Tiger Products Co., Ltd TWR-180 manual Maintenance, LUBRICATION Gearboxes, Blade Carrier Removal

MAINTENANCE

Blade Carrier Removal

Remove cotter pin and loosen slotted nut on gearbox shaft. Loosen but do not remove the nut until the blade carrier is loosened. Use a suitable two-jaw gear puller to pull carrier off tapered gearbox shaft. If gear puller is not available use a long bar inserted through the bolt access hole, striking the long bar with a sledge hammer. Rotate blade carrier 180o and repeat process until the blade carrier is loosened.

Blade Carrier Installation

Clean the taper and splines on both the blade carrier and output shaft. Castle nuts and cotter pins are used to tighten the cutter pans to the splined shaft on the cutter gearboxes. A cone washer is used between the nut and the gearbox main shaft. The washer must cone down towards the nut.

A 1-13/16" socket can be used to torque the M30 nut to 600 ft/lbs dry assembly. Strike the carrier on the hub several times with a heavy hammer to seat the hub. Use a suitable spacer over the nut to prevent damage to the nut and threads. Retighten the nut to 600 ft/lbs dry assembly. Install new cotter pins when retightening these nuts.

WASHER CONED DOWN TO NUT

MAINTENANCE

It is important that the retaining nut be checked after a few hours of operation then periodically. Retightened if necessary.

WARNING! AVOID PERSONAL INJURY. DO NOT work under cutter without support blocks to keep the frame from falling.

LUBRICATION

Gearboxes

Replace oil in gearboxes after the first 50 hours of operation then yearly.

Check gearbox oil level frequently. Steady loss of oil will indicate damaged seals, which should be replaced immediately to prevent ruining the gearbox.

TWR-180/TWR-120 12/04	Maintenance Section 5-8
© 2004 Alamo Group Inc.