Multiquip c-30hdn User Manual

OPERATION AND PARTS MANUAL

SERIES

MODEL C-30HDN

CONCRETE PUMP

(NISSAN ENGINE)

Revision #11 (03/29/12)

THIS MANUAL MUST ACCOMPANY

THE EQUIPMENT AT ALL TIMES.

PROPOSITION 65 WARNING

PAGE 2 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

SILICOSIS/RESPIRATORY WARNINGS

WARNING

SILICOSIS WARNING RESPIRATORY HAZARDS

Grinding/cutting/drilling of masonry, concrete, metal and
other materials with silica in their composition may give
off dust or mists containing crystalline silica. Silica is a
basic component of sand, quartz, brick clay, granite and
numerous other minerals and rocks. Repeated and/or
substantial inhalation of airborne crystalline silica can
cause serious or fatal respiratory diseases, including
silicosis. In addition, California and some other
authorities have listed respirable crystalline silica as a
substance known to cause cancer. When cutting such
materials, always follow the respiratory precautions
mentioned above.

WARNING

Grinding/cutting/drilling of masonry, concrete, metal and
other materials can generate dust, mists and fumes
containing chemicals known to cause serious or fatal
injury or illness, such as respiratory disease, cancer,
birth defects or other reproductive harm. If you are
unfamiliar with the risks associated with the particular
process and/or material being cut or the composition of
the tool being used, review the material safety data
sheet and/or consult your employer, the material
manufacturer/supplier, governmental agencies such as
OSHA and NIOSH and other sources on hazardous
materials. California and some other authorities, for
instance, have published lists of substances known to
cause cancer, reproductive toxicity, or other harmful
effects.

Control dust, mist and fumes at the source where
possible. In this regard use good work practices and
follow the recommendations of the manufacturers or
suppliers, OSHA/NIOSH, and occupational and trade
associations. Water should be used for dust
suppression when wet cutting is feasible. When the
hazards from inhalation of dust, mists and fumes cannot
be eliminated, the operator and any bystanders should
always wear a respirator approved by NIOSH/MSHA for
the materials being used.

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 3

TABLE OF CONTENTS

MAYCO C-30HDN (NISSAN)

CONCRETE PUMP

Proposition 65 Warning ............................................. 2

Silicosis/Respiratory Warnings ................................. 3

Table of contents ....................................................... 4

Parts ordering procedures ....................................... 5

Pump Specifications .................................................. 6

Engine Specifications ................................................. 6

Pump Dimensions ...................................................... 7

Safety Message Alert Symbols ............................. 8-9

Rules For Safe Operation .................................. 10-12

Operation And Safety Decals .................................. 14

Important Hand Signals ........................................... 15

Pump Components ............................................ 16-17

Control Box Components......................................... 18

Engine Components ................................................ 19

General Information ................................................. 20

How It Works....................................................... 21-22

Inspection ........................................................... 24-26

Initial Start-Up .................................................... 27-28

Operating Information ........................................ 29-32

Towing Guidelines .............................................. 33-34

Trailer Safety Guidelines .................................... 35-37

Maintenance (Pump) ......................................... 38-47

Engine RPM Adjustment .................................... 48-49

Engine Troubleshooting ..................................... 50-51

Wiring Diagram ........................................................ 52

Wiring Diagram (Trailer Lights) ............................... 53

Appendix —

Concrete Mix Information ............................ 54-56

Recommended Shotcrete System .............. 57-58

Recommended Shotcrete Accessories ...... 59-60

Slump Test Procedure ....................................... 60

Explanation Of codes In Remarks Column ............ 62

Suggested Spare Parts ........................................... 63

COMPONENT DRACOMPONENT DRA

COMPONENT DRA

COMPONENT DRACOMPONENT DRA

WINGSWINGS

WINGS

WINGSWINGS

Manifold Assembly ............................................. 76-77

Frame Assembly ................................................ 78-79

Axle Assembly .................................................... 80-81

Muffler, Air filter and Stop Switch Assembly ..... 82-83

Clutch Assembly................................................. 84-85

Radiator & Engine Mounting Bracket Assy. ...... 86-87

Radiator, Mounting And Hoses Assembly ........ 88-89

Control Box Mounting Bracket Assembly.......... 90-91

Control Box Assembly ........................................ 92-93

Battery Assembly ............................................... 94-95

Fuel Tank Assembly ........................................... 96-97

Hopper Assembly ............................................... 98-99

Hood Assembly .............................................. 100-101

Lubrication Panel Assembly .......................... 102-103

Control Cable Assembly ................................ 104-105

Solenoid and Fuseholder Assembly ............. 106-107

COMPONENT DRACOMPONENT DRA

COMPONENT DRA

COMPONENT DRACOMPONENT DRA
(NISSAN ENGINE)(NISSAN ENGINE)

(NISSAN ENGINE)

(NISSAN ENGINE)(NISSAN ENGINE)

Cylinder Block & Oil Pan Assembly .............. 108-109

Cylinder Head & Valve Cover Assembly ....... 110-111

Crankcase Ventilation Assembly ................... 112-113

Piston, Crankshaft & Flywheel Assembly ..... 114-115

Camshaft & Valve Mechanism Assembly...... 116-117

Manifold Assembly ......................................... 118-119

Oil Pump Assembly ........................................ 120-121

Carburetor Assembly ..................................... 122-123

Horn Assembly ............................................... 124-125

Fuel Pump Assembly ..................................... 126-127

Fuel Piping Assembly .................................... 128-129

Governor (Mechanical) & Fitting Assembly .. 130-131

Governor Mechanical Assembly ................... 132-135

Exhaust Tube and Muffler Assembly............. 136-137

Water Pump Assembly................................... 138-139

Ignition System Assembly.............................. 140-141

Distributor Assembly ...................................... 142-143

Alternator Assembly ....................................... 144-145

WINGSWINGS

WINGS

WINGSWINGS

Nameplate and Decals ...................................... 64-65

Compensator Piston Rod Assembly ................. 66-67

Connector Rod - Drive Side Assembly ............. 68-69

Rocker Assembly ............................................... 70-71

Countershaft Assembly ..................................... 72-73

Crankshaft Assembly ......................................... 74-75

PAGE 4 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

Terms and Conditions Of Sale — Parts ................ 146

Mayco Pump Warranty ...........................................147

NOTE

Specification and part
number are subject to change
without notice.

PARTS ORDERING PROCEDURES

r

Ordering parts has never been easier!

Choose from three easy options:

January 1

Effective:

st

, 2006

Best Deal!

Order via Internet (Dealers Only):

Order parts on-line using Multiquip’s SmartEquip website!

■ View Parts Diagrams

■ Order Parts

■ Print Specification Information

Goto www.multiquip.com and click on

Order Parts

Order via Fax (Dealers Only):

All customers are welcome to order parts via Fax.
Domestic (US) Customers dial:
1-800-6-PARTS-7 (800-672-7877)

Non-Dealer Customers:
Contact your local Multiquip Dealer for
parts or call 800-427-1244 for help in
locating a dealer near you.

to log in and save!

Order via Phone:

If you have an MQ Account, to obtain a Username
and Password, E-mail us at: parts@multiquip.

com.

To obtain an MQ Account, contact you
District Sales Manager for more information.

Use the internet and qualify for a 5% Discount
on Standard orders for all orders which include
complete part numbers.*

Fax your order in and qualify for a 2% Discount
on Standard orders for all orders which include
complete part numbers.*

Domestic (US) Dealers Call:

1-800-427-1244

International Customers should contact
their local Multiquip Representatives for
Parts Ordering information.

Note: Discounts Are Subject To Change

Note: Discounts Are Subject To Change

❒ Dealer Account Number
❒ Dealer Name and Address
❒ Shipping Address (if different than billing address)
❒ Return Fax Number
❒ Applicable Model Number
❒ Quantity, Part Number and Description of Each Part

www.multiquip.com

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 5

When ordering parts, please supply:

❒ Specify Preferred Method of Shipment:
✓ UPS/Fed Ex ✓ DHL

■ Priority One ✓ Tr uck

■ Ground

■ Next Day

■ Second/Third Day

NOTICE

All orders are treated as Standard Orders and will

ship the same day if received prior to 3PM PST.

WE ACCEPT ALL MAJOR CREDIT CARDS!

C-30HDN PUMP — PUMP SPECIFICATIONS

SNOITACIFICEPSPMUPNDH03-C.1ELBAT

epyTpmuPnotsiPgnitacorpiceR

etaRgnipmuP*ruohrep.sdy.uc52otpU

thgieHgnipmuPlacitreV)m37.54(.tf051otpU

iDgnipmuPlatnoziroH*)m251-221(.tf005-004

ecnats

eziSetagerggAmumixaM)mm7.21(sunim.ni2/1

yticapaCreppoH.cte.tf.uc6

esoHlairetaM

thgieW)gK833,1(.sbl059,2

xoBlioebuL)sretiL5.62(snollaG7

lortnoCetomeRd

eziSeriT

*

.snoitidnocetisbojdnadesu

"2/1-2ro"2

)mm5.36ro8.05(

radnatSelbac.tf521

"41x"53.7

)mm653x781(

ezisenil,pmuls,ngisedximnognidnepedyravlliwtuptuoemuloV

SNOITACIFICEPSENIGNE.2ELBAT

ledoMENIGNELAIRTSUDNI51ANASSIN

epyT

ekortSXeroB

oitaRnoisserpmoC1:0.9

tnemecalpsiD)cc784,1(.uc487.09

tuptuOsuounitnoC.M.

yticapaCknaTleuF)sretil35(snollaG.S.U41.xorppA

epyTleuFenilosaGdedaelnU

enignE

thgieWteNyrD).gK301(sbl722

yticapaCliOebuL)tq8/

deepSenignE

daoLlluF

deepSenignE

eldIlluF

renaelCriAepyTnroHriA

noitacirbuLenignE

dohteMgnitratStr

gulPkrapSSE4B

paGgulPkrapS

)HxWxL(noisnemiD

oh

.ni32.3x99.2

)mm28x67(

P.R0063/.P.H93

3-3(sretil2.3

001±mpr578

atScirtcelE

.ni9.0-8.0

)mm530.0-130.0(

675x8.035x8.725(

ednilycelgnis,evlavdaehrevo,ekorts4

enigneenilosagtfahslatnozir

)05-/+mpr0572daoLoN(001±mpr0562

)001-/+mpr0572daoL(

)edarGliO(03-W01EAS

)ssalCecivreS(FSroGS

.ni96.22x09.02x87.02

)mm3.

PAGE 6 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — PUMP DIMENSIONS

Figure 1. C-30HDN Concrete Pump Dimensions

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 7

C-30HDN PUMP — SAFETY MESSAGE ALERT SYMBOLS

FOR YOUR SAFETY AND THE SAFETY OF OTHERS!

Safety precautions should be followed at all times when
operating this equipment. Failure to read and understand
the Safety Messages and Operating Instructions could result
in injury to yourself and others.

This Owner's Manual has been

NOTE

Refer to the engine manufacturers instructions for data
relative to its safe operation.

Before using this pump, ensure that the operating
individual has read and understands all instructions in
this manual.

SAFETY MESSAGE ALERT SYMBOLS

The three (3) Safety Messages shown below will inform you
about potential hazards that could injure you or others. The
Safety Messages specifically address the level of exposure
to the operator, and are preceded by one of three words:

DANGER, WARNING, or CAUTION.

DANGER

You WILL be KILLED or SERIOUSLY injured if you
do not follow directions.

developed to provide complete
instructions for the safe and
efficient operation of the

Multiquip Mayco

Concrete

Pump.

C-30HDN

HAZARD SYMBOLS

Potential hazards associated with operation of the pump will
be referenced with Hazard Symbols which appear throughout
this manual, and will be referenced in conjunction with Safety
Message Alert Symbols. Some examples are listed below:

WARNING - Lethal Exhaust Gases

WARNING - Explosive Fuel

DO NOT overfill tank, since spilled fuel could ignite if it

comes into contact with hot engine parts or sparks from
the ignition system. Store fuel in approved containers, in
well-ventilated areas and away from sparks and flames.
NEVER use fuel as a cleaning agent.

Diesel engine exhaust gases contain
poisonous carbon monoxide. This gas is
colorless and odorless, and can cause
death if inhaled. NEVER operate this
equipment in a confined area or
enclosed structure that does not
provide ample free flow air.

Diesel fuel

its vapors can cause an explosion if
ignited. DO NOT start the engine near
spilled fuel or combustible fluids. DO
NOT fill the fuel tank while the engine is
running or hot.

is extremely flammable, and

WARNING

You COULD be KILLED or SERIOUSLY injured if
you do not follow directions.

CAUTION

You CAN be injured if you do not follow directions

PAGE 8 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

WARNING - Burn Hazards

Engine components can generate extreme
heat. To prevent burns, DO NOT touch
these areas while the engine is running or
immediately after operations. NEVER
operate the engine with heat shields or heat
guards removed.

C-30HDN PUMP — SAFETY MESSAGE ALERT SYMBOLS

WARNING - Rotating Parts

NEVER operate equipment with covers,

or guards removed. Keep

hands, hair

moving parts to prevent injury.

CAUTION - Accidental Starting

ALWAYS place the Engine ON/OFF

switch in the OFF position. NEVER
perform maintenance on the unit with
the ignition key in the ON position.

CAUTION - Over-speed Conditions

NEVER tamper with the factory

settings of the engine governor or
settings. Personal injury and damage
to the engine or equipment can result
if operating in speed ranges above
maximum allowable.

and clothing away from all

fingers

CAUTION - Respiratory Hazards

,

CAUTION - Sight And Hearing Hazards

CAUTION - Equipment Damage Messages

Other important messages are provided throughout
this manual to help prevent damage to your concrete
pump, other property, or the surrounding environment.

ALWAYS wear approved
protection.

ALWAYS wear approved

hearing

protection.

respiratory

eye

and

NOTE

This

pump

, other property, or
the surrounding environment
could be damaged if you do not
follow instructions.

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 9

C-30HDN PUMP — RULES FOR SAFE OPERATION

■

DANGER - Read Operation And Parts

Failure to follow instructions in this manual may lead to

death!

serious injury or even
operated by trained and qualified personnel only! This
equipment is for industrial use only.

The following safety guidelines should always be used when
operating the C-30HDN structural concrete pump:

GENERAL SAFETY

■

DO NOT operate or service this
equipment before reading this entire
manual.

■

This equipment should not be
operated by persons under 18 years
of age.

■

NEVER operate this equipment without proper protective
clothing, shatterproof glasses, steel-toed boots and other
protective devices required by the job.

■

NEVER operate this equipment when not feeling
well due to fatigue, illness or taking medicine.

■

NEVER operate this equipment under the
influence or drugs or alcohol.

■

ALWAYS check the machine for loosened threads or bolts
before starting.

■

ALWAYS wear proper respiratory (mask),

eye

protection equipment when operating the pump.

■

Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.

■

Manufacture does not assume responsibility for any
accident due to equipment modifications.

■

NEVER use accessories or attachments, which are not
recommended by Multiquip for this equipment. Damage
to the equipment and/or injury to user may result.

This equipment is to be

hearing

and

NEVER touch the hot exhaust manifold,
muffler or cylinder. Allow these parts to
cool before servicing engine or pump.

■

High Temperatures – Allow the engine
to cool before adding fuel or performing
service and maintenance functions.
Contact with
cause serious burns.

