Columbus McKinnon CHESTER HOIST EL-680 Operating And Maintenance Manual Download

Page: 10 / 15

P/N: EL-680 REV AA JULY 2018

FIGURE 2: CHAIN REEVING

1-1/2, 2, 5 & 6 Ton

3, 4, 8, 10 & 12 Ton

16, 20 & 24 Ton

FIGURE 3: LOAD SHEAVE TIMING

T indicates three timing marks in alignment.

Unloaded Loop

Loaded Side

Unloaded Loop

Loaded Side

Unloaded Loop

Loaded Side

Hoist Serial number
stamped here and on
Serial number Tag.

Note: looking at Hoist at
Motor Side.

Summary of Contents for CHESTER HOIST EL-680

Page 1: ..._____ Rated Load _________________________________________ RATED LOADS 1 TO 24 TONS Follow all instructions and warning for inspecting maintaining and operating this hoist The use of any hoist present...

Page 2: ...and parts services through a network of Master Parts Depots and Service Centers that are strategically located in the United States and Canada These facilities have been selected on the basis of their...

Page 3: ...of a hoist can create a potentially hazardous situation which if not avoided could result in minor or moderate injury To avoid such a potentially hazardous situation the operator shall 1 Maintain a fi...

Page 4: ...ecialized experience and study is essential to safe rigging operations For rigging information we recommend consulting a standard textbook on the subject Table of Contents Safety Precautions 3 5 Gener...

Page 5: ...s sizes of runway beams Other Chester Hoists and trolleys are built to fit a runway specified by our customers Regardless it is the customer s responsibility to apply such engineering calculations or...

Page 6: ...The hoist chain should not be wrapped around the load 2 The load should be attached to the hook by means of slings or other approved devices 3 The slings or other approved devices shall be seated prop...

Page 7: ...arts for signs of pitting or any deterioration of controls limit switches and push button station h Check chain container See Chain container installation notes ANNUAL INSPECTION Inspect the following...

Page 8: ...small loop of loose chain remains when the geared limit switch prevents further travel The peddle limit switch only acts If this switch falls 2 Brake Adjustment See Figure 1 a Remove nuts 1 and cover...

Page 9: ...parts have been altered replaced or repaired the hoist should be load tested The hoist should be tested using 100 percent of rated load TABLE 2 LUBRICATION PART LUBRICANT INSTRUCTIONS FREQUENCY Transm...

Page 10: ...IN REEVING 1 1 2 2 5 6 Ton 3 4 8 10 12 Ton 16 20 24 Ton FIGURE 3 LOAD SHEAVE TIMING T indicates three timing marks in alignment Unloaded Loop Loaded Side Unloaded Loop Loaded Side Unloaded Loop Loaded...

Page 11: ...d be traversed the entire length of the beam to check for beam interference pointe proper side clearance and effectiveness of the beam stops If everything is satisfactory the procedure should be repea...

Page 12: ...for wear Hook Moves in Wrong Direction 1 Three phase reversal 2 Improper connections 1 Reverse any two wires except the green ground wire at the power source 2 Check all connections against wiring dia...

Page 13: ...mation 1 Serial Number of your hoist see Figure 2 tor location 2 Your power supply voltage phase and cycles 3 Title of illustration for example 3 4 Ton bottom block assembly 4 Figure Number Part Name...

Page 14: ...he load block up allowing the hoist mechanism to fill the container Verify the chain is loading properly into the container WARNING Never load chain into the container by hand Hand loading will cause...

Page 15: ...WARRANTIES SET FORTH ABOVE SELLER MAKES NO OTHER WARRANTIES WITH RESPECT TO THE GOODS OR ANY REPLACEMENT PARTS WHETHER EXPRESSED OR IMPLIED INCLUDING ANY WARRANTIES OF MERCHANTABILITY FITNESS FOR A P...