Reference
Only
HOISTS
999 SERVICE/MAINTENANCE MANUAL
5-10
Published 05-16-17, Control # 233-03
2.
Test the block-up limit controls for proper operation
using either of the following methods:
a.
BOOM LOWERED: Manually lift each weight —
one at a time
— while the engine is running. The
load drum should not operate in the
hoist
direction
and the boom/luffing hoist should not operate in the
lower
direction.
b.
BOOM RAISED:
Slowly
hoist each load block and
weight ball —
one at a time
— against the weight.
When the chain goes slack, the corresponding load
drum should stop hoisting and the boom/luffing hoist
should not operate in the lower direction.
A837
See Load Block Reeving drawing for
Suggested Location of Weight
Two Chains Prevent
Weight from Turning
Weight
Chain
Shackle
Connecting
Pin
Weight
Shackle
Chain
FIGURE 5-7
Lower Boom Point (multiple part),
Lower Boom Point (two lines over point),
Universal Anchor Joint,
Luffing Jib Point (multiple part), or
Fixed Jib Point (2-part)
Fixed Jib Point (1-part),
Upper Boom Point,
Luffing Jib Point (single part),
Lower Boom Point (single part), or
Luffing Jib Intermediate Fall
3 ft (0,9 m) to Top
of Weight Ball
Weight
Weight
Weight
Lift
Plates
Lift
Block
Lift
Block
Single Part Reeving
Multiple Part Reeving
Dead Ended at Block
Multiple Part Reeving
Dead Ended at Boom
Dead-End Load Line
or Slowest Live Line
Connecting
Pin
CAUTION
Use extreme care when testing block-up limit controls
when boom is raised. If block-up limit control fails to stop
load, immediately stop load by moving drum control
handle to off or by applying drum working brake;
otherwise, two-blocking may occur.
Содержание 999
Страница 1: ...R e f e r e n c e O n l y Service Maintenance Manual Manitowoc 999 ...
Страница 2: ...R e f e r e n c e O n l y ...
Страница 4: ...R e f e r e n c e O n l y THE ORIGINAL LANGUAGE OF THIS PUBLICATION IS ENGLISH ...
Страница 173: ...R e f e r e n c e O n l y Manitowoc Published 05 16 17 Control 233 03 4 19 999 SERVICE MAINTENANCE MANUAL BOOM 4 ...
Страница 174: ...R e f e r e n c e O n l y BOOM 999 SERVICE MAINTENANCE MANUAL 4 20 Published 05 16 17 Control 233 03 ...
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