Maintenance - Textron Greenlee UT2 Manuel D'instructions

Maintenance

Shut off motor and unplug unit before dismantling
or servicing.
Failure to observe this warning will result in severe
injury or death.
Drive Chains
Removal
Remove the 6 screws securing the chain guard. Pull out
the chain guard—motor end first—and remove. Remove
the bolt securing the capstan to the puller and the screw
securing the drive sprocket to the motor. Remove all the
washers, noting their proper order for reassembly. Pry off
the drive sprocket while pulling out on the capstan unit
and remove both. Pull off the drive chain. Reassemble
with the connecting link retainer facing outward.
Wear
Check to make sure all the links pivot freely without
binding. Replace the chain if any resistance is felt.
Alternately load the links in tension and compression
along the length to check for any perceptible free play.
There should be a barely detectable amount of free
play. If any joint has enough free play to be easily seen
(about 1/64"), replace the chain. Always replace the
entire chain, including the connecting link as a whole unit.
Lubrication
Lubricate the drive chains after every 40 hours of
operation. Lubricate between the chain plates from the
inside of the loop with any high quality chain lube or an
80W - 90W gear oil.
Adjustment
Loosen the 4 screws securing the motor. Push the motor
away from the capstan while retightening the motor
screws.
Greenlee / A Textron Company
UT2 Cable Pulling System
Capstan
Removal
See drive chain removal.
Wear
Check for wear on the outside of the capstan. If the rope
has worn a groove deeper than .10" on the 2" diameter
portion of the capstan, replace it. Check for bearing
wear. If the brass bearing ID exceeds 1.020" or if there
is visible radial free play between the capstan and shaft,
replace the capstan and bearing assembly.
Lubrication
Lubricate the capstan shaft after every 20 hours of
operation. Liberally apply a multipurpose NLGI grade 2
grease to the capstan shaft and bearing.
Adjustment
If the capstan or puller frame is replaced, adjust the axial
free play to less than 1/32". Assemble the inner thrust
washers and capstan to the frame without the chain.
Attach with the bolt and retaining flat washer. If the
capstan binds, add 52023123 shim washers one at a
time until it rotates freely. If it has more than 1/32" of
axial free play, add 50179160 fiber washers to set the
free play at less than 1/32".
Motor
Commutator Brushes
Check the commutator brushes after every 40 hours of
operation. Remove the motor brush caps and brushes.
Measure the brush lengths. If length of either brush is
less than 3/8", replace both brushes.
Other
Anti-Reverse Pawl
Check that the pawl pivots freely on its shaft. Clean any
rust or debris from the shaft or pawl bore.
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