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
CHANGING HYDRAULIC OIL FOR CAT 312
[ Check here ]
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. You can also use Valvoline C4 10W & there are other W10s.
Do not use Castrol AWS46
For Hydraulic oil try PartsDirect and they can deliver to you.


Caterpillar 312BL excavator |
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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 |
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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 ] [ CAT 312BL overheating & trouble shooting ]
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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