■

The engine section of this
pump requires an
adequate free flow of
cooling air.
operate the pump in any
enclosed or narrow area
where free flow of the air
is restricted. If the air flow is restricted it will cause serious
damage to the pump or engine and may cause injury to
people. Remember the pump's engine gives off
carbon monoxide gas.

■

ALWAYS refuel in a well-ventilated area, away from sparks
and open flames.

■

ALWAYS use extreme caution when
working with flammable liquids. When
refueling, stop the engine and allow it
to cool.

■

NEVER
machine. Fire or explosion could result
from

hot!

engine.

■

NEVER operate the pump in an explosive
atmosphere or near combustible materials. An explosion
or fire could result causing severe

death.

■

Topping-off filler port is dangerous, as it tends to spill fuel.

■

ALWAYS remove the
unattended.

■

ALWAYS block the

■

ALWAYS maintain this equipment in a safe operating
condition at all times.

■

ALWAYS stop the engine before servicing, adding fuel or
oil.

■

NEVER run engine without air filter. Severe engine damage
may occur.

■

ALWAYS be sure the operator is familiar with proper safety
precautions and operation techniques before using pump.

hot!

NEVER

smoke

fuel vapors

around or near the

, or if fuel is spilled on a

wheels

components can

bodily harm or even

ignition key

on the unit when using on a slope.

when leaving the pump

DEADLY

PAGE 10 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — RULES FOR SAFE OPERATION

■

ALWAYS store equipment properly when it is not being
used. Equipment should be stored in a clean, dry location
out of the reach of children.

■

DO NOT operate this equipment unless all guards and
safety devices are attached and in place.

■

CAUTION must be exercised while servicing this
equipment. Rotating and moving parts can cause injury
if contacted.

■

Keep all
from the equipment at all times.

■

Before start-up, check the hopper and remove all foreign
matter and debris.

■

DO NOT use worn or damaged hose couplings, inspect
all hoses and couplings for wear. Replace any worn or
defective hose or couplings immediately.

■

Keep hands out of the hopper when the engine is running.

■

DO NOT operate unit with the

■

DO NOT disconnect hose couplings or nozzle while under
pressure. Relieve pressure by manually activating
pressure relief valve at manifold.

■

Unauthorized equipment modifications will void all
warranties.

■

Check all fasteners periodically for tightness. Also check
towing tongue bolt, lock nut and wheel lug nuts for wear.

■

Test the
test is to shut down the engine.

■

Refer to the
technical questions or information recommended by
Multiquip for this equipment. Damage to the equipment
and or injury to user may result.

inexperienced

pump's ON/OFF

and

unauthorized

hood open

switch. The purpose of this

people away

.

NISSAN Engine Owner's Manual

for engine

■

■

■

■

■

■

MAINTENANCE SAFETY

■

■

■

■

■

■

If unit is equipped with ball hitch coupler, use only 2" all
steel ball rated for minimum of 6,000 lbs. Use 1" hardened
steel pull pin, if not equipped with ball hitch.

This equipment shall not be towed or operated by
individuals who cannot read understand the signs, decals
or operating instructions.

When towing at night,

DO NOT tow unit with hopper full of material.

DO NOT tow unit with hoses attached.

DO NOT tow unit in excess of 55 MPH on highways..

NEVER lubricate components or attempt service on a

running pump .

ALWAYS allow the pump a proper amount of time to
cool before servicing.

Keep the pump in proper running condition.

Fix damage to the pump immediately and always replace
broken parts.

Dispose of hazardous waste properly. Examples of
potentially hazardous waste are used motor oil, fuel and
fuel filters.

DO NOT use plastic containers to dispose of hazardous
waste.

always

have rear tail lights ON.

TRANSPORTING

■

ALWAYS shutdown engine before transporting the pump.

■

Tighten fuel tank cap securely and close fuel valve to
prevent fuel from spilling.

■

Drain fuel when transporting pump over long distances
or bad roads.

TOWING

■

Before towing, check the hitch and secure the safety
chain to the towing vehicle.

■

When towing, an adequate safety chain must be fastened
to the frame, refer to Towing Guidelines.

■

Tow only with a vehicle and hitch rated to pull a 6,000
lbs. load.

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 11

C-30HDN PUMP — RULES FOR SAFE OPERATION

BATTERY

The battery contains acids that can cause injury to the eyes
and skin. To avoid eye irritation,
Use well insulated gloves when picking up the battery. Use
the following guidelines when handling the battery:

■■

DO NOT drop the battery. There

■

■■

is the possibility of risk that the
battery may explode.

■■

■

DO NOT expose the battery to

■■

open flames, sparks, cigarettes
etc. The battery contains combustible gases and liquids.
If these gases and liquids come in contact with a flame or
spark, an explosion could occur.

■■

■

ALWAYS keep the battery charged. If the battery is not

■■

charged a buildup of combustible gas will occur.

always

wear safety glasses.

EMERGENCIES

■

ALWAYS know the location of the
nearest

■

ALWAYS know the location of the
nearest and

■

In emergencies
nearest phone or
Also know the phone numbers of the nearest

ambulance, doctor

information will be invaluable in the case of an
emergency.

fire extinguisher

first aid kit

always

.

.

know the location of the

keep a phone on the job site

and

fire department

.

. This

■■

■

ALWAYS keep battery charging and cables in good working

■■

condition. Repair or replace all worn cables.

■■

■

ALWAYS recharge the battery in an vented air

■■

environment, to avoid risk of a dangerous concentration
of combustible gases.

■■

■

In case the battery liquid (dilute sulfuric acid) comes in

■■

contact with
immediately with plenty of water.

■■

■

In case the battery liquid (dilute sulfuric acid) comes in

■■

contact with your eyes, rinse eyes immediately with plenty
of water, then contact the nearest doctor or hospital, and
seek medical attention.

clothing or skin

, rinse skin or clothing

PAGE 12 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

NOTES

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 13

C-30HDN PUMP — OPERATION AND SAFETY DECALS

Figure 2 display's the operation and safety decals as they appear on the concrete pump, should any of these decals become
damaged or unreadable, contact the Multiquip Parts Department for a replacement set.

Figure 2. Operation and Safety Decals

PAGE 14 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — IMPORTANT HAND SIGNALS

Figure 3 display's the basic hand signals commonly used in concrete pumping operations.

Figure 3. Importand Hand Signals

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 15

C-30HDN PUMP — PUMP COMPONENTS

Figure 4. Major Pump Components

PAGE 16 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — PUMP COMPONENTS

Figure 4 illustrates the location of the major components
for the C-30HDN Concrete Pump. The function of each
component is described below:

1. Discharge Cone – Connect 3" elbow to this discharge
port, then connect 3" x 2" reducer to elbow.

2. Discharge Cone Safety Latch – When towing of the pump
is required,
located on the manifold.

3. Rear Running Lights – ALWAYS check and make sure
both the right and left running lights are functioning correctly
before towing the pump.

4. Hopper – Concrete from a Redi-Mix truck is poured into
this hopper. The hopper can hold 6.0 cu. ft of concrete.
NEVER put hands or any other parts of you body into the
hopper.

5. Safety Grill – The safety grill should be locked at all times
when the pump is being towed. Under normal working
conditions, raise and place the safety grill on the support
hooks which are located on splash guard.

6. Shaft Pulley V-Belt –
V-belt for wear and alignment. A defective or misaligned
V-belt can wear prematurely and adversely affect the
performance of the pump. Replace with only manufactures
recommended type V-belt.

7. Distributor –
debris to come in contact with the distributor.

8. Compartment Hood –
hood removed. Installed on the pump frame is a safety
inter-lock device which prevents the engine from starting if
the hood is removed or in the up position (open).

9. Hood Fastener – When the hood is in the down position,
secure the rubber latch to this fastener.

10. Hood Lift Handle – Grip this handle, pull upward then
back to raise the compartment hood.

11. Control Box – Contains the mechanical and electrical
components required to run the pump. Below is a list of
those components:

■

■

■

■

■

■

■

ALWAYS

NEVER

Throttle Control

Choke Control

Low Oil Pressure Indicator

Battery Charge Indicator

Water Temperature Indicator

Ignition Switch

Remote Connector

secure the discharge cone to latch

ALWAYS

allow concrete, water or any foreign

NEVER

inspect the drive shaft

operate the pump with the

12. Radiator/Cap – Fill with a water/anti-freeze type solution
as recommended in the maintenance section of this manual.

ALWAYS

operating level before starting the engine.

13. Fuel Tank/Cap – Fill with unleaded fuel. Fuel tank (cell)
holds approximately 11 gallons (42 liters). DO NOT top off
fuel. Wipe up any spilled fuel immediately

14. Tow End Jack Stand – Use this jack stand to level and
support the pump.

15. Tow Hitch Coupler – Requires a 2-inch ball hitch or a
3-inch pintle. Capable of towing 5,000 lbs. (

16. Safety Chain – ALWAYS attach safety chain to the
towing vehicle. NEVER! tow the pump with the safety
chain unattached.

17. Engine Stop Device – This device will prevent the starting
of the engine when the compartment hood is in the
position. The compartment hood must be in the
position in order for the engine to start.

18. Grease Port Console – This console allows for the remote
lubrication of components on the pump.

19. Access Door – There are four access doors on the pump.
Remove these door to gain access to drive and piston
assemblies when maintenance is required.

20. Drive Chain – Keep this chain properly lubricated and
aligned at all times. Lubricate this chain as specified in the
maintenance section of this maintenance.

21. Rubber Latch – Secure this rubber latch to the hood
fastener whenever the pump is in use or being towed.

22. Tires Ply– The tire ply (layers) number is rated in letters;
This trailer uses 4-ply tires.

23. Chock Blocks – Place these blocks (not included as
part of your concrete pump package) under each trailer
wheel to prevent rolling.

24. Pump End Jack Stand – Use this jack stand to level
and support the pump.

25. Discharge Cone Release Lever – secures the
discharge cone to the "Y" manifold; also relieves
manifold pressure.

26. Documentation Box – Contains engine and pump
operation, parts and maintenance information.

27. Lubrication Box – This box is empty when shipped
from the factory. Please fill with 7 gallons ( 26.5 liters) of
SAE motor oil for first time use. Also check the dual
clean-out point on bottom of lubrication box for a secure
tight fit.

make sure that the radiator is filled

to

the proper

up

down

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 17

C-30HDN PUMP — CONTROL BOX COMPONENTS

Figure 5 illustrates the location of the major
components for the C-30HDN Control Box. The
function of each component is described below:

Figure 5. Pump Control Box Components

1. Throttle Control Knob – This is a variable speed type
control. Turning the throttle lock (CCW) left unlocks the
throttle allowing the throttle control cable to be pulled out to
the desired position. Once the desired throttle position
(speed) has been achieved, turning the throttle lock to the
(CW) right locks it in place. Use the fine tune adjustment
knob to fine tune the engine rpm's.

To place the engine in idle, press the top button inward all
the way.

ALWAYS

NOTE

2. Choke Knob – When the starting of an cold engine is
required, open choke by pulling choke control to extreme
out position. Let engine run for 3-5 minutes, then push choke
knob all the way in (close position).

3. Oil Pressure Indicator Lamp – In the event of low oil in
the engine crankcase or low oil pressure, the oil "

Pressure Lamp

immediately if this lamp is lit.
this lamp is on.

before it is pushed in because if this is
not done first, possible damage could
result to the locking mechanism.

" indicator will be lit.

unlock the throttle control

STOP

the engine

NEVER

run the engine when

4. Battery Charge Indicator Lamp – Indicates if the

5. Water Temperature Lamp – In the event of high engine

6. Ignition Switch – Insert the ignition key here to start the

7. Remote Control Input Connector – Insert the remote

8. Pumping Control Switch – This 3-position switch controls

Oil

9. Hourmeter– Display's the number of hours the pump has

electrical system is charging properly. If the "

Charge

charging system is malfunctioning.
remedy the electrical charging problem.

water temperature (220 degrees Fahrenheit), this lamp will
be lit.

NEVER

engine. Turn the key clockwise to the
continue turning clockwise to the
release. To stop the engine turn the key fully counter­clockwise to the

control input cable into this connector.

the pumping of the pump. The
with the remote control unit, the
normal pumping operation, and the
(OFF) prevents pumping.

been in use.

Indicator Lamp

STOP

the engine immediately if this lamp comes on.

run the engine when this lamp is on.

STOP

" is lit, this is an indication that the

STOP

ON

START

position.

left most

position is for use

center

right most

Battery

the engine and

position, then

position and

position is for

position

PAGE 18 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — ENGINE COMPONENTS

9

10

12

13

14

11

5

4

3

2

1

FRONT VIEW

6

7

8

TOP VIEW

Figure 6. Nissan Model A15 Basic Engine Components

Figure 6 illustrates the location of the basic components
for the NISSAN A-15 Engine. The function of each
component is described below:

1. Oil Filter – Replace this filter as recommended in the
maintenance section of this manual

2. Oil Pressure Switch – In the event of low oil level, this
switch will shutdown the engine.

3. Starter Motor/Solenoid –

NEVER

allow concrete or any
foreign debris to come in contact with the starter motor/
solenoid.

4. Fan V-Belt –

ALWAYS

make sure that V-belt is properly
tensioned. A loose or defective V-belt can adversely affect
the performance of the pump.

5. Alternator – Provides power to the electrical system.
Replace with only manufactures recommended type
alternator.

6. Air Cleaner – Prevents dirt and other debris from entering
the fuel system. Remove wing-nut on top of air filter
cannister to gain access to filter element. Replace with
only manufactures recommended type air cleaner.

NOTE

Operating the engine without an air
filter, with a damaged air filter, or a filter
in need of replacement will allow dirt
to enter the engine, causing rapid

7. Cooling Fan Blades – Make sure that the blades of the
cooling fan are not
can cause the engine to run hot and overheat.

8. Crankcase Drain Plug – Remove this plug to drain
engine oil from the crankcase. Replace with recommended
engine oil as specified in the maintenance section of this
manual.

9. Fuel Pump/Fuel Filter – Replace or clean the fuel pump
or fuel filter as specified in the maintenance section of this
manual.

10. Distributor –
to come in contact with the distributor.

11. Spark Plug – Provides spark to the ignition system. Set
spark plug gap to 0.6 - 0.7 mm (0.028 - 0.031 inch). Clean
spark plug once a week.

12. Dipstick – Remove this dipstick to determine if engine oil
is low. Maintain oil level at the "H "marking on the dipstick.

NEVER

13. Oil Filler Port Cap – Remove this cap to add engine oil to
the crankcase. Fill with recommended type oil as specified
in the maintenance section of this manual

14. Carburetor –
debris from entering the carburetor. Clean carburetor as
recommended in the maintenance section of this manual.

engine wear.

bent or broken

NEVER

allow concrete or any foreign debris

. A damaged fan blade

run engine with low oil.

ALWAYS

keep dirt, dust, and any foreign

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 19

C-30HDN PUMP — GENERAL INFORMATION

The following operating principles and operating suggestions
should prove helpful in the successful operation of your concrete
pump. Your new “small line” concrete pump has been designed
to give you many years of service when operated properly. A
study of the following paragraphs is important to the successful
operation of your new Direct-flo Concrete Placer.

