Barko Hydraulics 495B SD - Hydraulic Fittings, Hoses & Tubing

Operation and Maintenance ManualLast Updated - 08/31/2016
495B ML TM (S)
46
A heavy wall tubing and multi-wire hose network carries the hydraulic oil from the reservoir to the pumps and valves
andthentocylindersandmotorsandnallybacktothereservoir.
Operating pressure of the hydraulic system varies from model to model. For your loader, consult the Hydraulic
Pressure Warning Sheet in this manual.
Replaceanytubelineswhicharebentorhavebecomeat.Therewillbearestrictionofuidowwhichwillmake
hydraulic action slow and cause heat. Replace hoses which show signs of wear, damage, or weather-cracked rubber.
When making repairs on hydraulic system keep all parts clean and remove all dirt from the area
before you disassembly Use caps and plugs to keep dirt out of tubelines and openings.
PIPE THREAD SEALER
Themaincausesofairbeingintroducedintoahydraulicsystemarelooseconnectionsandttings.Thisnotonly
createsaerationintheuidbutalsoprovidestheriskofcontaminationenteringtheuidandcomponentswiththeair.
The easiest way to effectively reduce and possibly eliminate this problem is to use an adequate pipe thread sealer at
allconnectionsandttings.
Whileotherpipethreadsealersmaymeetspecications,themethodswhichBarkousesareTeontape,andLocktite
TeonThreadSealer.
Thesealerwillformaexible,non-hardeningsealthatcanbeeasilybrokenatanytimewithoutstrippingthethreads
ordamagingthepipesorttings.Itwillalsoprovideanon-shrinkingbondthatwillinhibitrustorcorrosioninthe
threads and will not gall, seize, or block the threads.
APPLICATION
Thepipethreadsealerisintendedforuseonthreadedsteelpipeinxedinstallations.Itcanbeeasilyappliedbythe
tubeitcomesin.Thissealerisintendedforusewithpetroleumuidsonly.Applysealersparinglyandleavetherst
twothreadsneartheendofthepipeorttingbare.
Barkorecommendstheuseofpipethreadsealeronallexteriorpipeplugthreadsandpipettings.
HYDRAULIC FITTINGS, HOSES & TUBING