The British Construction Equipment Forum  

Go Back   The British Construction Equipment Forum > EQUIPMENT > Technical Q&A


Reply
 
Thread Tools Search this Thread Display Modes
  #1   IP: 90.193.135.82
Old 07-03-2010, 09:35 PM
AtlasRob's Avatar
AtlasRob AtlasRob is offline
Prince of Jerusalem
 
Join Date: Jan 2010
Location: West Sussex
Posts: 6,208
Exclamation C@t TH560B forklift problem!

I only know the model as its written on the side.

What would make the front axle breather start putting oil out?

This machine is an 2004 by the plate and has arrived from a job in London, about 6000hrs from memory.
First thing I did was top the engine oil up, 2nd blow the tyres up, 3rd put it to work.
Seems fine with no major problems that a bloody good service wont put right.

The third time it was used, by another, he had unloaded some TVCB's and was tramping them about 100yds down the compound. I dont know how many trips he did, I did a full artic of 12 without problems, but at some point his banksman spotted an oil trail on the tarmac.

I have checked the hub oils, to level and not in too bad a condition.
Axle oil to level and black as coal.
Diff oil, to level and black as coal.

I didnt see the discharge and suspect a little goes a long way as none would appear to be missing and the colour would suggest is has not just been changed and overfilled?

Any suggestions, ideas?

06032010729.jpg 06032010734.jpg 06032010731.jpg
__________________
If their no good in the seat, put them on their feet
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Rotation excavation across the Nation.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #2   IP: 195.93.21.65
Old 07-03-2010, 09:53 PM
Traxcavator.'s Avatar
Traxcavator. Traxcavator. is offline
Knight of the Rose Croix of H.R.D.M
 
Join Date: Jan 2010
Location: Northern Hemisphere.
Posts: 13,027
Default Re: C@t TH560B forklift problem!

First thing that would spring to mind is overfill. Did he do a lot of high speed reversing ? Maybe the oil is to thin (viscosity ) wrong or just plain wore aht !!
__________________
Jumping the gun is never a wise move ......
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #3   IP: 90.193.135.82
Old 07-03-2010, 10:09 PM
AtlasRob's Avatar
AtlasRob AtlasRob is offline
Prince of Jerusalem
 
Join Date: Jan 2010
Location: West Sussex
Posts: 6,208
Default Re: C@t TH560B forklift problem!

Quote:
Originally Posted by Traxcavator. View Post
First thing that would spring to mind is overfill. Did he do a lot of high speed reversing ? Maybe the oil is to thin (viscosity ) wrong or just plain wore aht !!
I will ask him about the reversing. IMHO the oil is past its sell by date. How, why, does this lead to blow out? I have no experience with this sort of fault, so any guidance is greatly appreciated.
I have advised to keep using it, keep an eye on it and get it serviced.
__________________
If their no good in the seat, put them on their feet
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Rotation excavation across the Nation.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #4   IP: 195.93.21.65
Old 07-03-2010, 10:15 PM
Traxcavator.'s Avatar
Traxcavator. Traxcavator. is offline
Knight of the Rose Croix of H.R.D.M
 
Join Date: Jan 2010
Location: Northern Hemisphere.
Posts: 13,027
Default Re: C@t TH560B forklift problem!

Somtimes due to the position of the breather, reversing at prolonged speeds can force the oil out. The breather should be changed periodicaly too. If gear oil is overdue it turns to a thinner viscosity where as engine oil tends to sludge due to the carbon ingress.
__________________
Jumping the gun is never a wise move ......
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #5   IP: 95.150.138.38
Old 07-03-2010, 10:16 PM
d4c24a's Avatar
d4c24a d4c24a is offline
Knight of the Rose Croix of H.R.D.M
 
Join Date: Dec 2009
Location: hook hants
Posts: 7,833
Default Re: C@t TH560B forklift problem!

