Installation - Manitowoc Grove RT880E Service And Maintenance Manual

RT880E SERVICE MANUAL
Item Description
1 Main Hoist
2 Auxiliary Hoist
3 Counterweight Cylinder
4 Cable Follower
5 Idler Drum
6 Shims
7 Capscrew
8 Nut
9 Washer
10 Counterweight
11 Counterweight Cylinder Pin
5. Remove the hoist mounting nuts, capscrews, washers,
and shims (if shims are used, mark their location).
NOTE: The hoist assembly, less the cable, weighs approx-
imately 1485.9 lb (674 kg).
6. Using an adequate lifting device, remove the hoist from
the crane.

Installation

1. Ensure the mounting plate and hoist pads are clean and
free from debris and the hoist has not been damaged
during handling.
2. With the hoist supported by a suitable lifting device, posi-
tion the hoist on the mount.
3. Check the hoist to boom alignment according to the
Hoist to Boom Alignment, page 5-5 procedure in this
section.
4. Place a level between the boom pivot shaft bushings.
5. Place a level across the top of the hoist drum and deter-
mine if the hoist is sitting in the same plane in relation to
the level positioned between the boom pivot shaft bush-
ings.
Grove
6, 7, 8, 9
6319-1
6. With the hoist level, check to determine if all the hoist
mounting pads are in contact with the mounting plate by
rocking the hoist.
7. Keeping the hoist level, use a feeler gauge to determine
the amount of gap existing between the pads and the
mounting plate.
8. Add shims to satisfy any existing gaps. Altering the shim
thickness to fit a tapering gap is acceptable. Install the
capscrews, washers and nuts and torque 1047 to 1134
lb-ft (1420 to 1538 Nm).
9. Remove the lifting device from the hoist.
10. Connect the hydraulic lines to the hoist ensuring the
proper lines are connected to the correct ports as
marked during removal.
11. Connect the electrical wires to the hoist hi speed sole-
noid valve as marked during removal.
12. Connect the electrical wires to the hoist rotation indicator
sensor box as tagged during removal.
13. Install the cable, following the procedures outlined under
Installing Cable on the Hoist, in the Operator Manual.
Published 11-10-2014, Control # 524-00
HOISTS AND COUNTERWEIGHT
2
1
4
3
5
11
3
5
10
FIGURE 5-1
5-3