Yale RS2 manual Exterior Finish, Preventative Maintenance, Recommended Spare Parts, Disassembly

WARNING

USING ANY GREASE OR LUBRICANT ON THE BRAKING SURFACESWILL CAUSE BRAKE SLIPPAGEAND LOSS OF LOAD CONTROL WHICH MAY RESULTIN INJURY AND/OR PROPERTY DAMAGE.

TO AVOID INJURY:

DO NOT USE ANY GREASE OR LUBRICANT ON BRAKING SURFACES. THE BRAKE IS DESIGNED

When lubricating parts adjacent to the brake, DO NOT use an excessive amount of lubricant which could seep onto the brake surfaces.

EXTERIOR FINISH

The exterior surface of the RS2 Lever Hoist has a durable, scratch resistant baked powder coating. Normally, the exterior surfaces can be cleaned by wiping with a cloth. However, if the finish is damaged, compatible touch-up paint can be purchased from Yale. Refer to page 13 for information on ordering paint.

PREVENTATIVE MAINTENANCE

A preventative maintenance program should be established to prolong the useful life of the hoist and maintain its reliability and continued safe use. The program should include frequent and periodic inspections (see page 5) with particular attention paid to lubrication of various components using the recommended lubricants (see Lubrication section for lubricating load chain and other parts).

RECOMMENDED SPARE PARTS

To insure continued operation, it is recommended that two friction discs (Key No. 673-13) be kept on hand at all times to replace friction discs that are worn, glazed or contaminated. Refer to page 12 for ordering information).

DISASSEMBLY

When disassembling and assembling the RS2 Lever Hoist, refer to the exploded view and parts list on pages 10 thru 13. These show the proper relationship of the parts, part names and the required quantities of the parts. In addition, please observe the following:

A. The liftwheel gear (673-11) is under spring pressure and may spring out when the gear cover (673-5) is removed.

B. Needle bearings are pressed into the gear cover (673-5) and frame (673-2). Unless they are to be replaced, do not attempt to remove these bearings.

C. If so equipped, do not attempt to disassemble the Load Limiter (673-59). The Load Limiter is calibrated by Yale, and no attempt should be made to recalibrate the device.

If it is not functioning properly, the entire Load

Limiter must be replaced.

D. Refer to page 8 for removal and installation of load chain. E. The brake cover (673-8) includes a rubber seal and care should be taken to make sure it is not cut or damaged.

ASSEMBLY

When reassembling the unit, lubricate the various parts as specified on page 6 and observe the following:

A. Maintain the proper relationship of the lever plunger (673-46) tip and the trigger (673-43) as shown above.

LeverU

PlungerP 673-46

Trigger 673-43

(673-25) to pinion (673-9) and slide this assembly into the frame (673-2).

C. Place liftwheel bearing (673-1) on liftwheel (673-10) and slide this assembly into frame (673-2).

D. Place the large end of the free-chain spring (673-20) in the recess of the liftwheel gear (673-11) and slide the gear onto the liftwheel (673-10) spline-spring end first.

E. Assemble snap ring (673-33) to suspension bolt (673- 48). Assemble upper hook (673-35) and hook blocks

Liftwheel

Gear

673-11

Free Chain Spring 673-20

(673-16). Place this assembly in recess on top of frame (673-2) and secure by sliding the suspension bolt thru holes in frame and hook block. Snap ring on suspension bolt must be on gear side of frame.

F. Push on liftwheel gear to compress the spring and attach the gear cover (673-5) to the frame (673-2)

G. Insert the cam pins (673-47) - ROUND END OUT - in the holes above and below boss on gear cover (637-5).

H. Assemble the cam (673-18) to the gear cover (673-5) so that the arrow is pointing towards “operate”.

Gear Cover 673-5

Cam Pins 673-47 Round End Out

I. Secure the cam using the cam washer (673-60) and

B. Assemble pinion washer (673-26) and then bushing

screw (673-29).

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