A
B
Securing
Screw
Adjustment
Screw
(Dwg. MHP2683)
Refer to Dwg. MHP2683 on page 7.
1. Connect hoist to an air supply.
2. Release securing screw (102) and regulating screw (192) in order to increase or
decrease the SWL (increase SWL by tightening the regulating screw). Adjustment
must be made for an overload of 125% maximum of SWL.
3. Tighten securing screw.
4. Check hoist operation at rated load. If necessary repeat adjustment.
NOTICE
• Do not change factory settings unless hoist is tested and recertified at an
Ingersoll Rand authorized service center.
n
Load Chain Replacement
WARNING
• NEVER splice a load chain except when installing a new load chain by the
following method. Always discard link used to connect old chain with new.
Excessive chain wear cannot be detected by casual observation. Chain is case
hardened and once the case hardening is worn through, wear will progress rapidly
and the strength of the chain will be considerably reduced. Further, the chain will no
longer fit the chain sprocket properly, greatly increasing the chance of malfunction
and chain breakage.
One chain sprocket will outlast several chains if chain is replaced as recommended.
The use of a worn chain will cause the chain sprocket to wear rapidly.
If the chain is visibly damaged, examine chain sprocket and chain guide. Install a
new chain sprocket if the old one is visibly worn. Install a new guide if old one is
broken or distorted.
It is suggested that a short length of load chain be available when replacing hoist
load chain. Feeding a short length of load chain through bottom block assembly or
power head assembly prior to installing new load chain may simplify installation. Weld
on perpendicular load chain must always face away from chain sprocket. Refer to Dwg.
A.
Load Chain;
B.
Chain Wheel;
C.
Chain Weld To Outside On
Powered Chain Wheels;
D.
Standing Link.
NOTICE
• For ease of installation, do not remove old chain from hoist. Use the old chain
to feed new chain through hoist.
• The chain buffer (4) and limit stop washer (8) are not required on the non-
metallic chain container.
1. Hoist must be hung and connected to air supply. Reduce air pressure to 60 psi
(4 bar).
2. Remove chain container, if used.
3. Disconnect chain end from hoist body if attached.
4. Remove chain buffer (4) and limit stop washer (8).
5. Remove load hook.
6. Run hoist slowly in lifting direction until chain free end is approximately 2 ft
(60 cm) from hoist.
7. Using an abrasive wheel, cut a section from the last link as shown in Dwg.
A.
‘A‘ dimension;
B.
‘C‘ Link. Use a ‘C‘ link which is the
same size as the chain. Refer to Table 6 ‘‘C‘ Link Dimension’ on page 7.
A
B
‘C’ Link
‘A’ Dimension
(Dwg. MHP0817)
Table 6: ‘C‘ Link Dimension
Hoist Model
Chain Size
‘A‘ Dimension
mm
in.
mm
LC2A015S
8 x 24
0.4
10
LC2A030D
LC2A040S
13 x 36
0.6
16
LC2A060S
16 x 45
0.8
20
LC2A060Q
8 x 24
0.4
10
LC2A080D
13 x 36
0.6
16
LC2A120D
16 x 45
0.8
20
LC2A180T
LC2A250Q
CAUTION
• Do not distort link in any manner. Link must be able to pass over the chain
sprocket and idler wheels without binding.
8. Connect new chain to old chain by hooking end of new chain onto ‘C‘ link. Make
certain welds and links on new chain match positioning of welds and links on
chain being replaced.
9. Slowly run hoist in raise direction, running off old chain and reeving new chain
over the chain wheel.
The first link of new chain over the chain wheel must
be a standing link.
Refer to Dwg. MHP0472 on page 7.
Chain
Wheel
Chain Weld
To Outside On
Powered Chain
Wheels
Standing
Link
Load Chain
A
D
B
C
(Dwg. MHP0472)
10. Reinstall load hook, chain buffer and limit stop washer. Connect free end of chain
to hoist body.
WARNING
• Ensure chain does NOT become twisted during reeving. All chain welds must
align while chain is hanging free.
n
Determining Twisted, Kinked or ‘Capsized‘ Load Chain
Ensure chain is not twisted, kinked or ‘capsized‘ during installation. Refer to Dwg.
A.
Appearance of Chain Not Twisted;
B.
Appearance of Chain
Twisted.
A
Appearance of
Chain Not Twisted
Appearance of
Chain Twisted
B
(Dwg. MHP0020)
Form MHD56279 Edition 4
7
