Parts & Service 28/06/2009 902-001-2 Rev 0
10 of 28
3.4 FITTING THE COUPLER (Dipper Pin)
•
Place o’rings over ear plates of coupler to hold in position until ready for final placement.
•
Carefully raise the dipper arm of the carrier machine so that the weight of the coupler is off the
ground. Ensure that the dipper arm is in a vertical position.
(Fig 3.4.1).
•
Retract the crowd cylinder until the coupler front boss aligns with the dipper pin hole. The coupler will
balance allowing an easy insertion of the main dipper pin
(Fig 3.4.2).
•
Align pin retention system and fix dipper pin into place.
•
Grease both the dipper pin and the linkage pin.
•
Crowd coupler through full rotation to check clearances.
•
NOTE – ORIGINAL OEM DIPPER PIN MUST BE USED.
CAREFULLY CROWD THE COUPLER THROUGH FULL ROTATION TO CHECK
CLEARANCES
IF THERE ARE ANY SIGNS OF INTERFERENCE STOP IMMEDIATELY AND
CONTACT YOUR WEDGELOCK DEALER
Fig 3.4.1 Raise dipper arm to
take weight off coupler
Fig 3.4.2 Retract crowd cylinder
to align dipper pin
SECTION 3: COUPLER INSTALLATION
