Lift-Master 65 3012 1 User Manual

Self-Regulating Heater Modification

Used on Model “GH” Operators

65-30121 OR 65-30122

APPLICATION:

A self-regulating immersion heater, inserted into the drain opening of the gear reducer, which keeps gear oil warm to prevent sluggish operation or overloading in cold weather.

PACKING LIST:

PART NUMBER

11-12191 21-3260 27-12192

DESCRIPTION

Heater Plug Transformer, 230V 50 VA Immersion Heater

GEAR REDUCER

QUANTITY

1 1 1

IMMERSION HEATER

SELF-REGULATING HEATER INSTALLATION

1) If the operator is already installed it will be necessary to take it down or the oil will run out and it will be difficult to refill.

2) Tilt the operator so that the hand-chain housing is up and remove the drain plug adjacent to the hand-chain housing (opposite the motor) from the gear reducer. If any oil is lost replace it with an equal amount of Mobil 1 or equivalent.

3) Insert the heater plug into the oil drain hole but do not tighten it at this time.

4) Insert the immersion heater into the heater plug as far as it will go. Tighten the heater plug. The plug will close around the heater and hold it in place.

TRANSFORMER

(230-460 Volt Kit Only)

HEATER PLUG

WARNING

DISCONNECT POWER AT THE FUSE BOX BEFORE PROCEEDING.

5) a) On 120 Volt Operators connect the two heater wires to terminals L1 and L2.

b) If the operator is not 120 Volts connect the two heater wires to the black and white (primary) wires on the 50VA transformer included with the kit. (Wire nut all other transformer wires)

6) Be sure to route the heater wires away from moving parts and the chain hoist mechanism. Remember these wires carry 120 Volts.