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MAINTENANCE
PA91 03/09 Maintenance Section 5-9
© 2009 Alamo Group Inc.
MAINTENANCE
Replacing Shaft Seals
1. The double shaft seal assembly must be
assembled with the 7 MM. wide single lip seal
fitted first with the 1 MM. thick lip support washer
on top.
2. The back of the double lip seal should be filled with
a light grease before fitting with the wiper lip
outermost.
3. The seal kit, Part No. 86-99-166 is a universal
Cassapa motor sealkit. It may contain more seals
than are necessary; care must be taken in
selecting the correct seal to use.
HYDRAULIC HOSES
The condition of all hoses should be carefully checked
during routine service of the machine. Hoses that have
been chafed or damaged on their outer casing should
be securely wrapped with waterproof adhesive tape to
stop the metal braid from rusting. Hoses that have
suffered damage to the metal braid should be changed at the earliest opportunity.
Hose Replacement
1. Replace one hose at a time to avoid the risk of wrong connections.
2. When the hose is screwed to an additional fitting or union, use a second spanner on the union to avoid
breaking seals.
3. Do not use jointing compound on the threads.
4. Avoid twisting the hose. Adjust the hose line to ensure freedom from rubbing or trapping before tightening
hose end connections.
5. Before changing hoses, study the installation. These should be positioned so that their worm drive barrels
are opposed at 180 degrees to reduce the possibility of air entering the system.
Hose Warranty
Warranty is limited to replacement of hoses which have failed due to faulty materials or manufacture. Warranty
will not be considered on hoses that have suffered damage by abrasions, cuts or being pinched or trapped
while in work. Neither will a claim be considered where a hose end has been damaged by a blow or where the
threads or unions have been damaged by overtightening.