two stage hydraulic pump

7/27/2019 Two Stage Hydraulic Pump

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InstructIons and precautIons

diib xivy by Hb Figh t ® .

3491 Mission Oaks Blvd., Camarillo, CA 93011

Vii wbi : h://www.hbfigh.m

saVe tHese InstructIons. read all

precautIons and InstructIons.

Copright© 2008 b Harbor Freight Tools®. All rights reserved. No portion of this document or an artwork contained

herein ma be reproduced in an shape or form without the epress written consent of Harbor Freight Tools.

Diagrams within this document ma not be drawn proportionall. Due to continuing improvements, actual product

ma differ slightl from the product described herein. Tools reuired for assembl and service ma not be included.

F hi qi m , 1-800-444-3353.

HYdraulIc2-staGe

puMp99742



SKU 99742 F hi qi, 1-800-444-3353.

contents

specIFIcatIons .......................... 3

unpackInG .................................. 3

IMportant saFetY

InForMatIon ............................3

General and specIFIc

saFetY WarnInGs.......................3

set up precautIons ....................4

use precautIons..........................4

unpackInG .......................................4

InstructIons For puttInG

Into use .................................... 4

operatInG InstructIons ...... 4

tool set up ....................................4

MaIntenance & serVIcInG ..... 5

please read tHe FolloWInG

careFullY ....................................6

parts lIst ...................................6

lIMIted 1 Year / 90 daYWarrantY ................................8



SKU 99742 F hi qi, 1-800-444-3353.

specIFIcatIons

Flow 11 GPM

Ma. Pressure 2900 PSI

Ma. Speed 3400 RPM

Shaft Dimension 0.5" (Diameter)1-3/8" Length

Hdraulic PumpInlet/Outlet

Inlet, 3/4" OD TubingOutlet, 1/2" -14 NPT

Mounting Holes 0.4" Diameter

unpackInGWhen unpacking, make sure that the item

is intact and undamaged. If an parts are missing

or broken, please call Harbor Freight Tools at thenumber shown on the cover of this document assoon as possible.

IMportant saFetY

InForMatIon

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General and Specic Safety Warnings

WarnInG r fy wig

ii. Failure to follow the warnings

and instructions may result in serious injury.

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qualied technician.

oy h hyi m b. 2900 psI m.

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Keep work area clean and well lit. Clutteredf.or dark areas invite accidents.

Keep children and bstanders awa whileg.operating. Distractions can cause ou to

lose control.

p fy2.B , wh wh y ig a. mm . Do not use while you

are tired or under the inuence of drugs, al -

cohol or medication. A moment of inattention

may result in serious personal injury.

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SKU 99742 F hi qi, 1-800-444-3353.

Many accidents are caused by poorly main-

tained tools.

Have our Hdraulic Pump serviced onl4.

by a qualied repair person using identical

replacement parts.

Maintain labels and nameplates on the tool.5.These carr important safet information.If unreadable or missing, contact Harbor

Freight Tools for a replacement.

This product is not a to. Keep it out of reach6.

of children.

WarnInG: The brass components of this product contain lead, a chemi-

cal known to the State of California tocause birth defects (or other reproduc-

tive harm). (California Health & Safetcode § 25249.5, et se.)

The warnings, precautions, and instructionsdiscussed in this instruction manual cannot cover

all possible conditions and situations that maoccur. It must be understood b the operator that

common sense and caution are factors which can-not be built into this product, but must be supplied

b the operator.

saVe tHese

InstructIons.

s u pi

Assemble onl according to these instruc-1.tions. Improper assembl can create haz-

ards.

Wear ANSI-approved safet goggles and2.

heav-dut work gloves during assembl.

Keep assembl area clean and well lit.3.

Keep bstanders out of the area during set4.up.

u pi

This product is not a to. Do not allow chil-1.

dren to pla with or near this item.

Use for intended purpose(s) onl.2.

Inspect before use; do not use if parts are3.loose or damaged.

