Difference between revisions of "Annual guillotine checks"
From SSS Wiki
Jump to navigationJump to search (Created page with 'Following the failure of a Tost guillotine to cut properly at its annual check the following procedure is to be carried out at each annual check: Instructions for completing Tos…') |
|||
| (13 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
| − | + | To ensure continuous reliability, it is essential that the following procedure should be carried out at each annual guillotine check: | |
| − | + | *Cut cable at first join with bolt cutters and withdraw through paying on gear | |
| − | + | *Hands clear! | |
| − | + | *Operate guillotine | |
| − | + | *Check clearance between closed guillotine blades (should be < 0.005" or 0.013 mm). (Blade clearance may be adjusted using brass rubbing screws near bottom of blade guides.) | |
| − | + | *Support paying-on gear and remove six nuts and bolts | |
| − | + | *Remove paying on gear | |
| − | + | *Remove assister springs | |
| − | + | *Remove guillotine actuating pivot bolt | |
| − | + | *Remove four bolts securing cable guide | |
| − | + | *Remove remaining four bolts securing guillotine blade retaining slides | |
| − | + | *Carefully withdraw removing moving blade and coaxial spring assembly - take care with compressed springs | |
| − | + | *Clean all detritus from mechanism especially any that could prevent full travel of guillotine blade | |
| − | + | *Clean and inspect all metal surfaces | |
| − | + | *Check guillotine blades for damage/cracking and repair/replace if necessary | |
| − | + | *Lubricate springs and sliding surfaces with lithium based grease | |
| − | + | *Replace everything but the paying in gear in reverse order. (The moving blade is replaced in a similar way to that used to load the guillotine using a lvere to compress the springs) | |
| − | + | *Load guillotine | |
| − | + | *Thread two pieces of cable through the guillotine assembly | |
| − | + | *Hands clear! | |
| − | + | *Fire guillotine - should cut two wires cleanly | |
| − | + | *If OK - replace paying in gear and sign off | |
| − | + | *If not detailed analysis will be required. | |
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
Equipment required: | Equipment required: | ||
Feeler gauges | Feeler gauges | ||
| + | |||
Metric socket set and spanners | Metric socket set and spanners | ||
| Line 39: | Line 34: | ||
Lub grease | Lub grease | ||
| − | Guillotine setting | + | Guillotine setting equipment. |
Latest revision as of 15:42, 19 May 2017
To ensure continuous reliability, it is essential that the following procedure should be carried out at each annual guillotine check:
- Cut cable at first join with bolt cutters and withdraw through paying on gear
- Hands clear!
- Operate guillotine
- Check clearance between closed guillotine blades (should be < 0.005" or 0.013 mm). (Blade clearance may be adjusted using brass rubbing screws near bottom of blade guides.)
- Support paying-on gear and remove six nuts and bolts
- Remove paying on gear
- Remove assister springs
- Remove guillotine actuating pivot bolt
- Remove four bolts securing cable guide
- Remove remaining four bolts securing guillotine blade retaining slides
- Carefully withdraw removing moving blade and coaxial spring assembly - take care with compressed springs
- Clean all detritus from mechanism especially any that could prevent full travel of guillotine blade
- Clean and inspect all metal surfaces
- Check guillotine blades for damage/cracking and repair/replace if necessary
- Lubricate springs and sliding surfaces with lithium based grease
- Replace everything but the paying in gear in reverse order. (The moving blade is replaced in a similar way to that used to load the guillotine using a lvere to compress the springs)
- Load guillotine
- Thread two pieces of cable through the guillotine assembly
- Hands clear!
- Fire guillotine - should cut two wires cleanly
- If OK - replace paying in gear and sign off
- If not detailed analysis will be required.
Equipment required:
Feeler gauges
Metric socket set and spanners
Releasing oil and small scraper/rags to clean mechanism and slides
Lub grease
Guillotine setting equipment.
