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National Crane Published 8-01-2017 Control # 287-11 8-7

NBT40 SERVICE MANUAL LUBRICATION

Internal Cable Sheave Lubrication

Lubrication of the extend and retract sheaves is as follows:

1. Locate the fittings as listed in the table above.

2. Lubricate the pins until a small amount of grease

extrudes from the 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.

3. Fully extend the boom and apply grease to all wear pad

contact surfaces at the side and bottom of all boom

sections with a brush or putty knife.

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.

Top Boom Wear Pad Lubrication

Recommended lubricant is EP-3MG grease.

1. Fully extend and set the outriggers.

2. Lower the boom to horizontal.

3. Remove access plate at top rear of the base section.

4. Extend the boom until wear pads are centered in access

opening and apply grease to all wear pads and contact

surfaces at the top of all boom sections with a grease

gun or a brush.

5. Raise the boom to 75°.

6. Extend and retract the boom several times until the

grease is evenly spread.

7. Repeat as necessary.

Outrigger Beam Lubrication

Recommended lubricant is EP-3MG grease.

1. Fully extend and set the outriggers. Refer to

(Figure 8-2.)

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.

Hoist Brake Oil

DANGER

Do not, under any circumstances, work at an elevated

height without using proper fall protection as required by