All concrete pumps require a high level of operator skill and
more frequent service than most of the other construction
equipment. The highly abrasive nature of concrete under pressure
makes it extremely important that expendable wear components
be inspected at regular intervals between jobs to prevent having
to replace these items during a pour.

Experience has proved that inconsistency of batched concrete
mixes and frequent moving of the line requires the operator to
be readily available at all times during pumping to stop the pump
and prevent abuse to the unit which may occur if unexpected
blockages develop.

PUMP MIX GUIDELINES

When ordering concrete, be certain to advise the concrete
supplier that you require a “
will pump a wide variety of materials, but certain basic principles
must be followed to assure successful pumping, as follows:

Generally speaking, the washed concrete sand and #4
aggregate (pea gravel) should conform to A.S.T.M. standards in
regard to sieve analysis. Sands in some areas are washed clean
of the #100 and #200 mesh fines, which results in separation
and jamming in the manifold while pumping under pressure.

If this condition develops, check with your concrete suppliers
engineers and get their recommendations for supplementing
the lack of the fines. The use of locally accepted ad-mixes may
be required. (For example, Pozzolith, Bentonite Clay, Plastiments,
etc.) When properly prescribed, additives form the plastic paste
sometimes necessary to hold the cement and aggregate together.

pump mix

”. The Direct-flo manifold

As a general rule, the use of approximately six sacks of cement,
70% washed concrete sand and 30% #4 pea gravel per yard of
concrete will result in a pumpable mix. The ideal nature of sand
and rock in certain areas may permit you to increase the
percentage of rock or adjust the mix considerably to meet the job
requirements. When possible, you may experiment with various
mixes in your area to determine the degree of versatility of the
Direct-flo Pump.

Uniform gradation of the washed concrete sand and the 1/2”
minus aggregate along with sufficient cement content and water
are important to a successful pump operation.

A recommended pumpable mix design would be 70% sand and
30% aggregate-cement content to be a minimum of 6 sacks.
(564 lbs.)

NOTE

SAMPLE DESIGN MIX-3000 PSI 3/8" SLUMP 4"- 5"

Type II Cement 6.49 sack/cu. yd 611 lbs.

Sand Sat. Surf. Dry 2000 lbs.

#4 Gravel Sat. Surf. Dry 864 lbs.

#3 Gravel Sat. Surf. Dry 0 lbs.

Water 48 Gallons 400 lbs.

Admixture WRDA-79 26 oz.

Water 7.40 gal/sack

Test laboratory data has proven in many areas that the above
mix guidelines have produced concrete rated at 3000 psi (28
day test) and upwards of 5000 psi with an increase in cement.

Your local sand and rock engineers will
give you the S.S.D. weights of sand and
rock required in your local area which
will yield one cubic yard per the above
recommendation.

Total Weight 3,906 lbs

If jamming conditions in the pump or

NOTE

Determine the cause of jamming, correct it and resume pumping.
Trying to force material through under jammed conditions may
result in damage to the drive system, thus voiding any warranty
services.

PAGE 20 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

hose occur for any reason at all, DO
NOT attempt to use more power to

correct the condition.

In some areas where the gradation of sand and rock is ideal and
sufficient cement is used along with admixtures, the Mayco small
line concrete pump will handle up to a 50-50 ratio of sand and
rock.

When the mix is designed for wet gunning applications, it is
normal to increase the cement (up to 7.5 or 8 sacks) and change
the sand to rock ratio to 85% sand and 15% rock.

The Mayco concrete pump will valve efficiently when using
cellular-foam concrete mixes upwards of 70 lbs. per cubic foot
wet density. (Below 70 lbs. materials (roof decks) the valving
becomes inefficient.)

C-30HDN— HOW IT WORKS

The MAYCO concrete pump has one main pumping piston
which is valved by means of two ball checks. (A inlet, and B
outlet.)

The secondary piston is used as a compensator piston to
smooth out the pulsations of a single piston action. Note: The
compensator will not start operating until material is pumped
into the line and back pressure develops.

compensator spring

The
compensator piston rod, deflects with each piston stroke. This

spring cushion

“
and uninterrupted smooth flow of material under average
pumping conditions.

The pumping cylinder (Figure 7) retracts drawing the material
past the ball (A) and filling the cylinder. The compensator piston
is pumping the material out to the nozzle and causing ball (B) to
seat preventing the material from returning to the pumping
cylinder intake.

”, in conjunction with the cam profile, produces

, which is installed on the

An automatic, centrifugal clutch is installed to engage and
disengage the pumping action without stopping or starting the
engine. The
idle speed is approximately 875 R.P.M.; therefore, the clutch is
completely disengaged at idle. The throttle settings while
pumping should always maintain an engine R.P.M. high enough
to prevent the clutch from slipping and burning the clutch lining.

The return spring which is installed on the rocker arm, is installed
to eliminate shock and stress between the cam roller and the
cam weldment when the pump is in operation. If the return spring
is removed or replaced for any reason, maintain the backing
plate dimension of 3” as shown on Figure 3, to produce the
proper pre-loading of the spring for a smooth performance.

centrifugal clutch

is set at 1100 R.P.M. The engine

Figure 7. Pumping Cylinder

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 21

C-30HDN PUMP — HOW IT WORKS

The pumping piston (Figure 8) is forcing the material past ball
(B) and out to the nozzle, also seating ball A so that the material
will not flow back to the hopper. This action also fills the
compensating piston for the next stroke.

Figure 8. Pumping Pistons

Figure 9 shows the relationship between the return spring, the
compensator spring and the rocker arm to maintain a smooth
performance. DO NOT tighten the bolt (Item 1) completely, the
rod end must be able to move.

The return spring is installed to eliminate shock and stress
between the cam roller and the cam weldment when the pump is
in operation. If the
reason, maintain the backing plate dimension (3-inches) as
shown to produce proper pre-loading of the spring for a smooth
performance.

return spring

is removed or replaced for any

Figure 9. Return Spring, Compensator Spring and

Rocker Arm Interaction

PAGE 22 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

NOTES

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 23

C-30HDN PUMP — INSPECTION

CAUTION - General Saftey Guidelines

NEVER operate the pump in a confined

area or enclosed area structure that does
not provide ample

NEVER operate the pumps's engine with the
engine hood removed. The possibility exists
of

hands, long hair

becoming entangled with the V-belt, causing
injury and bodily harm.

NEVER place hands or feet inside the
while the engine is running. ALWAYS shut-down the engine
before performing any kind of maintenance service on the
pump.

Before Starting

1. Read safety instructions at the beginning of
this manual.

2. Removing any dirt and dust that might have accumulated
around the engine cooling air inlet, fuel injection system.

free flow of air

ALWAYS wear approved

protection before operating the pump .

, and

.

clothing

hopper

eye

and

hearing

. ALWAYS make

Engine Oil Check

1. To check the engine oil level, place the pump on secure
level ground with the engine stopped.

2. Remove the dipstick from its holder (Figure 10) and wipe it
clean.

DIPSTICK

3. Check the engine oil level as shown on the dipstick.

4. If the engine oil level is low, add oil through the engine oil filler
hole (Figure 12) with the recommended oil type (Table 3).
Maximum oil capacity is 3-3/8 quarts (3.2 liters).

OIL FILLER

HOLE

Figure 10. Engine Oil Dipstick

3. Check the air filter for dirt and dust. If air filter is dirty, replace
air filter with a new one as required.

4. Check fuel injection system for external dirt and dust. Clean
with dry compressed air.

5. Check fastening nuts and bolts for tightness.

6. Connect Battery

7. Make sure hopper is free of dirt and foreign debris (large
objects over 2-inches)

8. Make sure radiator is filled with proper amount of anti-freeze
water solution (50/50).

9. Make sure all hose lines are in good condition and are working
properly.

Reference manufacturer engine

NOTE

manual for specific servicing
instructions.

Figure 11. Engine Oil Filler Hole

epyTliO.3elbaT

nosaeS erutarepmeT epyTliO

remmuS rehgiHroC°52 03-W01EAS

llaF/gnirpS C°01~C°52 02/03-W01EAS

retniW rewoLroC°0 01-W01EAS

PAGE 24 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — INSPECTION

Gasoline Check

1. Remove the gasoline cap located on top of fuel tank.

2. Handle Fuel in a safety container. If the container does not
have a spout use a funnel.

3. Visually inspect to see if fuel level is low. If fuel is low,
replenish with unleaded fuel. When refueling, be sure to use
a strainer for filtration. DO NOT top-off fuel. Wipe up any
spilled fuel.

4. Pay attention to the fuel tank capacity when replenishing fuel.
Refer to the fuel tank capacity listed in Table 5.

WARNING - Explosive Fuel

Gasoline

vapors can cause an explosion if ignited.
DO NOT start the engine near spilled fuel
or combustible fluids. DO NOT fill the fuel
tank while the engine is running or hot.

DO NOT overfill tank, since spilled fuel
could ignite if it comes into contact with hot engine parts or
sparks from the ignition system. Store fuel in approved
containers, in well-ventilated areas and away from sparks and
flames. NEVER use fuel as a cleaning agent.

is extremely flammable, and its

Lubrication Box

The model C-30HDN model features a fully enclosed

lubrication box,

lubrication.

Before using your new pump, 7 gallons of SAE 30 motor oil must
be added directly into the lubrication box. Visually inspect the oil
in the lubrication box by making sure the oil is at the correct
operating level as indicated by the dip stick (Figure 16).

Also reference the oil level decal (Figure 17) adjacent to the
lubrication box.

NOTE

CAUTION -

The oil level must be
level and oil cleaniness.

which utilizes the

Make sure the pump is on a secure
level surface when checking the oil

level inside the lubrication box.

"SPLASH"

method of

Checking Lubrication Oil Levels

checked daily

to ensure adequate oil

DO NOT smoke while refueling, motor fuels are highly
flammable and can be dangerous if mishandled.

Figure 16. Lubrication Box Dipstick

Figure 17. Lubrication Box Oil Caution Decal

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 25

C-30HDN PUMP — INSPECTION

Checking Engine Coolant Level

1. Remove the radiator cap, and check the cooling water level
inside the radiator (Figure 18).

2. Maintain water/coolant level at top of radiator coils.

Figure 18. Radiator Coolant

WARNING - Burn Hazards

NEVER remove the radiator cap when the

engine is HOT! Allow the engine to cool
before remove the cap.

V-Belt Deflection

1. Visually inspect the V-belt for cracks, fraying, wear or oiliness.

2. Make sure V-belt does not the bottom the pulley groove.

3. Check the V-belt tension (Figure 19) by pushing midway through
the two pulleys. The V-belt deflection should be between .300 to
.472 inches (8 to 12 mm).

Figure 19. V-Belt Deflection

3. Check the radiator and hoses for any signs of leakage.

4. If cooling water is dirty, flush the cooling system.

5. When using antifreeze, mix the antifreeze coolant with water.
Observe the instructions on the antifreeze container. Usually
a 50/50 mixture is a good choice.

6. When replacing the radiator cap, be sure to fit it securely back
onto the radiator. If replaced loosely or incorrectly, the cooling
water will quickly evaporate, causing the engine to overheat.)

PAGE 26 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN INITIAL START-UP

Starting

CAUTION - General Saftey

DO NOT attempt to operate this concrete pump

until the Safety, General Information and
Inspection sections have been read and
understood.

1. Turn the inner most knob counter clockwise to unlock the

throttle cable

THROTTLE

ADJUSTMENT

KNOB (COARSE)

(PUSH/PULL)

(Figure 17).

UNLOCKING

KNOB

UNLOCK

LOCK

THROTTLE

ADJUSTMENT

KNOB (FINE)

(TURN CW/CCW)

3. Pull the

choke knob

(Figure 19) outward about half way.
In cold weather, start the unit with the choke in the fully closed
position.

In summer time or when the engine is warm,

the
unit can be started with the choke halfway or completely
open

Figure 19. Throttle Control Knob

4. Place

the

pumping control switch

(Figure 20) in the

OFF position.

Figure 17. Throttle Control Knob (Un-locking)

2. Push the outermost button inward, then pull out about half
way. This will set the throttle at half speed (Figure 18).

5. Insert the ignition key into the
key to the ON position, then to the START position (Figure

PUSH-IN, THEN PULL

TO SET THROTTLE

(RPM’s)

PUSH ALL THE WAY IN

TO IDLE ENGINE

21). Release the key when the engine starts.

Figure 18. Throttle Control Knob (RPM Adjust)

Figure 20. Pumping Control Switch (OFF)

ignition switch

andturn the

Figure 21. Ignition Switch

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 27

C-30HDN INITIAL START-UP

6. Verify that the

ture

status lamps (Figure 22) are all OFF. If any of these

lamps are ON, stop the engine and correct the problem.

Figure 22. Control Box Status Lamps

7. Let the engine run for 3-5 minutes before putting pump into
operational use. Push the

8. Listen for any abnormal sounds. If any mechanical or elec­trical problems exists, STOP the engine and correct the
problem.

9. To begin pumping concrete, place the

in the ON position (Figure 23).

switch

oil pressure, battery

choke knob

and

water tempera

in all the way.

pumping control

-

System Shut-Down

1. Place the
(Figure 20).

2. Push the
engine run at idle speed for 3-5 minutes.

3. Turn the

4. Clean pump as referenced in the maintenance section of
this manual.

pumping control switch

throttle contro

ignition key

l in all the way (idle). Let the

(Figure 21) to the OFF position.

in the OFF position

Figure 23. Pumping Control Switch (OFF)

PAGE 28 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — OPERATING INFORMATION

OPERATING SUGGESTIONS

1. A well-planned location for the pump and routing of the hose
before starting a pour may save subsequent moves through­out the job.

2. Before concrete is discharged into the hopper, it is suggested
that 3 to 4 gallons of water be sprayed into the hopper,
followed by approximately 5 gallons of a creamy cement and
water slurry (1/2 bag of cement to 5 gallons of water). This
procedure lubricates the hose and prevents separation and
blockages in the hose.

Getting the concrete to flow through the

NOTE

hose at the start of the pumping cycle
can be one of the most critical opera­tions of the pour.

Manually

starting, NOT remotely.

operate the throttle when

C. If it is necessary to wait 10 minutes or more for another

D. When pumping stiff mixes and there is waiting time

E. When the pumping job requires a stiffer mix, the follow-

CAUTION - Inspect Hose Lines

If hoses or lines are

kinked

are
the pump pressure could straighten out the kink or force out
the blockage. This rapid surge of material could cause the
lines to
personnel.

Inspect the lines at all times to prevent the above
conditions

3. It is important that once the slurry procedure is completed,
and you have started concrete flowing through the hose, do
not stop the pour until all the slurry is pumped out and the
concrete has reached the end of the hose. The only time to
stop the pump at the start is if a blockage occurs.

when starting up or during the pumping cycle,

whip

or

blocked

move

in a manner that could cause injury to

for any reason, or if the lines

NOTE

F. Hose sizing is very important: We strongly recommend

5. Following the pump operation, proper wash out of all
materials or “build-up” within the pump manifold and hoses
will prevent problems when starting the next job.

load of concrete, it is wise to start the pump and pump
6 or 8 strokes every 5 minutes to prevent setting of the
mix in the system. If waiting time is excessive, it would be
wise to wash out the pump and hoses and start over
when the new truck arrives.

between redi-mix trucks, it is advisable to add some
water to the last hopper of material and “hand mix” to
ensure an easier start with the following load.

ing method is suggested for starting: Take a water hose
with a nozzle on it and apply water with a fine spray to
the concrete as it comes down the redi-mix chute into the
pump hopper after the slurry procedure is completed
and you are ready to start pumping.

