10
NORTH AMERICA
SECTION 4: HYDRAULIC KIT INSTALLATION
There are three main sections to the hydraulic kit installation which consists of:
•
Fitting of the Hose Clamp Bracket to the dipper arm.
•
Fitting of the I-Lock Control Valve in the engine/pump compartment.
•
Routing the 3 Line Hydraulic Circuit to complete the hydraulic part of the coupler installation.
4.0 HOSE CLAMP BRACKET
The Hose Clamp Bracket is a square steel plate with 2 holes drilled and
tapped for attaching the hose clamps to it. Note correct orientation. (Fig
4.0.1)
•
Positioning of the Hose Clamp Bracket and the hose routing is
critical to the life cycle of the jumper hoses. (Fig 4.0.2)
•
To determine the optimum position of the hose clamp bracket
first rotate the bucket curl cylinder through full rotation to check
available clearances for the bracket at both full stroke and zero
stroke.
•
The hose clamp bracket should be placed as close as possible to the
main dipper pin to minimize hose length.
4.1 FITTING THE HOSE CLAMP BRACKET
•
Once the optimum position has been determined, clean and prepare the surface of the dipper
arm to be welded.
•
Lightly tack the hose clamp bracket into position, carefully tacking only the ends of the bracket.
(Refer to welding precautions and carrier machine service manual for welding instructions).
•
Fit all 3 (Blue) hoses to the Coupler and Safety cylinders. (This may require removing the coupler
cylinder to access the fittings) Cover the hoses with the nylon abrasive sleeve provided and
route the 3 hoses together through the Hose Clamps and attach to the bracket.
•
Rotate coupler
SLOWLY
through full rotation checking that
the hoses can move freely and are not subject to pinching
or crushing at any point. Re-position hose clamp bracket if
required.
•
Remove hoses, stitch weld the sides ONLY of the hose clamp
bracket to the dipper arm. (Fig 4.1.1 Stitch weld location)
• Touch up paint finish on welded component to match carrier
machine color.
Fig 4.0.2
Fig 4.0.1 Hose Clamps and Bracket
weld bracket
to boom
weld bracket
to boom
Fig 4.1.1