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CAT 311 & 312 EXCAVATORS ARE THE BEST EXCAVATORS FOR FARMERS ESP WITH QUICK HITCH & WIDE TRENCHING BUCKETS FOR DRAINAGE AND FARM WORK.

 

 

 

 

 

For farmers in NZ the CAT 312 BL is a strong 13 tonne excavator and the best choice for the work of drains, swamps and lake clearing on the farm. The smaller 312B does not have a greater track wheelbase and long stick as the BL models which are a lot stronger but are also an ideal farm machine. But they were popular and still are in NZ. They are easy to use and comfortable with air condition, heater and lights & sound etc. They do use diesel around 4-5 gallons per hour but there is a warning buzzer that indicates when youre running low on gas to let you know. Overall they are the bext choice for medium size excavators and parts are easy to get via Goughs although not cheap?? Goughs told us they have never had a motor blow on these machines which is a good omen but like anything keep up the maintenance and they will serve you will.

 

The CAT 311 is also a good choice of excavators and very easy to use. They are nice inside and with the tilt bucket one can scrap the sizes of drains as well as banks etc and today the tilt bucket is a must for all kiwi farmers & is the best attachment to have rather than a non tilt bucket. Having the extyra piping allows you to use a grab bucket or grab rake

 

On top of that we are having made rakes and grab rakes for the clearing of forestry blocks so will keep you posted etc. There are many 312 A, B C D & now the newer E models in NZ

 

FUEL CONSUMPTION

Cat 320 for 7 hours average 6 gallons per hour consumption

Cat 311- 312 - 315 Excavator On full throttle uses about 4 gallons per hour depending on the work which is 30-35 gallons in 8 hours on the hour meter.

CL on a cat excavator? is a Model designator. The C is generally stands for the the 3rd generation of that particular model machine. The L usually designates that machine as having a longer (than normal) set of crawler tracks. An example would be Cat 320CL Excavator or the 312 BL

The 312B has a 3064 turbo diesel engine producing 84 flywheel HP (FWHP). It comes standard with a power and work mode selector including a new user mode, and very good operator seat and console with longer stick.

 

   

 

 

 

 

WHERE TO BUY PARTS IN NZ:

# Mufflers made Waitara: 06 8256351

# Doors & parts Lakeland:07 3470765   0274945886  info@heavy-machinery.co.nz

Lakeland Heavy Machinery 126-136 View Rd, P.O.Box 1976 Rotorua

# Excavator World Hokitika. : 483B Hau Hau Rd, Hokitika 7811 Tel: 03-756 8020

http://www.excavatorworld.co.nz/dismantling.html

# After Market Parts & used CAT or Komatsu Parts try Machinery Specialists in

Palmerston North as they import all the time : 063568459

FILTERS ARE EXPENSIVE SO TRY

www.transmax.co.nz Tel 0800 548035 for after market parts

 

EXCAVATOR WRECKERS

# Porter Group in Hamilton wreck many excavators as well. Tel: 07-849 3956

www.portergroup.co.nz

OVERSEAS PARTS:

http://www.vankeppelusedparts.com/dismantled.htm

ARE WRECKING: 2004 Cat 330cl

HYDRAULIC OIL FOR CAT 312

1/. Always ring Castrol for the right hydraulic oil to use in your CAT or any other machine. Terracat use 10w hydraulic oil but it pays to check an equivalent and for our 2001 CAT 312 BL we are told to use Castrol Transmax Offroad 10 oil as this has zinc & emulsifier in the mix.

Do not use Castrol AWS46

For Hydraulic oil try PartsDirect and they can deliver to you.


WATER IN YOUR HYDRAULIC SYSTEM

You can tell if your view sight glass in your right side hydraulic cabinet shows a whitish colour & then the lines will need to be flushed. To do this you need to stretch the boom and stick as far out as possible to crack the hydraulic lines at your bucket. You then need to change your 3 filters. The big return filter in your tank as well as the 2x filters in your right compartment. The cost from Terracat is around $360NZ just for the 3 filters but dont worry 1.9 Kubota filters are just as dear??.

Before you drain the oil from the tank, extend the stick, curl the bucket as far as it will go until the teeth are away from the excavator, then lower the boom until the teeth/front bucket touch the ground. If you have the right terrain drop the boom over the edge of a bank until the boom cylinders are as far down as they will go, if they bottom out even better.

Once you have drained as well as the lines and refilled the oil to the max mark on the sight gauge in the hydraulic tank, raise the boom, put the stick so it's hanging vertical towards the ground, and curl the bucket back towards the machine until when you lower the boom the base edge of the bucket & teeth are parallel to the ground. This is the correct position of the equipment to do the daily check of hydraulic fluid level.

At this point check the oil level again, you will find it will be well low. Top up to max mark and you're good to go. The hydraulic tank will not be pressurized when the oil is cold, only when warm. Obviously with any tank like that that builds pressure during operation be careful when you first crack the cap even with cold oil.

If you have water in the lines OK you can crack the end lines to get the water/oil out but if just changing oil you do not need to open any lines. When you open the tank nut always open when cold not hot & even then open gentle in case of pressure. Some nuts are very tight. Normally there will be a housing plate with 4 bolts underneath for the drain plug. If water then water is denser than oil so will sit on the bottom. Make sure you have some containers ready as theres around 98 litres in the tank. If you have other contaminants then you have to clean out everything & this is a huge job.