Using this procedure will make it easier to pump through
the clean hose.

Once the concrete has reached the
end of the hose, do not apply any more
water in this manner as this procedure
is used on the start only.

on harsh mixes, ver tical pushes, stiff concrete, shotcrete,
long pushes, that a 2 -1/2” line be used as far as possible.
The advantages of using the 2 -1/2” line are improved
pumpability, less pumping pressure and less wear on
the pump.

4. When the pump is stopped for any reason during a pour; e.g.,
moving hose, waiting for redi-mix truck, the following sugges­tions are offered:

A. Leave the hopper full of concrete at the time of shutdown.

It is important not to let the
much water into the hopper, as this could cause sepa­ration of the concrete in the hopper.

B. If the

shutdown

the engine so the vibration does not separate the mix in
the hopper which can cause a blockage in the manifold
when the pump is started.

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 29

period exceeds 2 to 3 minutes, turn off

redi-mix

driver wash too

6. A thorough inspection of the drive components and greas­ing of all bearings after each job will ensure adequate
lubrication and service to the pump which is normally
operating in wet, gritty conditions.

NOTE

Over-greasing any
Mayco pump will not damage the bear­ing.

bearing

on your

C-30HDN PUMP — OPERATING INFORMATION

WARNING - Line Blockage

If a blockage occurs, find where it is and clear it before
further pumping. DO NOT increase the engine speed to
clear the blockage. Increasing the engine speed will only
compound the problem .

If you repeatedly pull the throttle all the way out and try to
force your pump to push through
separation of material in the hose or manifold, you will soon
have breakdowns and costly repairs which are not covered
under warranty.

blockages

, due to

WARNING - Clear Hopper Before Moving

It will be necessary at times to move your pump from one job
site location to another. Before moving the pump, make sure
to pump the remaining concrete out of the hopper.

Moving the pump with a
severe damage or breakage of the axle and axle springs,
excess strain and pressure on the hub and bearing assembly.

Pumping Tips

1. The effects of heat and excessive time on concrete: Hot
concrete, commonly referred to as a hot load, is concrete that
has been in the redi-mix truck in excess of 2 to 3 hours. On
a hot day, this amount of time is even less. A brief explanation
of why heat and time affect concrete:

Concrete starts setting by drying up through a chemical
reaction. The catalyst to this reaction is heat. When pumping
a hot load, it is important to remember that when you have to
stop pumping for any reason, add water to the concrete in the
hopper and hand mix and move concrete in the hose every
5 minutes. If the shut down time becomes too long, wash out
immediately.

2. ADMIXTURES: Admixtures that are designed into the con­crete mix by the redi-mix company or an architectural
engineering company. This section lists common admixtures
and a brief explanation of their functions:

A. Pozzolith 300 – or the equivalent acts as a water

retarder and a lubricant. On a lean mix, long pushes, stiff
mixes, and vertical pushes, Pozzolith 300R helps
pumpability.

B. MBVR – air entraining, acts as a lubricant.

full hopper

of concrete can cause

3. When pumping long distance or pumping stiff mixes, you can

4. Leaking manifold seals or hose coupling gaskets which leak

5. Damaged hoses with internal restrictions can cause block-

6. If a blockage occurs in a hose, “walk the hose” until you find

Use
a rupture can cause

C. Calcium Chloride – commonly referred to as C.C., is

used as an accelerator. When pumping a load with
calcium chloride, it is recommended that you wash out
if the waiting time between delivery trucks becomes too
long.

D. Super Plasticizers – acts as an accelerator. The

concrete will look very wet after the super plasticizer is
added, but will begin to set up very fast. Wash out
immediately if you do not have a truck waiting. Super
plasticizers are used mainly on commercial jobs.

E. Red Label – acts as a water retarder and an accelera-

tor. Red label will be used mainly on commercial jobs.

F. Fly Ash – is used to help increase the strength of the

concrete and decrease the cement content per yard.
This is one of the most common admixtures used.

All admixtures will be shown on the
redi-mix concrete ticket. Before start-

NOTE

expect a drop in volume compared to shor ter lines and wetter
mixes due to the change in valve efficiency or cavitation.

water can cause separation and subsequent jamming at that
point.

ages.

the point of trouble. The hose will be soft immediately past the
blockage. If this happens at the start, disconnect the hose at
the first coupling past the blockage.

A. Elevate the hose at that point with the blockage area

hanging down.

ing the pumping job, ask the driver of
the redi-mix truck to see the concrete
ticket and note the admixtures that exist
and take the proper action.

WARNING - Line Under Pressure

extreme

CAUTION! The hose line is under pressure and

serious injury.

B. Using a hammer, you can pound the down-stream edge

of the packed area until it is free to flow. Shake all of the
sand and gravel out to the end of the hose.

C. Before reconnecting the hose, start the pump and run a

small amount of concrete out to the end of the hose. This
will assure that all of the separation is out of the hose.

PAGE 30 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — OPERATING INFORMATION

7. The manifold is plugged if the volume at the discharge end

of the hose stops, and the hose is soft. The drive belts will start
to slip and the engine will lugdown.

Follow steps 7A through 7J to un-plug a clogged manifold.

WARNING - Clearing A Plugged Manifold

Due to pressure build-up inside the manifold, great care must
be taken when clearing a plugged manifold.

A. STOP the pump and switch OFF the engine.

B. DO NOT open any of the delivery system joint clamps.

C. The senior operator must warn all others to stand at least

20 feet away from the pump and turn their heads away
from the manifold.

D. The operator must position himself/herself away from

the hinged side of the manifold.

E. Wearing safety glasses, grasp the clamp arm weldment

and carefully pull it open to the primary (safety) position.
STOP and wait approximately 20 seconds. This will
allow the pressure to release.

F. After the pressure has been released, open the clamp

arm weldment and swing the hinged discharge cone
open.

G. Remove blockage with a round 2-foot length of reinforc-

ing steel rod. Flush the manifolds with water. Make sure
the 3 x 2 in. reducer is clear of any blockage before
closing the discharge cone.

H. After the blockage has been cleared and the pump

manifold has been thoroughly flushed with water, close
the hinged discharged cone and lock into place.

8. Avoiding Setting of the Mix in the System

To avoid setting of the concrete mix in the system when
waiting more than 30 minutes between concrete loads, flush
the system depending on job factors (such as presence of
accelerators and job site temperature) and your particular
mix design.

Clearing a Mix from the System

If, for any reason, the mix should set up in the system, the following
procedure is suggested:

When disconnecting hoses, use
is under pressure!

1. Disconnect the hoses from the pump and wash the pump out
immediately. For example:, if you had 200 ft. of system out, you
would disconnect each hose.

2. Reconnect the first hose and fill the hopper with water. DO
NOT try to push all the concrete out of all of the hose lines at
one time.

3. Clean it out by pushing water through the first hose off the
pump, then continue progressing through all the hoses, until
all the system is clean.

4. If waiting time is excessive, it would be wise to wash out the
pump and hoses and start over when the new truck arrives.
This can be avoided by being observant to the pump and
system, also taking into consideration the above factors
affecting the mix.

CAUTION -

Hose Pressure Hazard

extreme

CAUTION! The hose

I. Before reconnecting hose to the reducer, start the en-

gine and pump two or three shovels of concrete through
the reducer. This will insure that all the blockage has
been cleared.

J. Shake out around 2 feet of concrete before reconnecting

hose to pump. After this is done, connect hose to pump
and resume the pumping operation.

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 31

C-30HDN OPERATING INFORMATION

Down-Hill Pumping

Downhill pumping can be difficult on some jobs. The slurry
procedure would be the same as explained on the pages titled
Operating Suggestions. It is suggested that a sponge 2”x 4”x 6”
be placed in the hose before the start of pumping. Wet the sponge
before placing it in the hose.

The reason for using the wet sponge is to keep the slurry from
running too far ahead of the concrete and so reducing the
possibility of separation. When the pump is stopped, the material
can flow slowly down, due to gravity, and cause the hose to
collapse.

When pumping is resumed, you can expect a blockage at the
point of hose collapse. To prevent this from happening, the hose
can be “kinked off ” at the discharge end when the pump is stopped
to prevent the gravity flow of the material in the hose.

The use of stiffer mixes when pumping down-hill will decrease
gravity flow of the material in the hose and will assure a smoother
operation between the cam roller bearing and cam plate. As with
any job, make sure that the hose and the couplings are in good
workable shape.

Vertical Pumping

When pumping vertically up the side of a building, above 40 feet,
we would recommend the installation of
fastened at intervals as necessary to support the pipe. Ninety
degree, long radius pipe sweeps should be installed at the top
and bottom of the steel line.

Use a 25 ft. hose, or short section, off the pump; and for the balance
of the horizontal distance to the vertical line, use steel pipe. This
type of installation has been satisfactory on many jobs being
pumped in excess of 100 feet high. Line pressures are always less
using steel pipe as compared to hose.

When pumping vertically using
to go higher than 50 feet with hose. The hose should be tied off
at intervals of 10 feet, if possible. Special attention should be given
when tieing the hose off at the top as the hose will have a tendency
to stretch when filled with concrete. This will increase the possi­bility of a blockage at the point where the hose is tied off. To avoid
this, a long radius of 90 degree elbow is recommended. The
suggested place to tie off is on the hose, under the clamp.

all hose

steel pipe

, it is recommended not

securely

Valve Seats

If the volume at the end of hose starts to decrease gradually and
eventually almost stops, it is quite likely that the
had excessive wear and need replacement. Once they have
reached a certain wear point, they may “channel out” rapidly and
material will reciprocate past the ball on each stroke.

The hollow
dents or appears to be badly worn. Sand and aggregate materials
in some areas are extremely sharp and hard and therefore highly
abrasive. Under these conditions when pumping stiff mixes, or to
high elevations which cause line pressures, it will be noted that
valve components may have short wear life.

If this condition exists, it is advisable to remove the manifold only,
and inspect the lower seat at the end of each day. If it appears that
the seat is beginning to “channel out, replace before starting the
next day’s pour.

The upper valve seat can be inspected after each washout by
running your finger around lower edge of seat where the ball
makes contact. You can reach this from the inside of the hopper.
Be sure that the engine is turned off.

Pulsation

A slight pulsation of the hose will always be noticeable near the
pump. Excessive pulsation of the hose near the pump is normally
due to higher than average line pressures caused by stiff, harsh
mixes, or extremely long pumping distances.

The use of 2 -1/2” I.D. hose in these extreme cases reduces line
pressures or the addition of slight amounts of water to the mix, if
permissible, will permit easier pumping. The use of certain
pumping admixtures may help.

If excessive pulsation exists in the hose, it is advisable to use
burlap or some means of wear protection under the hose at points
where the hose may wear through the outer cover; e.g. over forms,
steel or sharp curbs.

Cam Roller

If the cam roller does not ride on the cam profile smoothly, it may
be caused by insufficient line back-pressure; e.g., a wet mix with
only 50 feet of hose. Add more hose as necessary. It can also be
caused by cavitation or the passing of over-sized aggregates
through the valving, causing it to skip.

steel ball

should be replaced when it starts to show

valve seats

have

NOTE

Snap-Joint

It is strongly recommended that steel
pipe be used on ALL vertical pump-
ing for safety and convenience.

PAGE 32 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

When using Snap-Joint couplings with gaskets to join hose, see
that they are washed clean after each job. Keeping the hose ends
clean (heavy duty) is very important for the best job setup. A thin
coat of grease on the rubber gasket or dipping both coupling and
gasket in water before coupling the hose will make for easier
installation.

C-30HDN PUMP — TOWING GUIDELINES

Towing Safety Precautions

CAUTION - Local Towing Regulations

Check with your county or state safety towing regulations
department before towing your

To reduce the possibility of an accident while transporting the
pump on public roads, always make sure that the trailer and the
towing vehicle are in good operating condition and both units
are mechanically sound.

The following list of suggestions should be used when towing
the pump:

■

Make sure that the hitch and coupling of the towing vehicle
are rated equal to, or greater than the trailer "gross vehicle
weight rating" (GVWR).

■

ALWAYS inspect the hitch and coupling for wear. NEVER
tow the light tower's trailer with defective hitches, couplings,
chains etc.

■

CHECK the tire air pressure on both the towing vehicle and
the trailer. Also check the tire tread wear on both vehicles.

■

ALWAYS make sure the trailer section of the pump is
equipped with a "Safety Chain".

■

ALWAYS attach trailer's safety chain to frame of towing
vehicle.

■

ALWAYS make sure that the vehicle and trailer directional,
backup, brake, and trailer lights are connected properly and
are working properly.

■

Remember in most cases the maximum speed unless
otherwise posted for highway towing is 45 MPH, however
before towing your pump, check your local state, and county
vehicle towing requirements. Recommended off-road towing
is not to exceed 10 MPH or less depending on type of terrain.

■

Place

chocked blocks

while parked.

■

Depending on soil conditions and location it may be
necessary to place
bumper to prevent

■

Inflate tires to correct pressure, inspect tires for cuts, and
excessive wear. See Table 3 (Tire Wear Troubleshooting).

support blocks

tipping

concrete pump

underneath wheel to prevent

underneath the trailer's

, while parked.

.

rolling,

■

Check wheel mounting lug nuts with a torque wrench.
Torque wheel lug nuts as described in the "

Requirements

■

Make sure brakes are synchronized and functioning properly.

■

Check tightness of suspension hardware (nuts and bolts).

■

Avoid sudden stops and starts. This can cause skidding, or
jackknifing. Smooth, gradual starts and stops will improve
gas milage.

■

Avoid sharp turns to prevent rolling.

■

Retract wheel stand when transporting.

■

DO NOT transport pump with fuel in the fuel tank.

CAUTION -

If the trailer coupler is deformed replace entire coupler. NEVER
tow the pump with a defective trailer coupler. There exist the
possibility of the trailer separating from the towing vehicle.

Pump Trailer Vehicle Connection

1. Check the vehicle hitch ball, and trailer coupler for signs of
wear or damage. Replace any parts that are worn or
damaged before towing.

2. Use only the 2-inch ball diameter with a towing capability of
5,000 lbs. (2,268 kg) as indicated on the trailer's coupler.
Use of any other ball diameter will create an extremely
dangerous condition which can result in separation of the
coupler and ball or ball failure.

3. Be sure the coupler is secured to the hitch ball and the lock
lever is down (locked).

4. Attach safety chains as shown in Figure 2. Remember to

cross

5. After towing for about 50 miles recheck the entire towing
system for tightness.

Recommended Maintenance

1. Smear ball socket and clamp face with chassis grease.
Periodically oil pivot points and were surfaces of coupler
with SAE 30 W motor oil.

2. When parking or storing the concrete pump, keep the coupler
off the ground so dirt and other debris will not build up in the
ball socket.

Lug Nut Torque

", Table 5.

NEVER Use Defective Couplers

the safety chains.

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 33

C-30HDN PUMP — TOWING GUIDELINES

Figure 24 shown below illustrates the typical towing
application that should be used when towing the pump.

