Lukas HT 90 - Repairs

18
ATTENTION!
Alwaysreplacethehydraulicuidoveraliquidcollectioncontaineranddispose
ofthecollecteduidinapropermanner.
ATTENTION!
The hydraulic uid must be completely replaced if the application conditions
(ambienttemperatures)changesubstantially.Whenselectingasuitablehydraulic
uid,pleaserefertothechapter“Recommendedhydraulicuids”.
9.2.3 Replacing the hydraulic uid
- Thehydraulicuidmustbereplacedafterapprox.200deployments,butafterthreeyears
atthelatest,
- Itmustalwaysbechangedwheneverthehydraulicuidfortheaccompanyinghandpump
ischanged.Thisistopreventthefreshhydraulicuidfrombecomingcontaminatedbythe
useduidfromtherescueequipment.
Procedure:
1. Retractthedooropenerfullyanddepressurisethehydraulicsystem.
2. Removethecouplingonthedooropener.
3. Draino󰀨thehydraulicuid.
4. Flush
5. Reassemblethecoupling.
6. Connecthandpumpwithfreshhydraulicuid.
7. De-aerateasdescribedinChapter“Firstoperation”.
8. Re-connectthehandpump.
9.3 Repairs
9.3.1 Replacing the hose (on JL-8)
Hoseconnectionleakingorhosedefective.
Procedure:
1. Removethecouplingfromthehoseline.
2. Removethehoselinefromthecylinderofthedooropener.
3. Mountanewhoselineonthecylinderofthedooropenerandtightenwithatorqueof
M
A
=40Nm(use Teon tape).
4. ReassemblecouplingonthehoselineandtightenwithatorqueofM
A
=40Nm
(use Teon tape).