Keep your vehicle in tip top shape with our Maintance Tips...

Lube PTO shaft splines every 6 months

Check adjustment of rotary screw murphy switches

Do not operate compressors above the recommended maximum pressure 

Vanair NK40 Tiger Compressor Maintenance

• After initial 50 hours
• Change oil filter (since initial oil filter will have collected any foreign materials which have collected in manufacture).
• Check belt tension and alignment (majority of belt stretch will occur during early operation hours, also be sure to check alignment).
• Check compressor oil for water or emulsion.
• Every 500 hours or 6 month
• Change compressor oil and filter
• Change air filter (shorter intervals may be required if dirty environment).
• Check belt tension and alignment
• Blow out compressor cooler core.
• Check all fittings and fastenings.
• Test shutdown system.
• Every 1000 hours or 1 year
• Check safety circuit switches
• Check sump safety valve
• Replace spin-on coalescer (sooner if required)

Crane Rotator Worm Gear Break-in

• Crane models 3020, 3820, 5020, 5025, 5525, 6025, and 6625.
• Before beginning crane operation with a new worm gear, the gearset must be well lubricated. Keystone Moly29 open gear compound is recommended. The molybdenum disulfide grease must be liberally brushed on the gear teeth of the bearing and on the teeth of the worm before any turning of the rotator. All teeth need to be covered with grease with no exposed bare metal areas showing. The first rotations of the rotator may be rough and may have a scraping sound. This is normal. The gear and worm are merely breaking in and will smooth out with continued use. This amount of time depends on variables including moment load, cycles of use, slope of boom tilt, etc.
• IMT recommends running the system 10-15 cycles with a light load, then 10-15 cycles with a medium load and finally 10-15 cycles with a heavy load.
• During the break in period, small shavings of metal may appear in the grease. If this occurs, the grease with shavings should be removed from the gear and a new coat of grease is to be applied to the gear. This will improve rotation system performance of the life of the system.

Crane planetary winch

• Check every 500 hrs
• Change every 1000 hrs

Grease crane lift cylinder pivot pins weekly/ worm gear quarterly