Tronair JP30, Operation & Service Manual, Page: 14 / 83

Models: JP30, JP30L
Electric Towbarless Tug
07/2015 | Rev. 10 Page | 10
10.0 MAINTENANCE
WARNING
All work on the JETporter tug should be performed by competent repair personnel. Before performing
maintenance, review all safety procedures.
10.1
GENERAL MAINTENANCE
1. After the JETporter has been in operation for (4) months the steering chain should be tightened to take up the slack from
initial chain stretch. If this is not done there is a chance that the steering chain could jump off the sprocket, which would
cause the steering system to fail.
Access the chain through the knee level panel at the driver’s platform. Under the
steering sub-frame there are three bolt heads facing down that screw into the steering ratio multiplier. Loosen these three
bolts and pull the whole assembly back to tighten the chain. Retighten the three bolts while still applying tension to the
steering assembly.
2. Check the electrical connections for loosening; tighten if necessary.
3. Check battery water level weekly
4. Paint the terminals of the batteries with acid-proof coating.
5. Check all bolts and hydraulic fittings for looseness. Tighten if necessary.
6. If battery acid should spill into the battery box or on metal parts, flush with water and baking soda. Sprinkle baking soda in
bottom of battery box to prevent corrosion.
WARNING
Battery acid is corrosive. Wear gloves and eye protection when servicing batteries.
7. Keep JETporter in a clean condition. Check for any unusual conditions, such as bent metal or broken parts.
8. Electric vehicles, such as JETporter, should never be steam cleaned.
9. Tire Replacement. Replace worn tires with equal or greater capacity tires only. Do not change tire dimensions when
replacing tires.
10.2
LUBRICATION
LUBRICATION CHART
Lube Point Interval Lube Spec Remarks
Hydraulic Pump Weekly AW 46 Check level
Transaxle Semi-annual
80/90 Wt. Gear lube Oil
Check level
Lift Cradle Pivots Monthly SAE 50
Hydraulic Cylinders Monthly SAE 50 Lube both ends
Steering Roller Chain Annually Chain lube spray
Steering Axle Hubs Annually Lithium Bearing Grease Including top support hub
Steering Shaft Flange Bearing Annually Lithium Bearing Grease Zirk fitting
CAUTION
To avoid potential injury or equipment damage, use proper support and block front tires when either end of
tug is raised. Use blocks/jack stands capable of supporting 3,000 lbs.
1. Lubricate the pivot points on the lift cradle with SAE 50 oil on a monthly basis.
2. Lubricate both ends on the two hydraulic cylinders with SAE 50 oil on a monthly basis.
3. Lubricate the roller chain on the steering axle with chain lube spray on an annual basis. This can be accessed by raising
the steering axle with a jack under the platform.