TOHO B Series User Manual

space (1mm), then the working space should be adjusted over again, and if
abrasion of friction disc near to the aluminum core, the brake disc should be
replace in time, otherwise, the brake device can be damaged.
c) Gearing: cleaned and grease lubricated (i.e.no.1) every year.
d) Bearing: cleaned and grease lubricated (i.e.no.1) every year.
e) Hooks: to be checked periodically for the deformation and abrasion measurement,
if t
he wear or deformation measures up 10% of the standard sizes (ref to illustrated
figure), please change the hooks.
f) Hooks: to be checked periodically for the deformation and abrasion measurement,
if t
he wear or deformation measures up 10% of the standard sizes (ref to illustrated
figure), please change the hooks
3) Repairing warning
Once the hoist damaged or can not be operated normally, shall consult with local supplier
or
the designated maintenance, users are not allowed to open or repair the hoist by
themselves.
4) Illustration figure for chain inspection
If chain is abraded over the limit value, which must be replaced with a new one.
5) Illustration figure for hook inspection
If the size
o
ne.
“b” and “c” is smaller than the 90% of the standard size, please replace with new
Dia. of chain
(d)
Wearing Limit value
(d)
Measure links
standard
value
(p)
Wearing Limit
value (p)
5mm 4.5mm 5 75.5mm 77.8mm
7.1mm 6.4mm 5 106mm 109.2mm
4
B (mm) C (mm)
capacity (t)
Normal Size Abnormal Size Normal Size Abnormal Size
0.5 19 17 26 23.4
1 19.5 17.5 27 24.3
2 22 19.8 32 28.8
3 24 21.6 35 31.5
8 Malfunctions and settlement
NO. Malfunctions Causes Settlements
Wires unconnected or
loose result power off
Check and fasten all the
wire connection points.
1
The hoist refuse to
operate under switch on
Electrical parts damaged Replace the damaged part
2
Hoist refuse to
operate, and the
braking parts has
wuwu bee noise.
Voltage is too low.
Operate under rated
vol
tage.
Dust or oil on brake disc Clean the disc
3
After switch off, the
load
drop while
braked
Severe abrasion of disc Replace the disc
4
Hoist still operate
while t
he control
button released
The conductor damaged Replace conductor
The chain no lubricated
properly
Lubricate chain by oil or
grease
5
Chain run with
str
ange noise
The chain or sprocket
whe
el worn
Change with new ones.
The earth connection is
not ok
Ensure good earth
connection
High humidity in the air Improve the environment
6
Leakage of
elec
tricity
Dust on the electrical
parts
Keep the parts clear to dust
5
.

TOHO B Series Specifications

General

Brand	TOHO
Model	B Series
Category	Chain Hoists
Language	English