17
NOTE
The brake has no air gap adjustment. If the air gap exceeds 0.5 mm, the brake pad needs changing.
3.2.4 Load chain
The load chain should be periodically checked for abrasion. The check is based upon three measurements: see accepted wear factors (table 3-3)
and measurement points (figure 3-1).
CAUTION !
The chain should be replaced when the measurements exceed or fall short of those defined in the table. The chain wheel and chain
guide should be checked for wear at the same time and, where necessary, be replaced. Only use original chains. The chain links
should not be welded.
The new chain is installed in accordance with chapter 2.2.2.
NOTE
For ease of installation, the old chain and new chain can be connected by a piece of flexible wire.
Table 3-3 Wear factors load chain
TS 250
TS 500
TS 1000
TS 1600
TS 2000/2500
Chain type d x t
[mm]
4 x 12.3
5 x 15.3
7 x 22
9 x 27
10 x 28
Tolerances in accordance with: DIN 685, part 5
DIN EN 818-7
1. Measurement over 11 chain links; a = 11t
[mm]
138.0
171.6
246.8
302.9
314.2
2. Measurement over 1 chain link 1t
[mm]
12.9 16.0 23.1 28.35 29.4
3. Measurement of the chain link diameter
dm
=
2
d2
d1
+
; (dm min. = 0.9 x d)
[mm]
3.6
4.5
6.3
8.1
9.0
Figure 3-1
3.2.5 Limit stop assembly
CAUTION !
A damaged buffer plate, underneath the housing, must be replaced.
Screw connections at the limit stop and shims or lower sheaves should be checked and, where necessary, tightened to the right torque. For
coefficient data see chapter 3.2.8.
3.2.6 Gearbox
The gearing has continual lubrication.
Lubricant ........................ : Strub N1424
Can be mixed and is compatible with all other similar brand
name grease (DIN 51502: GP OM-20)
Lubricant quantity .......... : TS 250/500......................: 0.4 kg
TS 1000 ...........................: 1.0 kg
TS 1600/2000/2500 ........: 1.8 kg
3.2.7 Slip clutch
The slip clutch is set at 125% at the factory and can be relied on to prevent the chain hoist from being overloaded (the force limiting factor
according to DIN EN 14492-2 is
DAL
= 1.4). The coating is wear resistant.
CAUTION !
Adjustment and testing of the slip clutch may only be carried out by authorized personnel and must be recorded in the log book.
d
d1
d2
t
a = 11t
b
