Hired-Hand PowerTrak Jr - Manual (Page 11)

Part No. 4801-0172 Rev 10/05 PowerTrak Jr. Page 11 of 18
9. Maintenance
The PowerTrak Jr is designed to operate with a minimum of maintenance. Keep debris out of the
enclosure. The door on the unit should be sufficient, but it is still recommended that you do a
visual inspection and clean out any wasp nests, etc. It is acceptable to blow debris out of the unit
with pressurized air, but never spray the internals with water unless power is completely
disconnected from the unit.
Important: Do not use WD-40
™ or other similar products for lubrication or cleaning of this
machine.
Inspect cables periodically, especially at the onset of cold weather. Damaged cables can break,
and the risk is higher in colder temperature. Replace any badly frayed or excessively worn
cables.
10. Limit Switches
The Limit Switches are located underneath the motor end cap (Figure 6).
1. Switch off electrical power to machine.
2. Remove cover from machine cabinet.
3. On bottom of cabinet unscrew Phillips head
or Flat head screw to open access door
4. Unscrew the screw from end cap. Remove
end cap from motor.
5. Refer
to Figure 6. Identify plastic knob
assembly and micro-switches on the end of
the motor.
NOTE: The knob assembly consists of two
concentric knobs. Knob adjacent to the
motor determines the upper limit setting.
Knob farthest from the motor is used to set
the lower limit. The upper limit knob limits
the maximum upward travel distance of the
load block along the drive screw. The
machine is shipped with the upper limit
knob already adjusted. Do not attempt to
rotate the upper limit knob as this will
damage the knob assembly and render
the limit mechanism useless. The lower
limit knob can be adjusted by turning as in
step 10.
6. With vents fully open, attach cables from
vent cabling system to load block cable.
Attach cables to machine with a 'balance'
pulley. Refer to section "Cabling Options".
Take up any loose tension on the cabling
with the hand winch.
7. Turn on electrical power to machine.
Warning!
To Avoid Shock, Disconnect Electrical Power Before Opening Machine.
Warning!
Never spray internals with water unless power is completely
disconnected from the unit.