Manitowoc GROVE RT890E Operator's Manual page 113

RT890E
Traveling with Hydraulic Luffing or Manually
Offsettable Boom Extension and/or Inserts
Erected
33 ft (10.1 m)/56 ft (17.1 m) Extension Plus 16 ft (4.9 m)
or 32 ft (10 m) Inserts
Travel is permissible under the following conditions.
1. The 33 ft (10.1 m) or 56 ft (17.1 m) boom extension shall
be erected at minimum offset.
2. Jobsite travel only on firm, level surface.
3. Main boom shall be fully retracted.
4. Main boom angle: 0 degrees minimum, 40 degrees
maximum.
5. Maximum travel speed: 2.5 mph (4 km/h).
6. Counterweight shall be installed.
7. The boom shall be over the front.
8. Swing lock and pin shall be engaged.
9. Hookblock must be removed from main boom nose.
10. Headache ball be reeved over boom extension, hanging
3 feet (0.9 m) below sheave.
11. The tires shall be properly inflated.
Adjustment Procedure for Stowage Brackets
for Hydraulic Luffing Jib
1, 2
5
4
3
6443-1
1, 2
FIGURE 4-13
SET-UP AND INSTALLATION
Item Description
1 Bolt
2 Flatwasher
3 Rear Hanger Assembly
4 Hex Nut
5 Bolt
1. Loosen items 1 and 2 that secures item 3 (refer to Figure
4-13).
2. Loosen item 4 that secures item 5.
3. Adjust item 5 so as to move item 3 to its highest position
on the boom.
NOTE: Caution must be taken during this adjustment so as
not to bind up other brackets. This is required to
assure that the boom extension nose will clear the
valve cover on the side of the turntable.
4. Tighten items 1 and 2 that secures item 3 (refer to Figure
4-13).
5. Tighten item 4 that secures item 5.
6. Using the luffing jib offset cylinder, adjust the boom
extension adapter so that the pin holes align with the pin
holes in the boom nose.
7. Adjust the other boom extension hanger brackets so as
to get proper support and alignment for easy pin
installation at the boom nose.
Driving the Rigged Crane
When driving with a rigged boom extension, proceed in the
same way as for driving with a rigged lattice extension.
MAINTENANCE WORK
Maintenance Work M1, Monthly
• Lubricate all attach, securing, and retaining pins.
NOTE: The maintenance interval applies to average
operation. Also lubricate the pins after high-
pressure cleaning and generally at an interval that
will prevent them getting dry.
4
4-51