Figure 24. Towing Applications

PAGE 34 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — TRAILER SAFETY GUIDELINES

Trailer Safety Precautions

CAUTION -

ALWAYS make sure that the trailer is in good operating condi-

tion. Check the tires for proper inflation and wear. Also check the
wheel lug nuts for proper tightness.

This section is intended to provide the user with trailer service
and maintenance information. Remember periodic inspection of
the trailer will ensure safe towing of the equipment and will
prevent damage to the equipment and personal injury.

It is the purpose of this section to cover the major maintenance
components of the trailer. The following trailer components will
be discussed in this section:

■

Tires

■

Lug Nut Torquing

■

Suspension

■

Electrical

General Trailer Safety

The following list defines the major trailer components:

1. Fuel Cell – Provides an adequate amount of fuel for the
equipment in use. Fuel cells must be empty when transport­ing equipment.

2. Frame Length – This measurement is from the ball hitch to
the rear bumper (reflector).

3. Frame Width – This measurement is from fender to fender.

4. Jack Stand – Trailer support device with maximum pound
requirement from the tongue of the trailer.

5. Coupler – Type of hitch used on the trailer for towing. This unit
employes a 2 in. ball.

6. Tires Size – Indicates the diameter of the tire in inches (10,
12, 13, 14, etc. ), and the width in millimeters (175, 185, 205
etc.). The tire diameter must match the diameter of the tire rim.
This unit employes 7.35 x 14 in. tires.

7. Tires Ply – The tire ply (layers) number is rated in letters:
2-ply, 4-ply, 6-ply, 8-ply, 10-ply etc. This unit employes
4-ply tires.

8. Wheel Hub – The wheel hub is connected to the trailer's axle.

9. Tire Rim – Tires are mounted on a tire rim. The tire rim must
match the size of the tire.

10. Lug Nuts – Used to secure the wheel to the wheel hub.
Always use a torque wrench to tighten down the lug nuts. See
Table 5 and Figure 4 for lug nut tightening and sequence.
This unit employes 5 lug nuts to secure the wheel to the hub.

11. Axle – This trailer employes a torsion bar type suspension,
which can support 3,500 lbs.

12. Electrical – Electrical connectors (looms) are provided with
the trailer so that brake lights and turn signal lights can be
connected to the towing vehicle. See Figure 36 for proper
wiring connections.

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 35

C-30HDN PUMP — TRAILER SAFETY GUIDELINES

Tires/Wheels/Lug Nuts

Tires and wheels are a very important and critical components
of the trailer. When specifying or replacing the trailer wheels it is
important the wheels, tires, and axle are properly matched.

CAUTION -

DO NOT attempt to repair or modify a wheel. DO NOT install

an inter-tube to correct a leak through the rim. If the rim is
cracked, the air pressure in the inter-tube
may cause pieces of the rim to explode
(break-off) with great force and can cause
serious eye or bodily injury.

Tires Wear/Inflation

Tire inflation pressure is the most important factor in tire life.
Pressure should be checked cold before operation. DO NOT
bleed air from tires when they are hot. Check inflation pressure
weekly during use to insure the maximum tire life and tread
wear.

Table 3 (Tire Wear Troubleshooting) will help pinpoint the causes
and solutions of tire wear problems.

NOTE

General Trailer Safety

ALWAYS

removing or installing force fitted
parts. Failure to comply may result in
serious injury.

wear safety glasses when

Torsion Bar Suspension

The torsion bar suspension and associated hardware
(Figure 3) should be visually inspected every 6,000 miles for
signs of excessive wear, elongation of bolt holes, and loosening
of fasteners. Replace all damaged parts (suspension) immedi­ately.

Figure 3. Major Suspension Components

PAGE 36 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — TRAILER SAFETY GUIDELINES

Lug Nut Torque Requirements

It is extremely important to apply and maintain proper wheel
mounting torque on the trailer. Be sure to use only the fasteners
matched to the cone angle of the wheel. Proper procedure for
attachment of the wheels is as follows:

1. Start all wheel lug nuts by hand.

2. Torque all lug nuts in sequence (Figure 4). DO NOT torque
the wheel lug nuts all the way down. Tighten each lug nut in
3 separate passes as defined by Table 4.

3. After first road use, retorque all lug nuts in sequence. Check
all wheel lug nuts periodically.

stnemeriuqeReuqroTeriT.5elbaT

eziSleehWssaPtsriF

SBL-TF

"2152-0204-5356-05

"3152-0204-5356-05

"4152-0206-05021-09

"

5152-0206-05021-09

"6152-0206-05021-09

ssaPdnoceS

SBL-TF

ssaPdrihT

SBL-TF

Figure 26. Wheel Lug Nuts Tightening Sequence

NOTE

NEVER!

use an pneumatic air gun

to tighten wheel lug nuts.

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 37

C-30HDN PUMP — MAINTENANCE (PUMP)

Preventive Maintenance

It is extremely important to maintain this pump due to the
highly abrasive nature of concrete material.

1. Inspect all drive components for loose or worn bolts.

2. Drive belt/chain should be checked to remove all slack. Refer
to adjustment procedure.

ALWAYS

3.

4. Keep entire pump clean of concrete to prevent build-up.

5.

ALWAYS

grease.

NOTE

carry extra “O” rings.

grease every fitting daily. Use only premium grade

Over greasing will not damage
pump.

3. Turn the pump engine off before filling the hopper with water.
Engine vibration at idle may “separate” material in the hop­per, causing jamming in manifold when pumping is resumed.

4. Fill hopper with water and resume pumping. The water will
push the concrete through the line. When the water runs clear
at the end of the hose, disconnect lines and shake out all the
sand and sediment so the lines will be clean for the next pour.

5. It is important that the hinged discharge cone on the pump
manifold be opened and all remaining concrete (rock and
sand) be thoroughly washed out. This must be done after
each job to prevent concrete build up in the discharge
manifolds and 3” discharge elbow.

Piston Cup Wear

The

rubber piston cups

will require

depends on many factors, proper oil level, oil cleanliness,

General Clean-up Procedure

1. Ensure that there is no blockage in the hose and line
(Pumping Tips, step 8) or in the manifold (Pumping Tips,
step 7). If a blockage exists, clear it to ensure proper
operation the next time it is used. At the end of every pour,
or during long delays during a pour, the pump and deliv­ery system must be thoroughly cleaned by removing all
concrete material.

2. Proper wash out of all materials or build up within the
pump manifold and hoses following the pumping opera­tion will prevent problems when starting the next job. After
completion of the pour, pump the remaining concrete in
the hopper through the discharge line.

To avoid the possibility of separation

NOTE

during clean-up, do not pump the
concrete below the inlet ball in the
hopper. It is best to leave approxi­mately 3 to 4 inches of concrete above
the inlet ball.

abrasiveness of aggregrate being pumped and material slump
etc.

NOTE

As the rubber piston cups wear, fine cement particles will
accumulate in the bottom of the lubrication box. Once this cement
paste reaches 1-inch in height, it is recommended that the
lubrication box be drained (flushed) and cleaned and the oil
replaced with new SAE 30 motor oil.

NOTE

are a natural wear component and

periodic replacement. The life of the rubber cups

IMPORTANT! To ensure maximum
cup life, the oil level in the lubrication

must be

box
proper level. In addition the
lubrication box must be cleaned
periodically.

There are two clean-out ports
located at the bottom of the
lubrication box.

maintained at the

Any questions regarding the lubrication box clean-out procedure,
contact the MAYCO Service Department.

PAGE 38 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — MAINTENANCE (PUMP)

Lubrication Box

The C-30HDN model features a fully enclosed
which utilizes the

Visually inspect the oil in the lubrication box (Figure 16) by making
sure the oil is at the correct operating level as indicated by the
dip stick. Also reference the oil level decal (Figure 17) adjacent
to the lubrication box.

NOTE

CAUTION -

The oil level must be
level and oil cleaniness.

"SPLASH"

method of lubrication.

Make sure the pump is on a secure
level surface when checking the oil
level inside the lubrication box.

Checking Lubrication Oil Levels

checked daily

to ensure adequate oil

lubrication box,

Sponge Clean-out Procedure

This section will explain the recommended procedure for using

sponge

a

CAUTION - Clearing The Pump

NEVER use

the chrome finish on the pumping cylinder.

NEVER use compressed air to clean out the lines.

When using a clean-out hook to clean out the rear of the redi­mix truck, use a
some solid part of the redi-mix truck to prevent the hook from
jumping off the redi-mix truck’s hopper. Run the pump at half
throttle.

1. After completion of the pour, pump the remaining concrete in
the hopper through the discharge line. Using a shovel, clean
the sides of the hopper.

NOTE

to clean out the

muriatic acid

hose lines.

to clear the pump. Acid will dissolve

safety chain

The pump engine should be turned
OFF, as explained in General Clean
Up Procedure.

After the sides of the hopper have
been cleaned, add a small amount
of water to the remaining concrete
in the hopper and hand mix.

to secure the clean-out hook to

Figure 27. Lubrication Box Dipstick

CAUTION

NORMAL

1”

LOW

Before starting engine, check that the oil level
inside the “ ” is within the indicated
operating range. Recommended oil type SAE 30.

Figure 28. Lubrication Box Oil Caution Decal

LUBE BOX

DCL 152

2. Start the pump engine and pump the hopper all the way
down.

3. Disconnect the hose from the pump. Fill the hopper with water
and pump the remaining concrete out of the pump.

4. Open the hinged discharge cone and thoroughly wash out
all remaining concrete (sand-sediment) from the cone and
pump manifolds. Close the discharge cone and lock in place.

5. Take a sponge (2”x 4”x 6”) and soak it with water. Take the
hose that is disconnected from the pump and shake out the
concrete so that about 2 feet of it is clear. Insert the sponge
into the hose.

6. Reconnect the hose to the pump. Fill the hopper with water
and resume pumping. Run the pump approximately half
throttle. The sponge will be discharged at the end of the line
followed by clear water. At this point, the pump and lines will
be completely clean and ready for the next job.

Repeat steps 1 through 6 a few times

NOTE

to ensure that the hose lines are
thoroughly cleaned.

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 39

C-30HDN PUMP — MAINTENANCE (PUMP)

Crankshaft and Cam Assembly Procedure

1. Set bearing block (P/N EM14303) into hydraulic press. Place
bearing cup into bearing block and press in evenly. Bearing
cup should be aligned equally on both sides of bearing block.

2. Set

3. Insert bearing cone spacer (P/N EM14323) onto crankshaft

4. Place O-ring and spacer (P/N EM14302) on crankshaft. Set

5. Slide cam bushing down crankshaft and align the bushing,

6. Release pressure on the bushing, reapply pressure to bush-

7. After bushing has been fitted tightly into cam, remove from

8. Place cam bearing onto crankshaft keeping bearing loose.

9. Set crankshaft assembly into the pump box and align both

10. After crankshaft assembly is securely fastened to the pump

11. Install chain P/N EM14308. To adjust, loosen locknuts on

crankshaft

wards the top. Install spacer (P/N EM14322), O-ring (P/N
EM14326) and bearing cone (P/N EM14325) onto crank­shaft. Place bearing block on crankshaft until the bearing
cone is riding in the bearing cup.

and inside bearing block. Install second bearing cone until
it is seated inside bearing cup.

cam weldment on top of spacer. Install crankshaft key and
cam key on cam bushing (P/N EM14301).

cam and crankshaft. Install sleeve over crankshaft and align
with hydraulic press. Install cam bushing bolts loosely. Press
bushing down onto bearing assembly. Leaving pressure on
the bushing, tighten cam bolts evenly to 40-50 foot pounds.

ing and tighten bolts evenly to 40-50 foot pounds. Repeat
procedure 3 to 4 times.

hydraulic press. Remove one bolt at a time, using Loctite,
install bolts and torque to 65-70 foot pounds. Counter sink set
screw hole and install dog point set screw and second set
screw both with Loctite

NOTE

bearing assemblies with the pump box mountings.

box, place sprocket (P/N EM14307) onto the cam side of the
crankshaft assembly. Install bushing (P/N EM14309) into
sprocket. Align sprocket with sprocket on countershafts and
tighten bolts.

pusher bolts and tighten chain to approximately 1/2 in. slack
in the chain. Once chain is adjusted properly, tighten down
locknuts.

into hydraulic press with the long end to-

TM

.

Make sure the eccentric lock is
facing toward the outside of the
pumping unit.

Ball and Seat Replacement Procedure

1. Remove 3”x 2” reducer and 3” elbow from the pump outlet.
Remove exhaust gate and Y-manifold (secondary manifold).
Check ball seat and ball stop pin for wear. If any wear is
detected, the part should be replaced. Remove T-manifold
(primary manifold). Check all parts for wear. Remove hopper
and hopper seat and inspect.

2. Loosen the piston nuts and remove the piston cup assembly
and cylinders. Inspect all parts for wear and replace parts
with excessive wear. Check oiler pump for proper operation.

3. Clean all parts thoroughly, removing all foreign material and
concrete slurry. Once parts are clean, install concrete cylin­ders. Place oiler plate O-ring in place and coat with oil. Install
small O-ring on piston rod. Run oiler line through the cylin­ders and connect in the oiler fitting on the oiler plate.

4. Push oiler plate into cylinder. Install ring and felt holder, soak
felt ring in oil, then install around felt holder in cylinder. Make
sure the bronze ring is flat, then push it up flush with the ring
and felt holder.

5. Coat piston cup with oil and push it into the cylinder. Install
bushing into center of piston cup. Put small O-ring on rod,
place face plate on rod and tighten down securely. Repeat
these procedure on the opposite cylinder.

6. Thoroughly check T-manifold, ball stoppings and both steel
balls for wear. Insert an O-ring in the top flange and in the
leading edge of the manifold. Put the manifold onto the
primary side of the pump and install bolts leaving them loose.

7. Check Y-manifold for wear, install all O-rings, ball stop pin,
ball and seat. Align and install Y-manifold to T-manifold and
cylinder assembly. Tighten Y-manifold bolts first before tight­ening T-manifold bolts. After manifolds are tight, check O-rings
for slippage.

8. Insert seat into frame hole directly above the T-manifold. The
seat orifice should fit inside the frame itself, then the seat sits
on top of the orifice. On the dura-seat, set the big end of the
seat in the frame. The seat, or the small part of the dura-seat,
fits into the bottom of the hopper.

9. After tightening the manifold bolts and inserting the seats in
place, set the hopper over the seat and align the bolt holes.
Tighten bolts, check O-ring and seat for alignment.

10. Check exhaust gate for wear, install and align gate onto
Y-manifold. Insert O-ring into exhaust gate flange and close
gate. Lock down lever and adjust clamp arm.

11. Install 3 in. elbow and 3x 2 in. reducer. Fill hopper half full and
check for leaks.

PAGE 40 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — MAINTENANCE (PUMP)

Clutch Lining Replacement
(For P/N EM14320 Clutch Assembly Only)

The normal lining thickness measures 3/16 of an inch. If the
clutch starts to slip or make an usual noise, it may be necessary
to replace the lining. Please note that the lining retaining rivets

should not be exposed

The following procedure will assist you in replacing the lining.

1. Remove worn out lining and rivets. Check clutch springs and
flyweights for wear.

2. Cut 1/8 in. off of each end of clutch lining. Slide lining into
place. Insert one r ivet into clutch lining hole. (Make sure rivet
goes from inside out.) Wedge a flathead screwdriver be­tween clutch flyweight and rivet head.

