1.5 Inch and 2.5 Inch Pitch Steel Belt Conveyors
Item to Check |
Correct Adjustment |
|
Conveyor Belt Tension – Hinged Steel Belt |
Using hands pushing upward, 1/8 inch to 1/2 inch slack under headshaft at discharge |
|
Conveyor Belt Centered |
Tighten take-up bolt on side which belt is riding nearest or loosen opposite side as required to center belt and achieve proper belt tension |
|
Drive Chain Tension & Alignment |
Tension: 1/8” deflection per foot of span Alignment: 1/16” per foot of span |
|
Grease Bearings (Located on headshaft and tailshaft) |
Fill until small bead comes from seal See Chart Number 1 |
|
Ratchet Clutch Adjustment, if equipped |
Compressed length of spring to measure 1 5/8” Be sure to loosen set screw for adjustment and re tighten upon completion. |
|
Oil in Gear Reducer, if equipped |
See Chart Number 2 Change Oil after the first 250 hrs. Then every 6 months or 2500 hrs of operation |
Problem |
Possible Cause |
Solution |
|
Clutch Ratcheting or slipping |
Drive chain assembly misalignment or tensioned incorrectly |
Refer to tension and alignment in Maintenance Chart |
|
|
Excessive or Accumulated Load |
Avoid load buildup by running conveyor continuously. Do not manually surge load conveyor |
|
|
Carry-Back of Material into Conveyor |
Replace filled receptacle as required |
|
|
Improper ratchet clutch tensioning |
Refer to ratchet clutch adjustment in Maintenance Chart |
|
|
Damaged or missing chain assembly parts |
Review belt and repair or replace as required |
|
|
Accumulation of conveyed material or foreign objects inside of casing |
Reverse conveyor placing ball of newspaper or a rag on belt to act as wipeout for accumulated material |
|
Excessive Wear on Casing |
Conveyor not level |
Level conveyor |
|
|
Belt misalignment or tensioned incorrectly |
Refer to conveyor belt tensioning and alignment in Maintenance Chart |
|
Excessive Wear/Damage to Belting |
Belt misalignment or tensioned incorrectly |
Refer to conveyor belt tensioning and alignment in Maintenance Chart |
|
|
Accumulation of conveyed material or foreign objects inside of casing |
Reverse conveyor placing ball of newspaper on belt to act as wipeout for accumulated material |
|
|
Foreign object dropped on conveyor belt |
Replaced damaged portion of belting |
|
Motor overloads/overheats |
Ratchet clutch not set properly |
Refer to ratchet clutch adjustment in Maintenance Chart |
|
CONDITIONS |
|||
|
SPEED |
TEMPERATURE OF OPERATING ENVIRONMENT |
CLEANLINESS OF OPERATING ENVIRONMENT |
GREASING INTERVAL |
| 100 RPM |
Up to 120 ° F |
Clean |
6 to 12 Months |
|
500 RPM |
Up to 150 ° F |
Clean |
2 to 6 Months |
|
1000 RPM |
Up to 210 ° F |
Clean |
2 Weeks to 2 Months |
|
1500 RPM |
Over 210 ° F |
Clean |
Weekly |
|
Any Speed |
Up to 150 ° F |
Dirty |
1 Week to 1 Month |
|
Any Speed |
Over 150 ° F |
Dirty |
Daily to 2 weeks |
|
Any Speed |
Any Temp |
Very Dirty |
Daily to 2 weeks |
|
Any Speed |
Any Temp |
Extreme Conditions |
Daily to 2 weeks |
Boston Gear brand gear reducer replacement oil is recommended as follows:
Ambient Temperature |
Recommended Oil |
|
-30 ° to 225 ° F |
Mobil SHC 634 Synthetic |
|
40° to 90 ° F |
Mobil 600W Cylinder Oil |
|
80° to 125° F |
Mobil Extra Hecla Super Cylinder Oil |
© 1997-2007 Jorgensen Conveyors, Inc.