Yale
Electric Chain Hoist - CPV/F
®
11
www.yaleproducts.com
3. Fitting the new chain.
Cut the second to last link open on the loose end of the load
chain to form a “C”. Remove the last link and connect the new
chain. The new chain must be fitted so that the welds on the
standing links face towards the chain guide in the housing.
Operate the hoist in the lowering direction to feed the chain
through the hoist.
4. Replace chain end stop.
Slide the buffer pad over the loose end of the load chain and
refit the chain end stop ensuring that at least 1 link remains free
(see Fig. 1).
Attention:
The chain must not be twisted.
Now insert the chain anchor bolt through the side bore. Move
the last chain link back and forth while entering the chain anchor
bolt to ensure that the chain is not trapped or damaged by the
anchor bolt.
Finally attach the chain anchor with the housing again.
Fastening torque for the locking screws:
M6 = 10Nm / M8 = 25Nm
Functional fixed after 60 minutes. Curing time at room
temperature is 24hrs.
Attention:
Screws should be used only once.
6. Assemble the bottom block.
Check the idler sheave for damage. Position the load chain over
the idler sheave ensuring that the welds on the standing links
are facing away. Now, position the idler sheave bolt with roll pin
in the housing half. The roll pin must correspond to the size of
the groove. Then, push the idler sheave onto the carrying bolt.
The needle bearings should be greased beforehand. Prior to
replacing and screwing the second housing half, make sure that
the buffer pad is situated correctly in its groove.
Chain anchor
Anchor bolt
Fixing screws
Fig. 14
Attention:
Use only original
Yale chain anchor
bolt and fixing
screws.
7. Functional test.
All units with two or more chain falls must be inspected before
every operation for twisted or kinked chains. Chains on 2-fall
units may become twisted if the bottom block is rolled over. If a
strand is twisted, disconnect it from the hoist and re-thread it
correctly. In some cases, it may be necessary to remove the last
link.
8. Before initial operation, lubricate the unloaded chain and test
all hoist functions under a no-load condition.
8.4 MAINTENANCE LOAD HOOK
Inspect the hooks for deformation, damage, surface cracks,
wear and signs of corrosion as required but at least annually.
Adverse working conditions may dictate shorter periods. Hooks
that do not fulfill all requirements must be replaced immediately.
Welding on hooks to compensate for wear or damage is not
permissible.
Hooks must not be replaced when the mouth of the hook has
opened more than 10% (Fig. 15) or the nominal value of other
dimensions has decreased by 5% due to wear. Nominal
dimensions and wear limits are shown in the following table.
Replace damaged or missing safety catch.
Tab. 3
CPV 2-8 CPV 10-4 CPV 20-4
CPV 5-4/5-8 CPV 10-8
Inspection
Dim. Nominal Min. Nominal Min. Nominal Min.
value value value value value value
mm mm mm mm mm mm
Hook saddle
b
2
15.0 14.2 21.0 19.9 26.0 24.7
Hook saddle
h
2
22.1 21.0 29.6 25.2 37.1 35.2
Hook opening
a
2
38.0 41.8 44.0 48.4 47.6 52.4
Hook opening
a
1
29.0 31.9 35.8 39.4 40.0 44.0
Fig. 15
NB: For exact confirmation of hook dimensions please
request certified drawing.
Weld on link
to outside
Yale
CPV/F
®
