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USER MANUAL
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Red Rooster Lifting Limited
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Nauta House, The Meadows, Oldmeldrum, Aberdeenshire, AB51 0EZ
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Tel: +44 (0) 1651 872101
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M01-AH27 REV2
SERVICE DATA
Maintenance chart
TMH-37.5T
NO.
DESCRIPTION
CHECK POINTS
STD DIMENSIONS & MAX FOR REPLACEMENT
250
Hook
Punch Marking
When the opening of the hook exceeds original length, replace
the parts.
Replace part when H reduces by 2 mm
Replace when measured value is more than limit. Repair or
replace hook that do not rotate lightly.
Make sure safety claw works rightly.
250
255
Hook
Hook End Piece
Replace both Hook and Hook end piece when L (play) exceeds
4.5mm.
275
Under Hook Holder
STD L
= 55mm
MAX L = 58mm
STD W = 89mm
MAX W = 91mm
Replace the one more than MAX limit.
Replace when it has cracks or critical damage as well.
Wear limit = 2mm
Replace the one more than wear limit Replace when it has
cracks or critical damage caused by chain
141
Load Chain
11 links length
D
1 link length
1 link length
STD
= 66mm
MAX = 69.3mm
Replace if exceeds MAX dimension.
11 links length
STD
= 726mm
MAX = 740.5mm
Replace if exceeds MAX dimension.
STD D = 23.5mm MIN D = 21.2mm
Replace if D is less than MIN dimension
Also replace if the link chain is severely damaged.
Measure the chain diameter (d) with point caliper.
d
d
