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Land Pride BH3512 Operator's Manual

Manual is about: Backhoes

Summary of BH3512

  • Page 1

    Cover photo may show optional equipment not supplied with standard unit. © copyright 2008 printed read the operator’s manual entirely. When you see this symbol, the subsequent instructions and warnings are serious - follow without exception. Your life and the lives of others depend on it! ! Table of...

  • Page 2

    Bh3512 backhoes 340-131m 7/14/08 land pride table of contents table of contents © copyright 2008 all rights reserved land pride provides this publication “as is” without warranty of any kind, either expressed or implied. While every precaution has been taken in the preparation of this manual, land p...

  • Page 3

    1 important safety information 7/14/08 bh3512 backhoes 340-131m land pride table of contents ▲ important safety information these are common practices that may or may not be applicable to the products described in this manual. Safety at all times thoroughly read and understand the instructions given...

  • Page 4

    2 important safety information bh3512 backhoes 340-131m 7/14/08 land pride table of contents these are common practices that may or may not be applicable to the products described in this manual. Transport machinery safely ▲ comply with state and local laws. ▲ maximum transport speed for implement i...

  • Page 5

    3 important safety information 7/14/08 bh3512 backhoes 340-131m land pride table of contents prepare for emergencies ▲ be prepared if a fire starts. ▲ keep a first aid kit and fire extinguisher handy. ▲ keep emergency numbers for doctor, ambulance, hospital and fire department near phone. 911 wear p...

  • Page 6

    4 important safety information bh3512 backhoes 340-131m 7/14/08 land pride table of contents safety labels your backhoe comes equipped with all safety labels in place. They were designed to help you safely operate your implement. Read and follow their directions. 1. Keep all safety labels clean and ...

  • Page 7

    5 important safety information 7/14/08 bh3512 backhoes 340-131m land pride table of contents 19366 818-339c warning: high pressure 19366 839-933c warning: general 19366 839-932c caution: watch your step.

  • Page 8

    6 introduction bh3512 backhoes 340-131m 7/14/08 land pride table of contents parts and equipment needed to service the backhoe. The parts on your backhoe have been specially designed and should only be replaced with genuine land pride parts. Therefore, should your backhoe require replacement parts g...

  • Page 9

    7 introduction 7/14/08 bh3512 backhoes 340-131m land pride table of contents backhoe operation, maintenance & safety tips 1. Your backhoe must be mounted only on a tractor equipped with a category 1 or 2 hitch or skid steer hitch. Failure to do so may result in serious injury. 2. When servicing the ...

  • Page 10: Caution!

    8 section 1: assembly and set-up bh3512 backhoes 340-131m 7/14/08 land pride table of contents section 1: assembly and set-up tractor requirements ! Caution! Your backhoe must be mounted only on a tractor equipped with a category 2 and 3 hitch. Failure to do so may result in serious injury. Hydrauli...

  • Page 11

    9 section 1: assembly and set-up 7/14/08 bh3512 backhoes 340-131m land pride table of contents power beyond closed center kit part no. 340-084a for power beyond applications, a power beyond and closed center kit (part # 340-084a) must be purchased from your land pride dealer, then perform the follow...

  • Page 12: Caution!

    10 section 1: assembly and set-up bh3512 backhoes 340-131m 7/14/08 land pride table of contents b. Attach the 1/2” street ell to the return port on the reservoir. This is the port located on the right side of the reservoir. C. Attach the reservoir to the backhoe as shown in the drawings that come wi...

  • Page 13: Caution!

    11 section 1: assembly and set-up 7/14/08 bh3512 backhoes 340-131m land pride table of contents testing procedure for hydraulic circuits identification of terminology: 1. Psi (pounds per square inch)-represents power 2. Gpm (gallons per minute)-represents speed a glycerin filled hydraulic pressure g...

  • Page 14

    12 section 1: assembly and set-up bh3512 backhoes 340-131m 7/14/08 land pride table of contents boom, the power crowd side of the dipper stick, and both sides of the swing. If the circuit relief is faulty, it could be caused by dirt. This could be rectified by removing and cleaning the circuit relie...

  • Page 15

    13 section 1: assembly and set-up 7/14/08 bh3512 backhoes 340-131m land pride table of contents using tractor hydraulics all tractors if you wish to use the tractor hydraulic system, consult the dealer of your tractor for a safe and proper method of connecting the land pride backhoe to your tractor....

  • Page 16: Caution!

    14 section 1: assembly and set-up bh3512 backhoes 340-131m 7/14/08 land pride table of contents 2. Back tractor against backhoe in mounting position. 3. Connect tractor’s upper 3-point to backhoe. 4. Apply hydraulic power to the backhoe. 5. Raise the boom to take the tension off of the boom lock so ...

  • Page 17: Warning!

    15 section 1: assembly and set-up 7/14/08 bh3512 backhoes 340-131m land pride table of contents 9. Attach the backhoe to the lower lift arms of the tractor using the pins that are attached to the pallet. Refer to figure 1-9. 10. Remove the two 7/8” bolts in order to free the top link. Refer to figur...

