HOIST NBT30H-2 SERVICE MANUAL
5-2 03-20-19 Control # 613-06
MAINTENANCE
Inspect the hoist daily for oil leaks, loose bolts, and worn
hoist cable. Check the gearbox and brake oil every 500
hours. Do an oil change every 1000 hours. Refer to
Lubrication, page 8-1. Inspect the hoist from the deck of the
crane. Do not stand on the turret.
Warm-up Procedure
A warm-up procedure is recommended at each start-up and
is essential if ambient temperature is below +40°F (4°C).
Run the crane at idle with the hoist control lever in neutral
and allow sufficient time for the hydraulic system to warm up.
Operate the hoist at low speeds, forward and reverse,
several times to prime all lines with warm hydraulic oil and
circulate lubricant through the planetary gear sets.
Removal
NOTE: See Figure 5-1 for item identification.
1. Remove the cable from the hoist drum.
2. Tag and disconnect the hoist hydraulic lines. Cap and
plug all hydraulic openings.
3. Attach a lifting device to the hoist and take up the slack.
4. Remove the mounting bolts from the hoist.
5. Remove the hoist from the crane with the lifting device.
Hydraulic Hoses
Inspect the hydraulic hoses and replace as required.
Hoist Installation
1. Attach a lifting device to the hoist.
2. Lift the hoist with a lifting device onto the turret.
3. Install mounting bolts and washers.
4. Remove the lifting device.
Item Component
1Hoist
2Brake
3 Motor
4 Mounting Bolts (8 places)
5Boom
6 Case Drain
7 Pressure Port to Raise
8 Pressure Port to Lower
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. Death or serious injury
may result.
WARNING
Crushing Hazard!
The combined weight of the hoist and 390 ft of wire rope is
730 lbs (331 kg). Death or serious injury may result.
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