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© 2018 Columbus McKinnon Corporation. All Rights Reserved 

P/N: EL-680  REV AA JULY 2018 

NOTE: Any hook that is twisted or has throat opening 
in excess of normal, Indicates abuse or overloading of 
the hoist. When a hook is found to be in this condition, 
other load bearing components of the hoist should be 
inspected for damage. 

d.  Check chain for wear, twist or distortion. 
e.  Check for damaged or improperly working 

safety latch. 

 

QUARTERLY INSPECTION 

Inspect the following Items at 90-day Intervals: 

a.  Check all items under daily inspection. 
b.  Check for loose bolts, screws and nuts. 
c.  Inspect load chain wheels for cracks and 

excessive wear. 

d.  Inspect for   worn,   corroded,   cracked or 

distorted parts. 

e.  Check for proper operation of brake. See 

BRAKE OPERATION. 

f.  Inspect for excessive wear of chain.  See 

paragraph CHAIN MAINTENANCE. 

g.  Check electrical parts 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 Items annually: 

a.  Check all items under dally and 90-day 

Interval Inspection. 

b.  Check hooks for cracks by means of a 

magnetic particle teat or other suitable crack 
detecting teat. 

c.  Inspect supporting structure and trolleys (if 

used) for continued ability to support the 
imposed loads. 

d.  Check brake for worn linings and discs. See 

ADJUSTMENTS AND REPAIRS. 

NOTE: A hoist which has been idle for a period of one 
month or more, but less than six months, should be 
given an inspection of those Items listed under DAILY 
INSPECTION. A hoist which has been idle for a period 
of six months or more, should be given a complete 
inspection. 

 

 

 

 

FIGURE 1: BRAKE ADJUSTMENT 

FIGURE 1A: BRAKE COIL CONNECTIONS 

 

 

NOTE: These instructions are for the Chester Hoist 
brake only. For other brakes, see manufacturer’s 
information provided in the parts manual. 

 

Air Gap 

Air Gap 

Содержание CHESTER HOIST EL-680

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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