LUBRICATION 1400H OPERATOR AND SERVICE MANUAL
4-6 Published 10-30-2014 Control # 040-09
BOOM LUBRICATION
This crane boom is painted with an exclusive highly
wear resistant/lubricating enhanced polymer coating. This
coating was formulated and tested specifically for use on
crane boom and outrigger extension sections. It has shown
excellent long lasting durability and good smooth boom
operation without use of boom lubrication during field and
laboratory testing conducted by National Crane. However,
we do not represent this as a life time coating system which
never needs lubrication.
Greasing these boom sections with chassis grease will
not harm the paint. Grease may improve the extension
system performance. Please inform us if you find it
necessary to grease the boom sections.
Since field tests cannot simulate every condition, we
are interested in how this coating performs in your
application without lubrication. Your comments about your
experience with this system would be appreciated. Please
contact National Crane Product Support Service at
telephone 402-786-6300 or FAX 402-786-6379.
INNER BOOM PAD LUBRICATION
Outriggers and stabilizers should be fully
deployed with crane set up on a level surface
during the boom pad lubrication process.
1. With the boom fully retracted, fill upper rear pad
retention pockets (pad retainers) with grease. Access
pockets thru holes in rear of boom top plate.
2. With boom over rear of truck, fully extend boom and then
lower to the lowest angle possible. It may be necessary
to first turn boom slightly to miss boom rest. The upper
rear pad retention pockets will be under the 1/4 in (6,35
mm) grease access holes in the butterfly plates on the
top of the boom sections.
3. Using a 1/4 in (6,35 mm) diameter nozzle grease gun
adaptor, fill pad retention pockets with grease.
4. Retract boom. This should apply grease to the pad
bearing area of the top plates of the boom sections.
5. These steps can be repeated as many times as
necessary if unacceptable boom noise or chatter
persists.
Side and Bottom Boom Wear Pad
Lubrication
Recommended lubricant is EP-3MG grease.
1. Fully extend and set the outriggers.
2. Lower the boom to horizontal.
3. Fully extend the boom and apply grease to the side and
bottom of the 2
nd
,
3
rd
, and 4
th
sections with a brush.
4. Raise the boom to 75° and retract the boom.
5. Extend and retract the boom several times until the
grease is evenly spread.
6. Repeat as necessary.
19. Retract Sheaves
Extend boom until retract sheave
grease holes are visible through
access holes along side of boom.
Chassis Grease
#200S Silver Streak Special
Multi-Lube (light)
Grease Gun w/ Nozzle tip. See
Boom Maintenance Section
Weekly
20. Diffuser, Strainer Clean Semi-Annually with oil change
21. Optional Continuous Rot. Swivel Chassis Grease Grease Gun Monthly
22. Boom Top Wear Pads Chassis Grease See Boom Wear Pad Lubrication in
this section
WARNING
Fall Hazard!
Do not, under any circumstances, work at an elevated
height without using proper fall protection as required by
local, state or federal regulations.
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