Manitowoc 14000 Service And Maintenance Manual

Reference Only
HOISTS 14000 SERVICE MANUAL
5-10
Published 09-10-14, Control # 065-24
2. Test block-up limits 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. Load
drum should not operate in HOIST direction and the
boom/mast hoist should not operate in LOWER
direction.
b. BOOM RAISED: Slowly hoist each load block and
weight ball — one at a time — against weight.
When chain goes slack, corresponding load drum
should stop HOISTING and the boom/mast hoist
should not operate in LOWER direction.
Adjustment
See Figure 5-7 for the following procedure.
Lower the boom onto blocking at ground level and adjust
each limit switch as follows:
1. Adjust spring tension so there is enough force to lift
weight of chain and rotate actuating lever when weight is
lifted.
2. Loosen setscrew in limit switch lever so lever is free to
rotate.
3. Manually lift weight to allow actuating lever to rotate
upward.
4. Hold lever at Dimension A.
5. Hold roller on limit switch lever against actuating lever
while performing step 6.
6. Turn limit switch shaft COUNTERCLOCKWISE (for right
hand) or CLOCKWISE (for left hand) only enough to
“click” limit switch open and hold. Then securely
tighten setscrew in limit switch lever.
7. Test limit switch for proper operation (see Maintenance
topic); repeat adjustment steps until limit switch
operates properly.
CAUTION
Avoid Sheave Damage!
Use extreme care when testing block-up limits when
boom is raised. If a block-up limit fails to stop load,
immediately stop load by moving drum control handle to
off; otherwise, two-blocking may occur.
A1007
A1131
FIGURE 5-7
Left Hand Shown
Right Hand Opposite
From Boom or Jib
Node Controller
Dimension A
1.04 in (26 mm)
Limit Switch for
Lower Boom Point and Jib Point
Item Description
1 Elbow with Cord Gripper
2 Setscrew
3Spring
4Enclosure
5 Adjusting Screw (Spring Tension)
6 Grease Fitting
7 Actuating Lever
8Roller
9 Limit Switch Lever
10 Shaft
11 Cover
6
5
11
7
4
3
2
1
10
9
8

Manitowoc 14000 Specifications

General

Brand	Manitowoc
Model	14000
Category	Construction Equipment
Language	English