3. Adjust screwdriver so that the rivet sticks out from the clutch
housing approximately 1/8 of an inch. With a flat punch, pen
the ends on the rivet so that it locks in place with the clutch
housing. Repeat this procedure for all remaining clutch
rivets.

to the rotating weight.

NOTE

The clutch lining is a normal
maintenance item and will require
periodic replacement.

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 41

C-30HDN PUMP — MAINTENANCE (PUMP)

Bearing Installation

1. Install the bearing components on the crankshaft making full
contact with the back side of the crank disc as indicated the
symbol #. See Figure 25 below.

2. Install the bushing in the cam weldment and slide it onto the
crankshaft until contact is made with the bearing spacer.

NOTE

It is important that the

Assembly

is installed properly.

Bearing

3. Tighten the 3
on the bushing towards the bearing spacer.

allen head bolts

“A” while exerting pressure

Figure 29. Bearing/Cam Bushing Installation

PAGE 42 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — MAINTENANCE (PUMP)

Detent Hole (3) Installation

1. After the bearing assembly has been is installed , remove the

three “dog type” allen head set screws (B) to allow detents to
be drilled. See Figure 26 below.

The detent holes will prevent the

NOTE

2. Use a 9/32” drill to “detent” half (minimum 1/8” deep). Then

“chase” the threads with a 3/8-16 bottom tap and blow out the
chips after drilling, to be certain that the “dog type” allen set
screws bottom in the detents to prevent the taper bushing
from sliding laterally.

bushing from sliding away from the
bearing spacer when the pump is
under load.

3. If this procedure is not followed closely the heavy loading of
the bearing during pumping operation causes the Timken
cone bearings to create lateral forces which will move the
taper bushing and allow the Timken
separate from the race and subsequently fail.

NOTE

4. Drill (detent) the shaft under the allen set screws “B” to prevent
the bushing from the sliding away from the bearing spacer
when the pump is under a load.

™

™ cone bearings to

Position the ‘O’ ring on the O.D. of the
bearing spacer during assembly to
assure proper bearing adjustment.

Figure 30. Detent Holes

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 43

C-30HDN PUMP — MAINTENANCE (PUMP)

Figure 31. V-Belt and Drive Chain Adjustment

V-Belt And Drive Chain Adjustment

1. Loosen the pillow bearing bolts (Figure 27) only to the point
where the bolts will remain snug.

2 Unlock the two pusher bolt lock nuts.

3. Turn each pusher bolt clockwise an equal amount until the
chain is to proper adjustment of approximately 3/8 to 1/2 in.
slack in the chain. It is very important that the pulley side and
the chain side (pillow block bearings) are within 1/16” of an
equal distance.

4. This distance can be checked by using a tape measure or a
straight edge ruler, measuring from the inside of the pusher
bolt bracket to the face of the pillow block bearing.

5. The drive chain should be adjusted regularly to remove all
slack. Once all slack is removed, DO NOT over-adjust, as this
will overload the shaft bearings. A slack chain on the crank
drive creates backlash and shock loads on the shafts and
bearings which results in shorter wear/life of the drive com­ponents.

6. Lubricate the chain regularly. Note-it is advisable to carry a
spare chain and master links for replacement in the field if
necessary.

7. Drive belts should be regularly adjusted to prevent slippage.
To adjust the belts, loosen the engine mounting bolts and
move the engine until there is a maximum 3/4 in. deflection
in the belts, retighten the engine mounting bolts.

8. Frequent inspections should be made on all drive compo­nents to make certain that all bolts and nuts remain tight.

NOTE

Prior to adjusting the chain, place the
lobe of the cam in the down position.
The chain should have 83 rivets,
Including one each, half-link and full
link.

PAGE 44 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — MAINTENANCE (PUMP)

Roller Chain Application

A properly selected, installed and maintained
(Figure 28) is an extremely versatile means of power transmission.
It is possible, however, to greatly reduce a chain’s life and even
induce failure if the chain is abused through improper installation,
operating or maintenance procedures. In certain applications,
failure can lead to personal injury or property damage.

Figure 28. Drive Chain

Recommendations and comments on how to get the most from
your roller chain drive are given in this section. The drive chain
used in the MAYCO C-30HDN pump is manufactured by the
"DIAMOND CHAIN COMPANY

Working Loads

UTS-Ultimate Tensile Strength-is the one time pull required to
break the chain. For single strand chain, the load (pull) applied
to the chain in service should never exceed 1/6th of the UTS for
the chain being used except as noted below.

TM

"

drive chain

Installation and Drive Alignment

Chain and sprockets (Figure 29) must be installed correctly.
Sprockets must be properly aligned and sprocket shafts must be
parallel so the drive will run in a plane perpendicular to them.
Axial alignment should be checked with a straight edge which
will extend across the finished sides of the sprockets. They should
be true-running with minimum wobble and eccentricity. The higher
the drive speed, the more important these details become.

Figure 29. Shaft and Drive Sprocket Alignment

The chain should be installed so the slack span is properly
tensioned. To check chain tension (Figure 30), turn one sprocket
to tighten the upper span of the chain while holding the other
sprocket fixed. The lack span should have 4-6% of span length
in the mid-span movement for horizontal drives and 2-3% for
vertical drives.

It is possible to exceed the allowable working loads for a limited
number of cycles, but you should contact Diamond Chain
Company before this is considered. A roller chain should never

be loaded above 50% of UTS for even one cycle. To do so
will damage the chain structure and reduce its capacity.

The UTS or one time breaking load of multiple strand chain is
the UTS of a single strand chain times the number of strands; i.e.,
two strand chain is twice as strong as single.

When allowable working loads are considered, however, the
capacity of each strand in a multiple strand chain is only 65% of
the single strand rating; thus, three-strand chain would rate not
three times single but only 1.95 times. This is because the chain
load cannot be exactly distributed across all three strands of the
three-strand chain.

A roller chain’s capacity can be significantly reduced if it is twisted
or bent sideways in the direction of the pin axis. Exercise
particular care in alignment of hoist or other applications where
loads are suspended near personnel.

Figure 30. Drive Chain Tension

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 45

C-30HDN PUMP — MAINTENANCE (PUMP)

Drive Chain Lubrication

As a chain articulates in entering and leaving a sprocket, there
is relative movement between pin and bushing surfaces. These
surfaces wear causing chain elongation. If a lubricant film can
be maintained between the pin and bushing, the wear rate is
very slow and the chain wear life very long. Maintaining the oil
film is relatively simple at low speeds but becomes increasingly
difficult as the speed increases.

It is recognized that good lubrication is not possible in many
applications, so shorter wear life must be accepted in these
situations.

In general, chain wear leads to rough or unsatisfactory service
prior to actual chain breakage. Good lubrication can help to
prevent chain failure by providing protection against rust or
corrosion. Rusting can allow pits to form in the surfaces of the
chain parts causing stress concentration points. This can lead to
chain failure at relatively low loads.

The clearance between pin and bushings is very small
(Figure 31), on the order of .003 to .005 inches. A lubricant must
be thin enough to flow into the chain. SAE 30 weight oil is about
right for room temperature. Lighter oil should be used for lower
ambients and heavier for higher operating temperatures. Grease
should not be used as it cannot penetrate chain clearances.

Figure 31. Chain-Link Cross Section

PAGE 46 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — MAINTENANCE (PUMP)

Assembling and Disassembling Drive Chain

CAUTION -

You may be seriously injured if you attempt to install the drive
chain while the pump is running. TURN-OFF the engine and
lock out gears and sprockets before attempting installation.

Once installed, the drive chain must be guarded to prevent
personal injury or properly damage in the event the chain
separates during operation.
guard removed.

CAUTION -

The components of the drive chain are hardened parts. Striking
these parts may cause metal chips to break off from the chain
or the tools used resulting in personal injury.

During all stages of chain disassembly
and assembly, wear
prevent metal parts or chips from entering
your eyes and have personnel in the
immediate area do likewise.

Drive Chain Safety

NEVER

run pump with drive chain

Eyesight Hazard

safety glasses

to

Chain-Link Pin Removal

1. If chain is of cotter pin- type construction, remove cotters.

2. If chain is riveted type construction, grind pin heads off so pin

ends are flush with the linkplate.

3. Drive pins out of linkplate using a Diamond pin extractor

Model P/N 113 or 135. Some multiple strand chains or large
pitch models will require a hammer and punch or a press to
remove the pins.

Installation Of Coversides

Diamond Chain coversides are manufactured three different
ways:

■

Slip Fit

■

Modified Press Fit

■

Full Press Fit

Installation of Spring Locks and Cotter-Pins

NOTE

Modified

some patience and tools to assemble
and/or disassemble. Use vice grips,
plumbers pliers or a small hammer to
drive coversides onto pins.

and

Full Press Fits

require

After coversides have been installed, install spring locks or cotters
(depending on chain design). Avoid using bent or worn cotters
or spring locks. After spring locks (or cotters) are installed, lightly
tap pin ends to position these parts snug against the coverside
for additional support.

Tips To Remember

■

Chian will break if mused or abused

■

Serious injury or property damage can result if chain is
installed incorrectly.

■

Select, install, guard and maintain chain in accordance with
equipment manufacturer and "Diamond Chain Company's
recommendations.

■

Read chain assembly instructions before attempting to install
chain on pump sprocket wheel.

■

Knowing more about how the chain is constructed may help
in assembly and disassembly. Further information may be
obtained by calling or writing Diamond Chain Company

TM

.

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 47

C-30HDN PUMP — ENGINE RPM ADJUSTMENT

ENGINE RPM ADJUSTMENT

CAUTION -

The governor is factory adjusted and needs no further
adjustment. DO NOT adjust governor bolt unless absolutely
necessary. Refer to the

NOTE

This procedure should be performed without engine load. The
hopper should be empty of material or water. The throttle control
knob must be pushed into the IDLE position.

PROCEDURE

The following procedure references Figure X:

1. Remove the linkage rod from governor arm (ball joint) to
carburetor, using 7mm and 8mm wrenches and adjust
overal rod length to 12.5 inches (31.75 cm.) Once rod length
has been correctly adjusted, reconnect to the governor arm.

DO NOT Adjust the Engine Governor

Engine RPM Hunting

Prior to final adjustment, the engine
must be warmed up until the water
temperature become 176 degrees F
(80 degrees C).

section.

3. Adjust the RPM Adjustment Bolt:

A. With the engine running, turn the

B. Leave the throttle setting in this position when adjusting

C. Locate the

D. Start the engine and verify using a tachometer that the

The governor and solenoid adjustments are now complete and
the linkage will now allow full carburetor throttle shaft movement
if ever needed. Under nomal conditions these adjustments will
not be noticeable, however during conditions of extreme heavy
loading an increase in performance can be observed.

pump control switch

to the ON position, slowly pull the
toward the full throttle position. The engine speed should
read between 2,750~2,800 RPM’s.

high RPMs and turn the engine OFF. The close proximity
of moving parts makes this adjustment safer with the
engine OFF.

High RPM adjustment bolt

wrench, loosen the jam nut and slowly turn adjustment
bolt until it touches the stop on the governor arm. Lock
jam nut in place.

engine speed now reads between 2,750~2,800 RPM’s.
If engine RPM's are not within the above range, repeat
step 3 until corrected.

throttle control knob

. Using a 12 mm

2. Throttle Cable Travel Adjustment:

A. Push the

spring should have no tension.

B. Adjust the idle speed by starting the engine and adjust-

ing the carburetor idle set screw between 850~900
RPM’s (use a tachometer to verify engine RPM’s).

C. Once the idle adjustment has been made, turn the pump

control switch to the ON position. Using a tachometer
observe that the idle speed remains between 850~900
RPM's.

throttle cable

NOTE

all the way in. Note the governor

If the clutch engages it will be
necessary to adjust the low engine
idle RPM. Adjust the lower linkage
rod until the engine speed reads
830~900 RPM's.

ENGINE RPM HUNTING

The term "
attended by vibration. Be sure to check for engine hunting when
maximum engine speed under no load has been adjusted.

1. Quickly move the throttle lever to fully open position under

2. If hunting occurs more than three times, move the governor

3. Repeat Step 1 until "

4. If specified maximum RPM is changed due to adjustment of

hunting

" means sudden fluctuations in engine speed

no

load

to determine whether engine "hunting" action occurs

more than three times.

adjustment bolt 4 mm (0.16 in.) towards the outer end of the
sliding groove.

hunting

times.

governor bolt, adjust the tension of governor spring with
governor adjustment not until engine speed reaches specific
speed under no load.

" does not occur more than three

PAGE 48 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — ENGINE RPM ADJUSTMENT

Figure 36. Linkage Adjustment

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 49

C-30HDN PUMP — ENGINE TROUBLESHOOTING

Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown,
please take a remedial action following the diagnosis based on the Engine Troubleshooting (Table 6) information shown below and
on the proceeding page. If the problem cannot be remedied, please leave the unit just as it is and consult our company's business
office or service plant. For more detail troubleshooting methods, refer to the NISSAN Operation and Maintenance manual supplied
with your pump.

GNITOOHSELBUORTENIGNE.6ELBAT

NOTPMYSMELBORPELBISSOPNOITULOS

?noitisop"POTS"nisirevellortnocdeepS .noitisop"TRATS"otrevellortnocdeepsteS

ufevitcefeD.pmupleufecalpeR

sitratsrotratstonlliwenignE

deyaled

.revodenruteb

ratston

.t

nacenignehguohtla,

lliwenigneserutarepmetwoltA

feD.yrettabecalpeR

sanoosspotstubserifenignE

.ffodehctiwssiretrats

?pmuple

?deggolcretlifleuF .knatnaelcdnaretlifleufecalpeR

?enilylppusleufytluaF .enill

?wolootnoisserpmoC

?wolooterusserpliO .erusserplioenignekcehC

dedeecxetimilerutarepmetgnitratswoL

?yrettabevitcefeD .yrettabecalperroegrahC

?kcihtootlioenignE

?yrettabevitce

?noitisopPOTSnirevelelttorhT .noitisopN

?dekcolbretlifleuF.retlifleufecalpeR

?dekcolbylppusleuF .metsysleuferitneehtk

?dionelosleuftamelborplacirtcelE.eriw7#gnisuriapeR

r

cehC

eufriaperroecalpeR

rotsujdA.sevlavdnarednilyc,notsipkcehC

.launamriaperenignerepriape

lochtiwylpmoC

.ytisocsivlioreporp

.tnemnorivneretniwrof

URotrevelelttorhtnoitisopeR

dnasnoitcurtsnignitratsd

liofoepyttcerrochtiwesacknarcenignellifeR

natleuF.leufddA

gnirudflestiybspotsenignE

.noitarepolamron

?ytpmek

?dekcolbretlifleuF.retlifleufecalpeR

?pmupleufevitcefeD.pmupleufecalpeR

erpliolacinahceM

?liowoloteudenigneehtspots

rosnesnwodtuhseruss

.yrassecen

PAGE 50 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

firosnesnwodtuhsliowolecalpeR.lioddA

C-30HDN PUMP — ENGINE TROUBLESHOOTING

)DEUNITNOC(GNITOOHSELBUORTENIGNE.6ELBAT

NOTPMYSMELBORPELBISSOPNOITULOS

?ytp

meknatleuF.retlifleufecalpeR

?deggolcretlifleuF.retlifleufecalpeR

dnatuptuo,rewopenignewoL

.deeps

dnatuptuorewopenignewoL

iA .retlifriaecalperronaelC

tsuahxekcalb,deepswol

.ekoms

gnitaehrevO

ignetcerrocnI.gnimittsujdA

?snoinuepiptaskaeL nethgitdnaepatsnoinuepipdedaerhtkcehC

levellioenignE ?levellioenignetcerroC

looctneiciffusnI.hsinelpeR

?tlebnafesooL.tlebnaftsujdA

?llufoot

?dekcolbretlifr

?tna

?tlebdelioronroW.tlebecalpeR

?tatsomrehtevitareponI.t

?pmupretawnroW.pmupretawecalpeR

?p

acrellifrotaidarytluaF.pacrotaidarecalpeR

?metsysgniloocniriA .metsysgniloocfotraphcaenethgiteR

?gnimiten

?etauqedanisignitnevknatleuF .detnevylet

.deriuqerasnoinu

?secnaraelcevlavtcerrocnI .noitacificepsenignerepsevlavtsujdA

atsomrehtecalpeR

?rotaidarykaelrodeggolC .rotaidarecalperroriaper,hsulF

auqedasiknattahterusnE

?tnemtsujdaronrevogreporpmI .snoitidnocdeificepsehtotronrevogtsujdA

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 51

C-30HDN PUMP — WIRING DIAGRAM

Figure 37. Wiring Diagram

PAGE 52 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — WIRING DIAGRAM (TAIL LIGHTS)

Figure 38. Trailer Tail Lights Wiring Diagram

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 53

APPENDIX — C-30HDN CONCRETE MIX INFORMATION

The following information has been extracted from actual testing laboratory reports. The purpose of this printing is only to help
create a better understanding of the importance of uniform gradation and proportioning of materials which affect pumpability of
concrete mixes. These weights and proportions illustrate that when the sieve analysis is ideal, the sand/rock ratio can be adjusted
(65% sand 35% rock) and pumpability should be excellent.