Rob ,i had a similar problem on a new 3cx ,when roading for a distance 1 mile or so ,the rear axle used to get hot and it would chuck oil out of the breather ,in 250 hrs the oil looked like sump oil,the yellow colour of the axle even changed to a different shade ,jcb came out took oil samples and said keep an eye on it
i changed machines at 4500hrs and it was still the same
who knows what was wrong
cheers graham
__________________
work hard those that do not rely on you

life is hard , but its harder if you're stupid
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #6   IP: 90.193.135.82
Old 07-03-2010, 10:35 PM
AtlasRob's Avatar
AtlasRob AtlasRob is offline
Prince of Jerusalem
 
Join Date: Jan 2010
Location: West Sussex
Posts: 6,208
Default Re: C@t TH560B forklift problem!

Quote:
Originally Posted by d4c24a View Post
Rob ,i had a similar problem on a new 3cx ,when roading for a distance 1 mile or so ....................
i changed machines at 4500hrs and it was still the same
who knows what was wrong
Thanks, Trax, I never thought about the breather being replacable, or the breakdown of the oil.

Did you have to add any oil to that back axle Graham? or is it as I suspect, a little making a big bloody mess

ON EDIT,

If he had been doing other jobs before unloading and then moving the TVCB's his axle would have naturally been hotter and the oil thinner than when I had used the machine. DING! thanks boys.
__________________
If their no good in the seat, put them on their feet
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Rotation excavation across the Nation.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by AtlasRob; 07-03-2010 at 10:39 PM. Reason: add a thought
Reply With Quote
  #7   IP: 88.87.189.64
Old 07-03-2010, 11:03 PM
Stock..'s Avatar
Stock.. Stock.. is offline
Knight of the East and West
 
Join Date: Jan 2010
Location: PRC ,Eire
Posts: 2,087
Default Re: C@t TH560B forklift problem!

Cat breather.jpg

Some of those sows gave grief with the diff's.
__________________
"Never underestimate the predictability of stupidity"......
Bullet Tooth Tony
Reply With Quote
  #8   IP: 90.193.135.82
Old 07-03-2010, 11:11 PM
AtlasRob's Avatar
AtlasRob AtlasRob is offline
Prince of Jerusalem
 
Join Date: Jan 2010
Location: West Sussex
Posts: 6,208
Default Re: C@t TH560B forklift problem!

Quote:
Originally Posted by Stock.. View Post
Some of those sows gave grief with the diff's.
A good question stock. I will try a shaped piece of steel on it in the morning if in the yard. Thanks.
__________________
If their no good in the seat, put them on their feet
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Rotation excavation across the Nation.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #9   IP: 195.93.21.65
Old 07-03-2010, 11:21 PM
Traxcavator.'s Avatar
Traxcavator. Traxcavator. is offline
Knight of the Rose Croix of H.R.D.M
 
Join Date: Jan 2010
Location: Northern Hemisphere.
Posts: 13,027
Default Re: C@t TH560B forklift problem!

Plonk a large lump of clay over it !! FIXED.
__________________
Jumping the gun is never a wise move ......
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #10   IP: 121.222.161.28
Old 07-03-2010, 11:27 PM
ianoz. ianoz. is offline
Knight of the East
 
Join Date: Dec 2009
Location: QUEENSLAND AUSTRALIA
Posts: 3,777
Default Re: C@t TH560B forklift problem!

Hi Graham ,Mate i thought every JCB backhoe did that. Both of the last ones we have had{and there is bugger all braking involved to heat up oil } you can not put your hand on the diff after travelling,but the front diff ,no problem . It is seperated from the engine and transmission by a tail shaft so it should not get heat transfer from them. I was told by the jcb fiters that the 4 CX had extra weight over the 3 cx and thats why its brakes turned to crap quickly .I was told to use the brakes as little as possible and use the gears to slow the machine down. Which is difficult as there is too big a gap between gears ..Sorry about hijacking your theard rob but it looks like the boys had you well on the way to being sorted .Ian .
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

 
Partner Links



All times are GMT +1. The time now is 05:15 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.