Maintain product labels and nameplates.4.These carr important safet information.

If unreadable or missing, contact Harbor Freight Tools for a replacement.

uigWhen unpacking, check to make sure that

the item is intact and undamaged. If an parts are

missing or broken, please call Harbor Freight Toolsat the number shown on the cover of this manual

as soon as possible.

InstructIons For puttInG

Into use

r h entIre IMportant

saFetY InForMatIon i

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operatInG InstructIons

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IMportant saFetY InForMatIon

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to preVent

serIous InjurY

FroM accIdental

operatIon:

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This Pump is designed to be used with the1.

24-Ton Hdraulic Log Splitter SKU #91839.

Mount this Hdraulic Pump to the Coupling2.

which should alread be attached to the



SKU 99742 F hi qi, 1-800-444-3353.

driving engine. The 90º elbow should bepositioned underneath. Four 10mm bolts and

washers are reuired for this (not supplied).

Fig. 1

HdraulicPump Coupling

Gas Engine

3. The Drive Shaft (1) has a slot into which a

Flat Ke (40) is inserted. When the pump’sDrive Shaft (1) slides into the Coupling, the

Ke locks the pump’s Drive Shaft to the

Coupling.

Remove the Valve Blocks (26, 29) and put a4.few drops of oil in each of the openings sothat the gears do not eperience metal-to-

metal damage upon start up. This unit doesnot have an oil reservoir. Replace both Valve

Blocks.

Run an appropriate high-pressure line (not5.

included) from the outfeed of this pump to theinfeed of the Hdraulic Log Splitter such as a

4000 PSI hose with 1/2" ID. The outfeed portis located on top of the Back End Cap (22).

(See Fig.2.)

note: A few drops of oil must be placed in this

outfeed port before initial start up.

Run another high-pressure line (not included)6.from the outfeed port in the splitter to the

curved 90º elbow underneath the pump. (SeeFig. 2.)

If the unit is new and unused, this returna.hose should be lled with oil to prevent air

from getting into the sstem.Wig: Make sure the lever on the splitter

directs the circulating oil from the pump backto the pump and not the log splitter’s clinder

before the engine is started. Otherwise thesplitting blade will start moving immediatel.

MaIntenance & serVIcInGIn the event that the Pump must be removed1.from the log splitter, the rst task would be to

disconnect the hoses.

c m b i i a.i. A pan should be placed under thepump in order to catch dripping oil when

disconnecting the hoses.

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h immiy v i

fm ig.

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Remove the 10mm bolts holding the pump to2.the Coupling.

Pull the pump back, sliding the pump shaft3. out from the Coupling taking care not to lose

the Ke from the shaft. (See Fig. 1.)

Servicing the pump can now be done.4.

Valve Blocks (26)(Outfeed)

90º Elbow(Infeed)

High-pressureoutfeed hoseconnects here

Valve Block (29)

Front End Cap (9)

Drive Shaft (1)

0.4" MountingHoles

Back End

Cap (22)

Pump BodBo (13)

Fig. 2



SKU 99742 F hi qi, 1-800-444-3353.

please read tHe FolloWInG

careFullY

THE MANUFACTURER AND/OR DISTRIBUTOR HASPROVIDED THE PARTS LIST AND ASSEMBLy DIAGRAMIN THIS DOCUMENT AS A REFERENCE TOOL ONLy.NEITHER THE MANUFACTURER OR DISTRIBUTOR

MAKES ANy REPRESENTATION OR WARRANTy OF ANyKIND TO THE BUyER THAT HE OR SHE IS qUALIFIEDTO MAKE ANy REPAIRS TO THE PRODUCT, OR THATHE OR SHE IS qUALIFIED TO REPLACE ANy PARTS OFTHE PRODUCT. IN FACT, THE MANUFACTURER AND/ORDISTRIBUTOR ExPRESSLy STATES THAT ALL REPAIRS