  • Page 18

    16 section 1: assembly and set-up bh3512 backhoes 340-131m 7/14/08 land pride table of contents bucket installation refer to figure 1-10: assemble the bucket (#1) with the pins (#2) and roll pins (#3) as shown. Locking bar installation (optional) 1. After the backhoe is attached to the tractor in wo...

  • Page 19: Caution!

    17 section 2: operating instructions 7/14/08 bh3512 backhoes 340-131m land pride table of contents 19563 unloading backhoe from trailer figure 2-1 preparing for operation preparing the backhoe unlock the boom lock. You may have to raise the boom in order to relax the tension on the lock. Preparing t...

  • Page 20

    18 section 2: operating instructions bh3512 backhoes 340-131m 7/14/08 land pride table of contents when hauling the backhoe on a trailer lower the dipper stick to the trailer if possible. See figure 2-2. Observe the following precautions while transporting the backhoe with tractor: 1. When traveling...

  • Page 21: Caution!

    19 section 2: operating instructions 7/14/08 bh3512 backhoes 340-131m land pride table of contents digging suggestions ! Caution! Always be sure that the stabilizers maintain contact with the ground during digging operations. Take the time to readjust the stabilizers when necessary during digging. B...

  • Page 22

    20 section 2: operating instructions bh3512 backhoes 340-131m 7/14/08 land pride table of contents bucket after you have filled the bucket, do not pull the dipper stick any closer to the boom than is necessary in order to clear the hole. When the bucket is clear, swing it to the side to dump. Always...

  • Page 23: Caution!

    21 section 3: maintenance and lubrication 7/14/08 bh3512 backhoes 340-131m land pride table of contents section 3: maintenance and lubrication bucket tooth replacement to remove a tooth: 1. Heat the tooth with a torch at point “a” (this is the compressed area that overlaps “b”). 2. Hammer at the top...

  • Page 24

    22 section 3: maintenance and lubrication bh3512 backhoes 340-131m 7/14/08 land pride table of contents bucket cylinder base end type of lubrication: multipurpose grease quantity = as required 25 25 bucket pivot type of lubrication: multipurpose grease quantity = as required 50 multipurpose spray lu...

  • Page 25

    23 section 3: maintenance and lubrication 7/14/08 bh3512 backhoes 340-131m land pride table of contents boom pivot type of lubrication: multipurpose grease quantity = as required 25 boom cylinder rod end type of lubrication: multipurpose grease quantity = as required 25 20557 20555 boom cylinder bas...

  • Page 26

    24 section 3: maintenance and lubrication bh3512 backhoes 340-131m 7/14/08 land pride table of contents 20555 boom swing cylinder base end type of lubrication: multipurpose grease quantity = as required 25 25 stabilizer arms type of lubrication: multipurpose grease quantity = as required boom swing ...

  • Page 27

    25 section 4: specifications & capacities 7/14/08 bh3512 backhoes 340-131m land pride table of contents section 4: specifications & capacities bh35 series backhoes bh3512 tractor horse power rating 50 -150 maximum digging depth 12’ 6” digging depth 2” flat bottom 12’ reach from swing pivot 14’ 6” tr...

  • Page 28

    26 section 5: features and benefits bh3512 backhoes 340-131m 7/14/08 land pride table of contents section 5: features and benefits bh35 series backhoes features benefits tractor hp range 50-150 hp hitch – 3-point rigid hitch mount with stabilizing kit for maximum digging stability. Tubular construct...

  • Page 29

    27 section 6: troubleshooting 7/14/08 bh3512 backhoes 340-131m land pride table of contents problem cause solution sticking plungers in hydraulic valve excessively high oil temperature. Eliminate restrictions in pipe lines and filtering system. Dirt in oil. Change oil-clean system. Pipe fittings too...

  • Page 30

    28 section 6: troubleshooting bh3512 backhoes 340-131m 7/14/08 land pride table of contents slow operation and poor hydraulic system performance engine speed too low. Adjust rpm’s. Defective pump. Check pressure or replace. Load too heavy. Check line pressure. Faulty main relief valve. Clean or repl...

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    29 section 7: appendix 7/14/08 bh3512 backhoes 340-131m land pride table of contents section 7: appendix torque values chart in-tpi 1 n · m ft-lb 3 n · m ft-lb n · m ft-lb mm x pitch n · m ft-lb n · m ft-lb n · m ft-lb 1/4" - 20 7.4 5.6 11 8 16 12 m 5 x 0.8 4 3 6 5 9 7 1/4" - 28 8.5 6 13 10 18 14 m ...

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    30 section 7: appendix bh3512 backhoes 340-131m 7/14/08 land pride table of contents notes.

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    31 section 7: appendix 7/14/08 bh3512 backhoes 340-131m land pride table of contents warranty land pride warrants to the original purchaser that this land pride product will be free from defects in material and workmanship beginning on the date of purchase by the end user according to the following ...

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    Corporate office: po. Box 5060 salina, kansas 67402-5060 usa www.Landpride.Com.