Sunday

Lewmac - Tipper - Trailer - Excavator.

Mitsubishi Tipper Repairs.
Duel Axle Trailer Repairs
Kobelco SR 35-3 Excavator Repairs.

Invoice   #1501

Seat air bag blow-out.


Kobelco SR 35 -3 Engine mounting failure.


 Lower Mount worn out.



 Lower Mount


New Mounts ready for replacement.

 New upper mounting.


Sump plug leaking and threaded socket torn in the sump.
Cleaned and brazed the socket back into place.

Trailer brakes no working at all.
This is a pic of the brakes after a trip on say 15 km.

Two brake maxis leaking air badly.

new front axle spring brakes / threads damaged on the old pair.


 New Rear maxis.


Tuesday

Dorries Transmission Repair

Replace Electromagnetic G Clutch in Dorries Transmission.


Transmission arrives.

         Accompanied with detailed drawings.

 G Clutch is housed in the lower right hand side of the transmission.


Disassembly starts with the output shaft drive gear.


Removal of the "keyed" coupling presented some challenges.
After fabricating a special tool and some heat we could move on.


 The coupling cooperating and sliding off. 

This is the G clutch that needs to be replaced.


 Burnt out G clutch removed , notice the burn mark at 3 o'clock.


Testing the new G clutch before installation.


New G clutch assembly.

New G clutch fitted to drive shaft.


Dorries Transmission assembled and undergoing final inspection.


Ready for delivery.

Thursday

WEDGE BRAKE SERVICE AND ADJUSTMENT.


Always seems so easy to the truck driver.

"Hey mate , I'll get it done in a jiffy."

Yes , will here is how you do it in a jiffy.

9 hours later.😢😢😢😢




Please click on the link below for the Arvin Meritor
Service Manual.



Please click the link below for the Meritor Rockwell pdf
Service Manual
https://www.axletech.com/at-admin/resources/Manuals/mm-4r.pdf

















Spiral Logistics - 59884 S - Trailer.

SPIRAL LOGISTICS - PROJECT NO. 12


Requested to follow through with safety adjustments.
Spec's and instruction provided by client.





Completed walk around of Project No 12.




Find below before and after pics of the job.


Project No 12



Damaged rear tail board and signage.


Bent and damaged access ladders.


Damaged access ladders both sides of the truck.


No timber box and tool boxes damaged.


Fabricated and painted rear tail gates , secured with chain and d shackles.


Rear end straightened out and new signage fitted.


Headboard straightened and painted - new pins and rope on timber.


New steps fabricated - new timber box fitted - toolbox repaired.


New load binders fitted - new rope to bearers.


Tailgates repaired / fabricated / fitted to rear.


Deck painted with yellow strips - new pins .


Monday

VW Volkswagen Audi Ignition Miss-fire Coil Pack

VW Golf Ignition Misfire


The Volkswagen 1.8L turbo engine (AGU) is used in many VW and Audi models from 1996 - 2003
 including Golf, Bora, A3 and A4





VW Golf Ignition Misfire

The Volkswagen 1.8L turbo engine (AGU) is used in many VW and Audi models from 1996 - 2003 including Golf, Bora, A3 and A4. This engine is known for ignition misfires. The ignition system uses 4 coils (coil on plug) and an ignition module that is triggered by the ECU.

One of the most common failures with this type of ignition system is the module fails to trigger the ignition coils. 

This condition is usually misdiagnosed as a faulty ignition coil. 

The following information will assist to locate and rectify this problem.


SYMPTOMS

• Loss of power • Misfires • Poor fuel consumption • Codes P0301, P0302, P0303, P0304 • Engine stalling


COIL TEST


 • Locate the weak cylinder by cylinder balance test.

• Check the spark output at the ignition coil. The spark should be a bright blue colour and audible.

• Another quick test is to swap the ignition coil with another coil from a different cylinder. Recheck by performing     a cylinder balance test.




WIRING HARNESS TESTS

• Test the ignition coil power supply and earth using a multimeter (Ignition On, Battery voltage to coil)

• Test the ignition negative trigger using an LED test light (Check for primary ignition pulse)

• Check the wiring harness for open circuits as this is a common problem. Test continuity between the ignition coil and the ignition module.


IGNITION MODULE TESTS

• The ignition module is located behind the air box

• Check the ignition module input and output (pulse)

• Check the earth circuit to the ignition module

• Refer image


REMEDY

• Replace the ignition coil if found to be faulty

• Replace the ignition module

• Repair wiring harness

• Check the spark plugs if coils are replaced







Coil Connector Problems.

Check out the video below.











Sunday

4 IN ONE BUCKET REBUILD - REPAIRS


Costly damage can be caused to equipment when routine maintenance is not carried out or overlooked.

Here is a case example of this.

After operating the skid steer loader in the mud and slosh the operator was most probably tired and fed-up. He parked the machine and never gave it a thought again until the 4 in-one bucket rams started leaking oil profusely.

It seemed strange that both cylinders would start leaking at exactly the same time.

Can you spot the reason why?


Mud has filled the cavity that the hydraulic cylinder is housed in.


Notice the damage to the shaft and the hard mud caked to the back of the ram.


The mud has made a solid wedge behind the ram.


Left hand side cylinder does not look any better.


New rams on the left - Bent rams to the centre - Old cylinder to the right.


New rams modified to fit and installed to the 4 way bucket.


Grease nipples greased up and grease path checked.


So what was the problem?
Well as you have rightly guessed, the ram shafts bent like bananas , wore the seals and leaked oil.
But how or why did this happen?
Yes that's right, the hard mud did not allow the cylinder to pivot as the bucket was opened and closed.
The hydraulic force was far greater and stronger that the ram rod and so bent it.

Conclusion - Proper routine maintenance would have prevented this failure.
After each muddy operation machines and equipment should be washed down as soon as possible
 and all mud and debris removed.
Months of poor maintenance caused this problem.

Implement Preventative Maintenance!