PRO LI and PRO-LH medium duty jackshaft operaron are designed for conmercial high lift, vertical lift,
rcliing doors and rolling grilles provided that doors are ddven by a drive shaft with low duty cycles. Model
PRO-LH is ess€ntially the sane as nodel PRO-IJ vith the exc€ption that th€ PRO LH ope'ator
incorporates a chain hois. for manual operatio. ofthe doo'.
STANDARD OPER-ATOR WEIGHT: l5-5, ZBS
MOTOR:Int€mitte duty 1000 RPM motor witl high starting torque.
- Themally proiected by a built in themostat that cuts power io ihe motor and control circuit
when overheatjng.
- Horsepower: l/2HP
Voltage: 115V, 220V l-phase
REDUCTION: Prinary: (4L) V-belt and pulleys (1.5" to 7" dianeler)
Seco ary: #4I chain and sprockets
OUTPUT SHAFT SPEEDT 58 RPM
BRAKE : Solenoid actrated drun aDd brale shoe braking system to prevent
coasting and maintain door posjtion.
WIRING Tl?E (STANDARD): C-2 Widng consta pressure on close, nomentary contact on open and
stop. Wircd to accept reversing edse, 'adio cont ol, pholocelis, loops and OPEN/CLOSE devices.
NOTE: Ifnonentan contact on close (82) irtins L' d6ired: P.e-nstzll $e pprcle wne onro
terminal #5.
TRANSFORMER: 24VAC control cicuit, supplies power to drive cont'ol relays with l5VA power
available for extemal deYices.
LIMIT {)JUSTMENT: 4 micro svitches thal contol door tavel. These Limit swilches are acrivared by
tully adjustable screw t'"e cams.
EMERGENCY DISCONNECT: Floor level cable discomect system with electrical cut out feanrre
alows pe$otr to manually operate tle door by hand (PRO L, or by chain hoist (PRO-LH) h case
of emergency.
CLUTCH: Adjustable ftctioD clutch to minimize damage to door operator, door or vehicles.
OP[RATOR DIMENSTONS:
BRACKET MOUNT
t5 t/2'
14 1/4'
a v16'
