Manitowoc 1400A User Manual

National Crane 1-21-2019 Control # 104-07 4-15
1400A SERVICE MANUAL BOOM MAINTENANCE
4
7. Install the new pads with Teflon inserts on the plates or
boom sections. Reassemble plates in boom in proper
locations.
Inner Side Pad Clearance
1. With a pair of inside/outside calipers, measure the inside
width of the outer section (W
I
) at the front and back of
the boom and record the smallest measurement. If the
section has cylinder anchor bars, take a measurement
directly in front of these bars.
2. With the inside/outside calipers, measure the outside
width of the inner section (W
0
) at each side pad location.
Record the largest measurement.
3. Measure the thickness t
WP
of the left t
WP1
and right
t
WP2
wear pads and record.
4. Subtract the largest outside width (W
0
) of the inner
section plus the thickness of the two pads (t
WP
) from the
smallest inside width (W
I
) of the outer section.
W
I
- (W
O
+ t
WP1 +
t
WP2
) = Clearance Before Shims
NOTE: Shim Thickness = 0.76 mm (0.03 in)
5. Add shims as required to tighten the pads so that there
is 0.8 mm to 2.3 mm (0.03 inch to 0.09 inch) clearance
between the widest part of the inner boom and the most
narrow part of the outer boom. In some cases, there will
be an unequal number of shims behind the pads at the
top and bottom side pad locations (See Figure 4-10).
Inside
W
I
Cylinder
Anchor Bars
Outer
Section
FIGURE 4-7
Outside
W
O
2 Plcs Top
W
O
1 Plc Bottom
Inner
Section
FIGURE 4-8
t
WP1
t
WP2
Left Side
Wear Pad
Right Side
Wear Pad
FIGURE 4-9
Fo
r
Reference
Only

Manitowoc 1400A Specifications

General

Brand	Manitowoc
Model	1400A
Category	Construction Equipment
Language	English