Digga PDD-PD50, Service & Repair Manual

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PM-000100-D PDD - PD50 Service and Repair Manual - October 2017
INSTALLATION OF HOOD CYLINDERS
1. Place interconnecting tube in hood, screw hood cylinders on to tube, finger tight only, place both cylinders into hood and align bolt holes.
2. Gently lift both cylinders back out of hood and tighten tube nuts ensuring cylinders stay in same position on tube for bolt hole alignment.
3. Place cylinders back in hood, fit and tighten retaining bolts.
4. Reconnect cradle or frame to drive unit.
5. Remove the grub screw from each cylinder and fit a grease nipple to one cylinder. Using a grease gun filled with C-OO-EP grease, pump grease
into cylinder and keep filling until both cylinder shafts have contacted the nylon pads on the linkage assembly and grease comes out of the
opposite cylinder.
6. Remove grease gun and grease nipple, reinstall grub screws using sealer or thread tape.
ATTACHMENT IS READY TO USE.
REMOVAL OF AFT DAMPENER
1. Using a suitable lifting device lift the entire attachment and place the drive unit in a stable and secure stand.
2. Remove the cradle or frame assembly from the drive unit by removing the hood to linkage assembly pin.
3. Remove connecting pin from top of dampener / linkage assembly and remove linkage assembly to frame pin, taking care that the linkage
assembly does not fall. Place linkage assembly aside.
4. Remove both lower dampener retaining pins from frame taking care that the dampener does not fall. Remove dampener from frame.
RECHARGING AFT DAMPENER
1. Push cylinder rod all the way in (closed).
2. Remove both upper and lower plugs (grub screws) from the gland nuts on the cylinder, and fit grease nipple to lower gland nut.
3. Using grease gun filled with C-00-EP grease pump up the cylinder until the rod is all the way out and grease is coming out of the top plug hole.
4. Remove grease gun and grease nipple. Reinstall both plugs using sealant or thread tape.
NOTE: DO NOT OVERTIGHTEN THESE PLUGS – GLAND NUTS CAN BE DAMAGED.