Yale Series Y80 manual PRE-OPERATION Checks

For trolleys which are to be mounted along the span of a beam not having open ends, measure exact width of beam flange and assemble trolley to hoist so that spacing between wheel flanges is 1/4" (see Figure 2-1) greater than beam width (3/8" if beam has curves). This is accomplished by rearranging the spacer washers on the bolts connecting trolley side plates to hoist mounting lug. If trolley is shipped separate from hoist, see instruction sheets furnished with trolley for orientation and installation.

When proper spacing has been determined, loosen mounting nuts (item 1, Figure 2-1) to allow trolley wheels to spread far enough to pass over edges of beam flange. (Some installations may require complete removal of one trolley side plate.) Using adequate equipment, carefully lift the hoist and trolley so the wheel treads will rest on the lower beam flange. Replace side plate and washers if removed for installation. Replace suspension stud nuts.

WARNING

Be certain that electrical power supply is off and locked in the open position before attempting any electrical connections to the hoist. This equipment must be effectively grounded according to the National Electric Code, or other applicable codes. If the grounding method used is through the trolley wheels, then each section of track must be grounded by metal-to-metal connection to the building ground. Certain environments may prevent proper grounding by this means. In this case a separate grounding conductor should be provided.

a. Follow National, State and Local Electrical Codes when providing electrical service to the hoist.

CAUTION

Recheck spacer washers to make certain that the number of washers between the side plate and hoist suspension lug are equal, and also the number on the outside of each side plate are equal. The suspension stud nuts should only be snugged up on the lockwashers until a load has been applied on the hook. A partial load (approx. 25% rated hoist load) placed on the hook will properly seat hoist in the trolley. Tighten suspension stud nuts only after hoist has been properly seated in the trolley.

CAUTION

208/230/460V single speed motors are reconnectable at the motor. See motor nameplate. Transformer may be reconnected for 200/230/460/575V. See transformer. Check with wiring diagram to make certain that motor, transformer and brake leads are properly connected.

b. Make electrical connections using the appropriate wiring diagrams furnished with the hoist. All electrical connections, including connections to collectors or power cord, shall be made only by qualified journeymen electricians.

WARNING

Mounting of the hoist-trolley unit on the monorail and final pre-operation inspection shall be performed only by qualified persons properly supervised.

11207A

Figure 2-1. Sectional View of Trolley showing proper wheel

and washer spacing.

2-3. CONNECTING HOIST TO ELECTRICAL SERVICE. Electrical service to the hoist may be power cable or a guarded system having sliding shoe collectors.

WARNING

The green wire provided in the power supply cable (when furnished) is a grounding wire and must be connected to a proper ground.

c. When trolley is shipped separate from hoist, see special instructions furnished with trolley for orientation and installation.

2-4. PRE-OPERATION CHECKS.

a. Check Oil Level and Grease Fittings. The gearcase has been filled with oil to the proper level and grease points for lower and upper sheaves have been lubricated at the factory. However, this should be checked before operating hoist. Check oil level by removing oil level plug with hoist in a level position. Oil level should be at the bottom edge of the plug hole. If not, add oil as specified in Section IV. Grease fittings in lower and upper sheave pins should show evidence of grease.

CAUTION

Overfilling of the gearcase may result in the excess fluid being expelled through the breather.

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