M
AINTENANCE
Wheel Torque Hubs —————
The Torque Hub fluid level should be maintained at 1/2 full at all times. To add fluid to the Torque Hubs,
rotate the hub so that the plug is directly to the right or left of center. Remove the plug, (see illustration below) and
add fluid until it runs out of the hole positioned at 3:00 or 9:00. It is recommended to change fluid after 50 hours of
initial operation, and every 500 hours thereafter. See the Specifications and Fluids page at the back of this
manual for gearlube recommendation to provide best performance and life when filling or replacing the
lubricant. Capacity is approximately 27 oz. of oil.
The Torque Hubs are equipped with hydraulic brake units attached on the backside. The brakes will actuate
should the engine stop or loss of hydraulic pressure occur. It may become necessary to bleed air from the brakes or
brake lines after doing maintenance or service work. The bleeder port is located on the top, inside area of the brake
units.
To disengage the Torque Hubs for towing or freewheeling, remove the two cap screws and the end caps.
Then turn end caps over, and depress the button in the center of the hub by bolting the end caps back in place, in the
reversed position. (See illustration below)
Note: The sweeper propulsion and braking systems will not operate until the end caps have been
returned to their original (operating) position, with the center button out.
To avoid damaging planetary gears, do not tow for long distances or faster than 15 M.P.H.
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