Tiger Products Co., Ltd TWR-180 - Manual (Page 80)

MAINTENANCE
Maintenance Section 5-8
MAINTENANCE
© 2004 Alamo Group Inc.
TWR-180/TWR-120 12/04
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.
WASHER CONED
DOWN TO NUT
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.
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.