NATIONAL CRANE Published 09-06-2019 Control # 691-01 5-7
NBT60L OPERATOR MANUAL LUBRICATION PROCEDURE AND CHARTS
Internal Cable Sheave Lubrication
A grease gun adapter is required to lubricate the internal
sheaves. The required needle grease gun fitting is:
• A 0.25 in (6.35 mm) diameter nozzle grease gun tip
(National P/N 955045).
• Contact Manitowoc Crane Care to obtain this tip.
Lubrication of the extend and retract sheaves is as follows:
1. Locate the fittings as listed in the table above.
2. Lubricate the sheave pins until a small amount of grease
extrudes from the sheave pin.
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.
Extend the boom and apply grease to the side and
bottom of the Tele 2,
Tele 3, Tele 4, and Tele 5 sections
with a brush.
3. Raise the boom to 75° and retract the boom.
4. Extend and retract the boom several times until the
grease is evenly spread.
5. Repeat as necessary.
Outrigger Beam Lubrication
Recommended lubricant is EP-3MG grease.
1. Fully extend and set the outriggers. Refer to
(Figure 5-2).
2. Apply grease to all wear pads and contact surfaces at
the side and bottom of all beam sections and lower
surface of the stabilizer/jacks with a suitable brush or
putty knife.
3. Extend and retract the outriggers several times until the
grease is evenly spread.
4. Repeat as necessary.
22 Cab Heater Reservoir AFC
Check and Fill
Change
Check and Fill: Weekly, Fill As
Required
Change: Semi-Annually
23 Hook Block Swivel Bearing EP-MPG Grease gun Monthly
24 Hook Block Sheaves EP-MPG Grease gun Monthly
25 Turntable Swing Lockpin EP-MPG Spray Monthly
26 Cab Tilt Cylinder Pivot Pins EP-MPG Grease gun Every 500 hours or 3 months
27 Cab Pillow Block EP-MPG Grease gun Every 500 hours or 3 months
NOTE: Lubricate items more frequently than interval indicated in table if environmental conditions and/or operating
conditions necessitate.
Item Application
Recommended
Lubricant
Procedure Frequency
DANGER
Do not, under any circumstances, work at an elevated
height without using proper fall protection as required by
local, state or federal regulations.
WARNING
• The boom cannot be fully extended at 0° under any
circumstances.
• Follow all load charts when greasing the boom.
DANGER
Do not, under any circumstances, work at an elevated
height without using proper fall protection as required by
local, state or federal regulations.