To take your return filter out theres a nack in doing it.

The return filter you need to take off 4 bolts. Make sure the outside housing is clean. Check & take off pressure of the vent nut on the filter case—don’t tighten hard as aluminium. Read instructions if any. Raise slightly with the handle –you will see a holding wire circlip around the inside lip but don’t take this off. Then turn left 90 degrees then another 90 degrees then raise the canister—it will be in a slot. Remove the cartridge and change the filter. You close off 2 valves when you take the canister out so all the dirt is inside the canister when you clean it and change the filter. Change filter then return same way with the slot lined up turn 180 degrees then at the end pushing down the canister to home it. Check O rings to make sure not flat & clean.

 

Transmax Offroad 10

Powershift Transmission FluidDescriptionCastrol Transmax Offroad 10 is a transmission lubricant using highly refined mineral oil, designed for use in powershifttransmissions, direct drive transmissions, wet disc brakes, final drives and differentials in off road machinery whereCaterpillar TO-4 is required. It is approved against ZF TE ML 03C and recommended for use in Komatsu & CAT off roadmachinery drivetrain and hydraulics.

AdvantagesGood oxidation stability maintains high temperature performance and transmission cleanliness during servicelife.Stable friction characteristics eliminate slippage and reduce brake noise.Excellent friction performance with a wide range of friction materials ensures smooth positive changes andenhanced friction material durability.Improved wear performance extends component life.

Only use AWS 46 for topping up if you break a hydraulic line as this oil is widely available but not when changing your oil always use Tansmax offroad 10 Castrol oil or Vectron 15W 40 C14 plus oil.

Caterpillar 312BL excavator 

Technical specifications:

312B L

Production year model/type

1998-2002

Engine:

Caterpillar

Cil/Turbo/intercooler

3054T

Engine model: 

4TI

Rated output: (Kw/Hp/Rpm)

66 /90 /1900

Maximum torque: (Nm/Rpm)

x

Displacement: (cm³)

3990

Fuel: 

Diesel

Hydraulic system:

Capacity hydraulic tank: (Ltr)

98

Capacity hydraulic system: (Ltr)

162

Pump hydraulic flow capacity: (Ltr/min)

2 x 120

Auxilary flow capacity: (option) (Ltr/min)

x

Maximum working pressure: (bar)

299

 

The 311 with swamp tracks

Dimensions & weight: (Monoboom)

Arm 2100mm

2500mm

3000mm

Operating weight: (Kg)

13270

13340

13418

Length transport with monoboom: (mm)

7610

7610

7630

Height cab: (mm)

2900

Height transport with monoboom: (mm)

2650

2655

2655

Body width: (mm) 

2550

Track width standard: (mm)

500

Width over tracks: (tracks 500mm)

2490

Width over tracks: (tracks 600mm)

2590

Width dozer blade: (mm)

2490 (optional)

Track length on the ground: (mm)

3040

Gradebility: (%/°)

x

Ground pressure: (kg/cm²)

0,38

Fuel tank: (Ltr)

250

Operating information: (Monoboom)

Arm 2100mm

2500mm

3000mm

Max. reach at ground level: (mm)

7810

8190

8640

Max. loading height: (mm)

5830

6080

6310

Max. digging depth: (mm)

5150

5550

6050

Max. cutting height: (mm)

8270

8520

8750

Maximum travel speed:(Km/h low-high)

5.0

 

Rake

Root rake for a 12 tonne

 

 


WEDGELOCK in Lower Hutt Toll-free: 0800 424 482 NZ are the main Kiwi Leaders in the design and manufacture of world-class excavator attachments, solving some of the toughest earthmoving challenges on the planet! These guys make rakes,rippers, rollers, lock tilt buckets any buckets, thumbs,grabs,couplings etc http://www.wedgelock.com. However we also have made in Thailand & China to your specs and can import CAT after market parts. We are having made rakes and grab rakes for these excavators.

 

 

When buying parts always quote your model and serial number as there are many variations. If you need parts etc for the 311 please ask us as we have a parts book and service manual for this model. A workshop manual can cost up to $650??? so not cheap.

If you need help check the costs for a diagnosis as not cheap:

Goughs & Mobile Solutions charge around $500NZ for an outcall and then once they return to do the work the bill rises so if you can do a lot yourself then better. Most cases ask for a quote first as its not cheap for the work and can cost 1000s.

 

 

 

We are preparing more pages to help farmers in NZ with maintenance & servicing etc.

CAT 311-312 [ CAB view & monitoring Spec pics ] [ CAT handy hints ] [ CAT 312 cab info ] [ CAT 311& 312 info views ] [ CAT 312 engine ]

We are also suppliers of NEW Komatsu spare parts for PCs up to 4 tonne as well looking for agents to buy our [ retread truck and bus tyres ]. RUBBER EXCAVATOR TRACKS FOR SALE all models : [ RUBBER TRACKS ] [ Kiwi bulldozer parts links ] [ Komatsu mini excavator parts ]. NZ hobby restoring [ Hitachi UH041 ] [ Excavator workshop Problems ]

 

 

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