EXAMPLE #1 (A California Test Lab. Report)

JOB: Building Foundations (Water Project)

Sacks per cu./yd. 6.5 designed for 2,500 lbs. in 28 days

Gallons per sack 7.1

Washed Sand-#200 wash 1.3

Organic matter-OK

Specific gravity (SSD) Sand-2.58; Pea Gravel-2.60

Sieve analysis-percent passing

Material 1.5” 1” 3/4” 3/8” #4 #8 #16 #30 #50 #100 #200

W.C. Sand 100 99.7 79.1 60.4 36.5 14.3 4.0 1.1

Pea Gravel 100 3.0

% Comb. 100 66 51 39 23 9 3 1.0

DESIGN FOR ONE YARD OF CONCRETE (SATURATED & SURFACE DRY):

Absolute volume of aggregate in one cu. yard: 17.78 cu. ft.

Specific gravity of aggregates in one cu. yard: 2.58

Weight of aggregates in one cu. yard batch: 2850 lbs.

% BATCH SPEC. GRAVITY ABS. VOL.

W.C. Sand 65 1800 2.58 11.56

PEA GRAVEL 35 1000 2.60 6.22

WATER 46 gal. 1

CEMENT 6.5 sk. 611

TOTAL 27.00

ADMIXTURE: None

SLUMP 4”

REMARKS This mix designed for pumping

NOTE: Due to the availability of well-graded sand as shown in the above sieve analysis,

this mix pumped very successfully.

PAGE 54 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

APPENDIX — C-30HDN CONCRETE MIX INFORMATION

A.S.T.M. STANDARD SPECIFICATION FOR GRADING AGGREGATE

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 55

APPENDIX — C-30HDN CONCRETE MIX INFORMATION

Consolidated Rock Products Co., Division of Tests
3/8” Pea Gravel STANDARD PUMP MIXES (one-half inch minus)
NOTE: All weights shown are one cubic yard with S.S.D. aggregates.

CRP Mix Number 6004 .......................... 6005 ............................. 6006 .......................... 6007

Design Slump (in.) 6” (15 cm) ............. 6” (15 cm) .................6” (15 cm) ............. 6” (15 cm)

Cement, SACK. 7.0 ................................ 7.0 ......................................7.0 ................................ 7.0

Cement, Lbs. 658 (298 kg) ............ 658 (298 kg) ................658 (298 kg) ............ 658 (298 kg)

w/Con Sand (1 lb.) 2031 (920 kg) ............ 2982 (943 kg) ................ 1879 (851 kg) ............ 1943 (880 kg)

Gravel #4(9.51 mm) 677 (307 kg) ............ 693 (314 kg) ................806 (365 kg) ............ 832 (377 kg)

TOTAL AGGREGATE 2708 (1227 kg) .......... 2775 (1257 kg) ............. 2685 (1216 kg) .......... 2775 (1257 kg)

ADMIXTURE

Pozzolight 311-1 lb. 1.4 (.63 kg) ............. 1.4 (.63 kg) .................1.4 (.63 kg) ............. —

Water, Design (gals.) 50.0 (189 liters) ......... 53.0 (200 liters) ............50.0 (189 liters) ......... 53.9 (200 liters)

Mater, Max. (gals.) 50.0 (189 liters) ......... 53.0 (200 liters) ............53.0 (200 liters) ......... 53.0 (200 liters)

NOTE: Multiply above kilograms and liters by 1.308 to obtain the proportions for one cubic meter of concrete.

Consolidated Rock Products Co., Division of Tests

3/8” Pea Gravel STANDARD PUMP MIXES (one-half inch minus)

NOTE: All weights shown are one cubic yard with S.S.D. aggregates.

CRP Mix Number 6000 .......................... 6001 ............................. 6002 .......................... 6003

Design Slump (in.) 6” (15 cm) ............. 6” (15 cm) .................6” (15 cm) ............. 6” (15 cm)

Cement, SACK. 6.5 ................................ 6.5 ......................................6.5 ................................ 6.5

Cement. Lbs. 611 (276 kg) ........... 611 (276 kg) ................611 (276 kg) ............ 611 (276 kg)

w/Con Sand (1.1 lb.) 2062 (934 kg) ........... 2112 (957 kg) ................ 1924 (872 kg) ............ 1971 (893 kg)

Gravel #4 (9.51mm) 687 (311 kg) ........... 704 (319 kg) ................ 825 (374 kg) ............ 845 (383 kg)

TOTAL AGGREGATE 2749 (1245 kg) .......... 2816 (1276 kg) ............. 2749 (1245 kg) .......... 2816 (1276 kg)

ADMIXTURE

Pozzolight 311-1.3lb. 1.3 (.59 kg) ............. 1.3 (.59) ......................—

Water, Design (gals.) 50.0 (189 liters) ......... 53.0 (200 liters) ............50.0 (189 liters) ......... 53.9 (200 liters)

Mater, Max. (gals.) 50.0 (189 liters) ......... 53.0 (200 liters) ............53.0 (200 liters) ......... 53.0 (200 liters)

NOTE: Multiply above kilograms and liters by 1.308 to obtain the proportions for one cubic meter of concrete.

PAGE 56 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

APPENDIX — C-30HDN RECOMMENDED SHOTCRETE SYSTEM

MAYC0

RECOMMENDED SHOTCRETE SYSTEM

10

1-800-30-MAYCO

N

D

H

0

-3

C

1

2

1/2 STANDARD

AIR HOSE

3

AIR COMPRESSOR

(125 TO 250 CFM)

3

7

8

9

11

13

14 15

10

3/4 STANDARD

AIR HOSE

Figure 39. Shotcrete System

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 57

APPENDIX — C-30HDN RECOMMENDED SHOTCRETE SYSTEM

RECOMMENDED SHOTCRETE SYSTEM

NO. PART NO. PART NAME QTY. REMARKS

1 EM28904 ......... 3" “B” COUPLING

2 EM23946 ......... 3"-90° ELBOW

3 EM28903 ......... 2 1/2" S/J COUPLING

4 EM28005DD .... 3"X 2 1/2 REDUCER

5 EM28061 ......... 2 1/2"X 10FT. PIPE

6 EM24849 ......... 2 1/2"X 50FT. HOSE

7 EM28001DD .... 2 1/2"X 2" REDUCER

8 EM23815D ....... 2 1/2"X 2" REDUCER

W/AIR VIBRATOR

9 EM28902 ......... 2" S/J COUPLING

10 EM23101 ......... AIR VIBRATOR

11 EM28131 ......... 2"X 2 ELBOW

12 EM24841 ......... 2"X 25 FT. HOSE

13 EM23808D ....... NOZZLE ASSEMBLY

14 EM23806 ......... 1 3/8" NOZZLE TIP

15 EM23807 ......... 1 1/4" NOZZLE TIP

General recommendations

■

If the site will permit, use steel pipe from the pump
to the pool perimeter. It will reduce line pressures
which is highly recommended.

■

The vibrator on the reducer by the pool improves
pumpability.

■

Turn both air vibrators off whenever the pump is
stopped to prevent separation of mix.

■

The air vibrators are low consumption (4.2 scfm).

■

Leave the air on at the nozzle when the pump is
stopped to prevent clogging of air the hoses in the
air insert.

■

Use item #11 (steel elbow) at the edge of the pool
to prevent collapse of the rubber hose, which can
cause blockage.

PAGE 58 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

APPENDIX — C-30HDN RECOMMENDED SHOTCRETE ACCESSORIES

RECOMMENDED SHOTCRETE ACCESSORIES

NOTE

Figure 40. Shotcrete System Accessories

Use a 1-3/8" rubber nozzle tip for a wide spray pattern. Use a 1-1/4" rubber nozzle tip for a narrow spray
pattern. DO NOT INSTALL THE NOZZLE AT THE END OF THE HOSE UNTIL THE FIRST MATERIAL

HAS PASSED THROUGH THE ENTIRE HOSE LENGTH.

Disassemble and clean the nozzle assembly thoroughly after each job. Grease all threads before re­assembly. DO NOT close the air valve when pumping is stopped as a continued air flow keeps the air
passages clean.

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 59

APPENDIX — C-30HDN RECOMMENDED SHOTCRETE ACCESSORIES

RECOMMENDED SHOTCRETE ACCESSORIES

NO. PART NO. PART NAME QTY. REMARKS

1 EM26107 HOPPER SCREEN 1
2 EM231011 AIR VIBRATOR 1
3 EM132 BOLT, 1/2-13X2 2
4 EM23407 AIR HOSE 1
5 EM23408 BUSHING 1
6 EM23411 VALVE 1
7 EM912073 NIPPLE 2
8 EM23409 COUPLING 1
9 EM923346 WASHER, 1/2 LOCK 2
10 EM406 NUT, HEX 1/2-13 2
11 EM23818 2"X25' GROOVED HOSE

EM24841 2"X25' RAISED HOSE

EM23845 2"X50' GROOVED HOSE
12
13
14
15
16
17
18
19

20 AIR HOSE ..................................................... NOT SUPPLIED BY MAYCO

21 EM23808 NOZZLE ASSEMBLY ...................... 1 .......... INCLUDES. ITEMS W/

EM23802 ADAPTER 1

*

EM23803 GUN BODY 1

*

EM20816 “O” RING 1

*

EM23804 AIR INSERT 1

*

EM23805 NOZZLE CLAMP 1

*

EM23806 NOZZLE TIP, 1-3/8" 1

*

EM23807 NOZZLE TIP, 1-1/4" 1

*

EM911076 STREET ELBOW 1

*

*

PAGE 60 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

APPENDIX — C-30HDN C-30HDN SLUMP TEST PROCEDURE

1. To obtain a representative sample (concrete), take sev­eral samples at three or more regular intervals throughout
the discharge of the mixer or truck. DO NOT take samples
at the beginning or end of the discharge.

2. Dampen the inside of the cone and place it on a smooth,
moist, nonabsorbent, level surface large enough to ac­commodate both the slumped concrete and the slump
cone. Stand on the “foot pieces” throughout the test
procedure to hold the cone firmly in place.

3. Fill the cone 1/3 full by volume (Figure 41-A) and rod 25
times with a 1/2” dia x 24” lg. bullet-pointed steel rod. (This
is a specific requirement which will produce non-stan­dard results unless followed exactly.) Distribute rodding

Figure 41-C. Slump Test

evenly over the entire cross section of the sample.

4. Fill cone another 1/3 (Figure 41-B) which will make the
cone 2/3 full by volume. Rod this second layer 25 times
with the rod penetrating into, but not through, the first layer.
Distribute rodding evenly over the entire cross section of
the layer.

5. Fill cone to overflowing (Figure 41-C). Rod this layer 25
times with rod penetrating into but not through, the second
layer. Distribute rodding evenly over the entire cross
section of this layer.

6. Remove the excess concrete (Figure 41-D) from the top
of the cone, using the tamping rod as a screed.

Figure 41-B. Slump

Test (2/3 Full)

2/3 FULL

(Full-Overflow)

FULL

(OVERFLOW)

Figure 41-D. Slump Test

(Removing Excess Concrete)

7. Lift the cone vertically (Figure 41-E) with a slow even
motion. DO NOT jar the concrete or tilt the cone during this
process. ( Invert the withdrawn cone, and place it next to,
but not touching the slumped concrete.

Figure 41-E. Slump Test

8. Lay a straight edge (Figure 41-F) across the top of the
slumped cone. Measure the amount of slump in inches
from the bottom of the straight edge to the top of the
slumped concrete at a point over the original center of the
base . The slump operation must be complete in a maxi-

BULLET POINTED

STEEL ROD

1/3 FULL

1/2 DIAMETER

24 INCHES LONG

FOOT
PIECE

Figure 41-A. Slump Test (1/3 Full)

(Cone Invert)

Figure 41-F. Slump Test

(Measurement)

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 61

C-30HDN — EXPLANATION OF CODE IN REMARKS COLUMN

The following section explains the different symbols and
remarks used in the Parts section of this manual. Use the
help numbers found on the back page of the manual if there
are any questions.

NOTICE

The contents and part numbers listed in the parts
section are subject to change without notice. Multiquip
does not guarantee the availability of the parts listed.

SAMPLE PARTS LIST

NO. PART NO. PART NAME QTY. REMARKS

1 12345 BOLT ......................1 .....INCLUDES ITEMS W/%

2% WASHER, 1/4 IN. ...........NOT SOLD SEPARATELY

2% 12347 WASHER, 3/8 IN. ...1 .....MQ-45T ONLY

3 12348 HOSE ..................A/R ...MAKE LOCALLY

4 12349 BEARING ..............1 .....S/N 2345B AND ABOVE

NO. Column

Unique Symbols — All items with same unique

symbol

QTY. Column

Numbers Used — Item quantity can be indicated by a

number, a blank entry, or A/R.

A/R (As Required) is generally used for hoses or other
parts that are sold in bulk and cut to length.

A blank entry generally indicates that the item is not sold
separately. Other entries will be clarified in the “Remarks”
Column.

REMARKS Column

Some of the most common notes found in the “Remarks”
Column are listed below. Other additional notes needed
to describe the item can also be shown.

Assembly/Kit — All items on the parts list with the
same unique symbol will be included when this item is
purchased.

Indicated by:

“INCLUDES ITEMS W/(unique symbol)”

(@, #, +, %, or >) in the number column belong to the
same assembly or kit, which is indicated by a note in the
“Remarks” column.