AND PARTS REPLACEMENTS SHOULD BE UNDERTAKENBy CERTIFIED AND LICENSED TECHNICIANS, AND NOTBy THE BUyER. THE BUyER ASSUMES ALL RISK ANDLIABILITy ARISING OUT OF HIS OR HER REPAIRS TO THEORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO,OR ARISING OUT OF HIS OR HER INSTALLATION OFREPLACEMENT PARTS THERETO.

parts lIst

p dii Qy.1 Drive Shaft 1

2 Rolling Needle 2.5 4 24

3 Washer Ø16 18.8 1 1

4 Spring 1

5 Cover 1

6 Block 1

7 Valve Core 1

8 Valve Pole 1

9 Front End Cap qT450-10 1

10 Sliding Bearing L=14 6

11 O-Ring 52 1.8 1

12 O-Ring 3 1.8 1

13 Pump Bod 1

14 Thick Gear 2

15 O-Ring 54 1.8 3

16 O-Ring 9 1.8 3

17 Thin Gear Bo 1

18 Thin Gear 2

19 Column Pin A8 25 4

20 Spring Washer 8 8

21 Inner He Screw M8 110 8

22 Back End Cap 1

23 Column Pin 8 40 2

24 Intermediate 1

25 O-Ring 18 1.8 1

26 Valve Block 1

27 Valve Spring 1

28 Steel Ball SØ13 1

29 Flooding Valve Block 1

30 O-Ring 12 1.8 1

31 Tip Pole 1

32 O-Ring 5 1.8 1

33 Bearing Inner Sleeve 1

34 Bearing 61902 1

35 Oil Seat Ø11 28 7 1

36 Hole Shaft Circlip Ø28 1.2 1

37 Driven Gear Shaft 1

38 Rolling Needle 2.5 3 8

39 Wire Circlip 11 4

40 Flat Ke A4 25 1



SKU 99742 F hi qi, 1-800-444-3353.

A s s e m

b l y D i a g r a m



SKU 99742 F hi qi, 1-800-444-3353.

lIMIted 1 Year / 90 daY WarrantYHarbor Freight Tools Co. makes ever effort to assure that its products meet high ualit and dura-

bilit standards, and warrants to the original purchaser that for a period of ninet das from date of pur-

chase that the engine/motor, the belts (if so euipped), and the blades (if so euipped) are free of defectsin materials and workmanship. Harbor Freight Tools also warrants to the original purchaser, for a period of

one ear from date of purchase, that all other parts and components of the product are free from defectsin materials and workmanship (90 das if used b a professional contractor or if used as rental euip-ment). This warrant does not appl to damage due directl or indirectl, to misuse, abuse, negligence or

accidents, repairs or alterations outside our facilities, normal wear and tear, or to lack of maintenance. Weshall in no event be liable for death, injuries to persons or propert, or for incidental, contingent, special

or conseuential damages arising from the use of our product. Some states do not allow the eclusion or limitation of incidental or conseuential damages, so the above limitation of eclusion ma not appl to

ou. THIS WARRANTy IS ExPRESSLy IN LIEU OF ALL OTHER WARRANTIES, ExPRESS OR IM-PLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITy AND FITNESS.

To take advantage of this warrant, the product or part must be returned to us with transportationcharges prepaid. Proof of purchase date and an eplanation of the complaint must accompan the mer-

chandise. If our inspection veries the defect, we will either repair or replace the product at our election

or we ma elect to refund the purchase price if we cannot readil and uickl provide ou with a replace-

ment. We will return repaired products at our epense, but if we determine there is no defect, or that thedefect resulted from causes not within the scope of our warrant, then ou must bear the cost of returningthe product.

This warranty gives you specic legal rights and you may also have other rights which vary from

state to state.

3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353

r si nmb H:

n: If product has no serial number, record month and ear of purchase instead.

n:Some parts are listed and shown for illustration purposes onl, and are not available individuall as

replacement parts.

two stage hydraulic pump

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