Show method of greasing, Civil Engineering

Assignment Help:

Method of Greasing : Greasing of fixed end requires 20 to 25 minutes. The lifting is hardly 10 mm, ensuring that the gap is created between saddle block and knuckle pin. Saddle is not lifted above collar to prevent lateral creep of the girder. Steel scraper is used to remove old grease, dust and dirt. The contact area is cleaned with oil. Grease is applied and then girder is lowered back.

Greasing of free end requires 45 to 50 minutes. Knuckle plate is tied to the saddle plate with wire rope having turn buckle arrangement to release the load from roller when the girder is lifted. When the girder is lifted about 10 mm and rollers are free, link plate and tooth bar are removed after opening the stud connections. All rollers should be taken out and cleaned with scraper and these are sand-papered with a fine sand-paper of zero grade. Rollers should be examined for any possible signs of flattening or minute cracks with a magnifying glass. Grease graphite grade 3 conforming to IS 508 is applied over the base plate evenly below the roller contact area. The rollers are then placed in position and grease applied at the top contact surface. Link plate and tooth bars are connected with care so that tooth bar is placed in the same inclination as per the drawing.

With the help of turn buckle of wire rope sling, the knuckle plate is lowered over the rollers. This will create gap between the saddle block and knuckle plate. Cleaning and greasing of this area is then carried out similar to the fixed end and girder is lowered back.


Related Discussions:- Show method of greasing

How the raft is designed as a floating foundation, A raft, 9 m × 27 m, is f...

A raft, 9 m × 27 m, is founded at a depth of 3 m in sand with a value of  N = 25 up to great depth. Verify the total load which the raft can support. If the raft is designed as

State the term- friction in tendon, State the term- friction in tendon ...

State the term- friction in tendon Considerable frictional loss takes place due to friction between the tendon and the material surrounding it, namely the concrete or the sheat

Advantages of unbonded post-tensioning systems, Advantages of unbonded post...

Advantages of unbonded post-tensioning systems Similarly, some advantages of unbonded post-tensioning systems over bonded post-tensioning ones may be written as under :  (a)

Concrete carriageway comparatively, Question Why is slump specified in ...

Question Why is slump specified in concrete carriageway comparatively low like 30mmwhen compared with normal concrete like 75mm? Answer Slump of concrete carriageway

Discuss about the term - end zone, Discuss about the term - End Zone It...

Discuss about the term - End Zone It is the length of a post-tensioned concrete member, at the end, which is required to get a distribution of prestress over the whole of the c

Design of masonry, Describe the different types of Ant proof courses

Describe the different types of Ant proof courses

Define the term - permanent load, Define the term - permanent load Wher...

Define the term - permanent load Where the permanent load is less than or equal to 25% of the design imposed load, deflections may be calculated using any elastic method. When

Which type of pile cap transfers loads equally to piles, Q. Which type of p...

Q. Which type of pile cap transfers loads equally to piles, flexible pile cap orrigid pile cap? Loads from columns transferring to pile cap persuade tensile forces at the bott

Can all utility detectors detect depth of utilities, Question Can all u...

Question Can all utility detectors detect depth of utilities ? Answer In Hong Kong, underground utility detectors are as a rule separated into two categories- electro

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd