
Brake Pad
• Disassemble the Brake and
measure the abrasion.
Trolley Brake Service Limit
(Do not fall under the limit.)
Speed Dimension Standard Limit
Single Speed
B
32.5 31.0
Dual Speed (VFD)
Dual Speed
(500V Class)
B' 36.8 36.3
Replace the Motor
Cover.
Brake Pad
Motor Cover
Brake Drum
B’
B
■
Body size Components
Motorized Trolley (MR2) Periodic Inspection Periodic Inspection
2
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