Duplicate Item Numbers — Duplicate numbers indicate
multiple part numbers, which are in effect for the same
general item, such as different size saw blade guards in
use or a part that has been updated on newer versions
of the same machine.

NOTICE

When ordering a part that has more than one item
number listed, check the remarks column for help in
determining the proper part to order.

PART NO. Column

Numbers Used — Part numbers can be indicated by a

number, a blank entry, or TBD.

TBD (To Be Determined) is generally used to show a
part that has not been assigned a formal part number
at the time of publication.

A blank entry generally indicates that the item is not sold
separately or is not sold by Multiquip. Other entries will
be clarified in the “Remarks” Column.

Serial Number Break — Used to list an effective serial
number range where a particular part is used.

Indicated by:

“S/N XXXXX AND BELOW”
“S/N XXXX AND ABOVE”
“S/N XXXX TO S/N XXX”

Specific Model Number Use — Indicates that the part
is used only with the specific model number or model
number variant listed. It can also be used to show a
part is NOT used on a specific model or model number
variant.

Indicated by:

“XXXXX ONLY”
“NOT USED ON XXXX”

“Make/Obtain Locally” — Indicates that the part can
be purchased at any hardware shop or made out of
available items. Examples include battery cables, shims,
and certain washers and nuts.

“Not Sold Separately” — Indicates that an item cannot
be purchased as a separate item and is either part of an
assembly/kit that can be purchased, or is not available
for sale through Multiquip.

PAGE 62 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN — SUGGESTED SPARE PARTS

C-30HDN Concrete Pump

w/Nissan Engine

1 Units

Qty. P/N Description

6 ...... EM14904 ............ PISTON CUP KITS

4 ...... EM18804 ............ 4 1/2" STEEL BALL

4 ...... EM14818 ............ 4" STEEL BALL

6 ...... EM14903 ............ BALL STOP PIN KIT

10 ..... EM18801 ............ 0-RING MANIFOLD

1 ...... EM14308 ............ CHAIN

2 ...... EM26313 ............ HALF LINK

2 ...... EM26314 ............ MASTER LINK

1 ...... EM14334 ............ COMPENSATOR SPRING

2 ...... EM14408 ............ BRONZE RING

2 ...... EM903092 .......... CAM ROLLER BEARING

2 ...... EM14315 ............ V-BELT

2 ...... EM14842 ............ LOWER SEAT

2 ...... EM14843 ............ UPPER SEAT

2 ...... EM26310 ............ CLUTCH LINING

10 ..... EM18409 ............ O-RING

2 ...... EM20763 ............ FUEL FILTER

2 ...... EM20328TKIT .... BEARING KIT

1 ...... EM28004DD ....... REDUCER 3" X 2"

1 ...... EM23946 ............ 3" ELBOW

2 ...... EM28904 ............ 3" CLAMP

4 ...... EM289041 .......... 3" GASKETS

1 ...... EM14159 ............ HOPPER SCREEN

1 ...... EM207091-1 ....... SOLENOID

8 ...... 22401M7714 ...... SPARK PLUG

4 ...... 1520855400 ....... ELEMENT, OIL

1 ...... 11920H9915 ...... V-BELT, GOVERNOR

1 ...... 2215723G15 ...... ROTOR ASSY, ENGINE

1 ...... 2211577A11 ....... SIGNAL ROTOR SET

1 ...... 22020G5111 ......

1 ...... 22023G5110 ...... SEAT-SYNK

1 ...... 2216278A10 ....... CAP ASSY, DIST. W/POINT ASSY

1 ...... 1172077702 ....... V-BELT, FAN

NOTE

TRANSISTOR-IGN UNIT

Part numbers on this Suggested
Spare Parts List may supercede or
replace the P/N shown in the text
pages of this book.

C-30HDNConcrete Pump

3 Units

Qty. P/N Description

10 ..... EM14904 ............ PISTON CUP KITS

10 ..... EM18804 ............ 4 1/2" STEEL

10 ..... EM14818 ............ 4" STEEL BALL

12 ..... EM14903 ............ BALL STOP PIN KITS

25 ..... EM18801 ............ MANIFOLD O-RINGS

3 ...... EM14308 ............ CHAINS

10 ..... EM26313 ............ HALF LINK

10..... EM26314 ............ MASTER LINK

2 ...... EM14334 ............ COMPENSATOR SPRING

4 ...... EM14408 ............ BRONZE RING

2 ...... EM903092 .......... CAM ROLLER BEARING

6 ...... EM14315 ............ V-BELT

6 ...... EM14842 ............ LOWER SEAT

6 ...... EM14843 ............ UPPER SEAT

3 ...... EM26310 ............ CLUTCH LINING

20 ..... EM18409 ............ O-RING

6 ...... EM20763 ............ FUEL FILTER

2 ...... EM20328TKIT .... BEARING KIT

2 ...... EM28004DD ....... REDUCER 3" x 2"

2 ...... EM23946 ............ 3" ELBOW

4 ...... EM28904 ............ 3" CLAMP

10..... EM289041 .......... 3" GASKET

2 ...... EM14159 ............ HOPPER SCREEN

1 ...... EM14300 ............ CAM

1 ...... EM14801 ............ T-MANIFOLD

1 ...... EM14819 ............ Y-MANIFOLD

2 ...... EM14335 ............ PISTON ROD

1 ...... EM26788 ............ REMOTE SWITCH

1 ...... EM903176 .......... CONN. ROD BEARING

1 ...... EM14305 ............ CRANKSHAFT

2 ...... EM14807 ............ PUMP CYLINDER

2 ...... EM18800 ............ COMPENSATOR CYLINDER

1 ...... EM14320 ............ CLUTCH

2 ...... EM207091-1 ....... SOLENOID

24..... 22401M7714 ...... SPARK PLUG

12..... 1520855400 ....... ELEMENT, OIL

3 ...... 11920H9915 ...... V-BELT, GOVERNOR

3 ...... 2215723G15 ...... ROTOR ASSY, ENGINE

3 ...... 2211577A11 ....... SIGNAL ROTOR SET

3 ...... 22020G5111 ...... TRANSISTOR-IGN UNIT

3 ...... 22023G5110 ...... SEAT-SYNK

3 ...... 2216278A10 ....... CAP ASSY, DIST. W/POINT ASSY

3 ...... 1172077702 ....... V-BELT, FAN

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 63

NAME PLATE AND DECALS

C-30HDN PUMP — NAMEPLATE AND DECALS

PAGE 64 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — NAMEPLATE AND DECALS

NAME PLATE AND DECALS

NO PART NO PART NAME QTY. REMARKS

1

*

2

*

3

*

4

*

5

*

6

*

7 DECAL, NAME PLATE ............................. 1 ........... CONTACT PARTS DEPT.

8

*

9

*

10 DCLC30HDNKIT KIT, DECAL .............................................. 1 ........... INCLUDES ITEMS W/

DCL152 DECAL, CAUTION OIL LEVEL 1
EM932 DECAL, CAUTION, MANIFOLD 1
EM1028 DECAL, MULTIQUIP MAYCO 2
508594 DECAL, CAUTION READ MANUAL 2
EM508594 DECAL, C-30HDN 2
EM513165 DECAL, MAINTENANCE 1

98022 DECAL, WARNING 1
34536 DECAL, OWNER'S MANUAL 1

*

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 65

C-30HDN PUMP — COMPENSATOR PISTON ROD ASSY.

COMPENSATOR PISTON ROD ASSY.

PAGE 66 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — COMPENSATOR PISTON ROD ASSY.

COMPENSATOR PISTON ROD ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EM14805 ROD END ................................... 1 ........... INCLUDES ITEMS W/+

1A+ EM148053 BUSHING 1
2 EM968446 NUT HEX, 3/4”-10 GR5 2
3 EM14332 ROD SPRING GUIDE 3/4” 1
4 EM14331 SPRING BACKING PLATE 1
5 EM14333 SPRING RETURN 1
6 EM14806 PISTON GUIDE ASSY. 1
7 EM505490 FITTING 1
8

*

9

*

10
11
12
13 EM916001 FITTING 2
14 EM510266 SCREW, HHC 1/2-13X3 1
15 EM621 WASHER 2
16 492584 NUT LOCK 1/2” DIA. 1
17 EM14335 PISTON ROD 1
18 EM14336 PISTON GUIDE 1
19 EM505489 FITTING 1
20 EM14334 COMPENSATOR SPRING 1
21 EM18409 O-RING 1
22 EM98032 PLATE, OILER 1
23 EM14407 O-RING, OILER PLATE 1
24 EM14410 RING & FELT HOLDER 1
25 EM14408 BRONZE RING 1
26 EM14411 PISTON CUP-BLACK 1
26 EM98051 PISTON CUP-ORANGE 1
27 EM14412 BUSHING 1 1/4 CRS 1
28 EM18409 O-RING 1” 2
29 EM14413 FACE PLATE 1

30 EM18800HD PUMPING CYLINDER ................ 1 ............ 2-1/2" LIP SLEEVE

31 EM26525 O-RING, CYLINDER BOX 1
32 EM968446 NUT HEX, 3/4-10 3
33 EM16493 FELT RING 1
34 EM148053 BUSHING 1

35 EM20328TKIT BEARING KIT ............................ 1 ............ INCLUDES ITEMS W/

EM903163 BEARING CUP 1
EM20814 BEARING BUSHING 1
EM20813 SPACER 1

*

EM903162 BEARING CONE 2

*

EM20816 O-RING 2

*

*

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 67

C-30HDN PUMP — CONNECTING ROD - DRIVE SIDE ASSY.

CONNECTING ROD - DRIVE SIDE ASSY.

PAGE 68 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — CONNECTING ROD - DRIVE SIDE ASSY.

CONNECTING ROD - DRIVE SIDE ASSY.

NO. PART NO. PART NAME QTY. REMARKS

7 EM505490 FITTING 1
8

*

9

*

10
11
12
21 EM18409 O-RING 1
22 EM98032 PLATE, OILER 1
23 EM14407 O-RING, OILER PLATE 1
24 EM14408 BRONZE RING 1
25 EM14410 RING AND FELT HOLDER 1
26 EM14411 PISTON CUP-BLACK 1
26 EM98051 PISTON CUP-ORANGE 1
27 EM14412 BUSHING 1 1/4 CRS 1
28 EM18409 O-RING 1” 2
29 EM14413 FACE PLATE 1

30 EM14807HD CONCRETE CYLINDER ............. 1 ............ 3-3/4 IN. LIP SLEEVE

32 EM968446 NUT HEX, 3/4-10 3
33 EM14808 PISTON ROD ASSY. 1
34 EM16493 FELT RING 1

35 EM20328TKIT BEARING KIT ............................ 1 ............ INCLUDES ITEMS W/

EM903163 BEARING CUP 1
EM20814 BEARING BUSHING 1
EM20813 SPACER 1

*

EM903162 BEARING CONE 2

*

EM20816 O-RING 2

*

*

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 69

ROCKER ASSY.

6

25

C-30HDN PUMP — ROCKER ASSY.

7

1

27

7

45

7

LUBRICATION

POINT

31

35

24

23

22

21

8

20

LUBRICATION

POINT

31

1

A

B

C

7

14

30

23

24

41

36

28

46

37

8

LUBRICATION

POINT

38

37

40

KIT

3

4

2

2

PAR T O F

FRAME

1

LUBRICATION

POINT

43

NOTES:

A. LONG STROKE SETTING.

1

HIGHER VOLUME, LOWER PSI.
B. STANDARD SETTING, NORMAL.
C. SHORT STROKE SETTING.

REDUCED VOLUME, HIGHER PSI.

SEE CRANKSHAFT ASSEMBLY

2

PAGE 70 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

LUBRICATION

POINT

12

11

10

13

9

17

16

15

10

19

44

5

8

27

7

6

7

7

3

25

C-30HDN PUMP — ROCKER ASSY.

ROCKER ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EM14329 SHAFT ROCKER ARM 1
2 EM14116 JOURNAL BLOCK 1
3 EM963180 SCREW, HHC 3/4”-10X5 2
4 EM923350 WASHER LOCK 3/4” SPRING STEEL 2

5 EM14846 CAM ROCKER ARM ..................................... 1......... INCLUDES ITEMS W/

6 EM133 BOLT 1”-14X2” HEX HEAD 1
7 EM603 WASHER 1” LOCK 1
8 EM916001 ZERK FITTING 1
9 EM903092 BEARING ASSY. 1
10 EM20347 BEARING SPACER 2
11 EM402434 BEARING BUSHING 1
12 EM20344 SPECIAL BOLT 1
13 EM916001 ZERK FITTING 1
14 EM417 NUT FLEX LOCK 1
15 EM402456 OILER FELT 2
16 EM607 WASHER, FLAT 5/8” 1
17 EM20349 OILER PLUG, PLASTIC 1
19 EM969038 NUT STOP REG. 3/4”-10 1
20% EM903163 BEARING CUP 1
21% EM20814 BEARING BUSHING 1
22% EM20813 SPACER 1
23% EM903162 BEARING CONE 2
24% EM20816 O-RING 2
25 EM105 BOLT 1”-14X6” HEX HEAD 1
27#+ EM203262 BRONZE BUSHING 4
28 EM20364 CONNECTING ROD 1
30 EM702 SCREW ALLEN HEAD 3/8”-16X3/4” 1
31 EM505490 ZERK FITTING 1

35 EM14328 ROCKER ARM ASSY. ................................... 1 ......... INCLUDES ITEM W/#

36 EM402996 SEAL PLATE 1
37 EM20336 O-RING 1
38 EM903176 BEARING 1
40 EM20338 SPACER 1
41 EM923348 WASHER LOCK 5/8 1
42 EM503982 BOLT 1/2-13X5 1

43 EM98043 FORGED CRANKSHAFT .............................. 1 ......... INCLUDES ITEM W/

44 EM405 NUT, LOCK 3/4"-10 2
45 EM202 BOLT, HEX 1-8 X 6 LG. 1

46 EM20328TKIT BEARING KIT ............................................... 1......... INCLUDES ITEMS W/%

+

*

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 71

COUNTERSHAFT ASSY.

C-30HDN PUMP — COUNTER-SHAFT ASSY.

9

11

1

12

NOTES:

SEE CLUTCH ASSEMBLY

1

SEE CRANKCASE ASSEMBLY

2

7

8

2

3

4

5

LUBRICATION

POINT

6

6

PAR T O F

FRAME

1

12

2

3

LUBRICATION

4

POINT

7

PAR T O F

FRAME

12

21

12

6

2

6

6

5

22

55

MASTER

LINK

HALF

LINK

60

59

PAGE 72 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

61

C-30HDN PUMP — COUNTER-SHAFT ASSY.

COUNTER-SHAFT ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EM513073 COUNTER SHAFT 1
2 EM14311 CAM BEARING 2
3 EM124 BOLT HEX 1/2 X 1-3/4 2
4 EM1621 WASHER 5” 2
5 EM923346 WASHER, LOCK1/2” 2
6 EM968011 NUT HEX, 1/2-13 2
7 EM916001 FITTING 1
8 EM14316 KEY WAY 3/8”X2.5” 1
9 EM14314 BUSHING, PULLEY 1
10 EM14313 PULLEY 1

11 EM98074 BELT, DOUBLE 81 INCHES .......................... 1 ........ UP TO S/N 211201

11 EM98089 BELT, DOUBLE 83 INCHES .......................... 1 ........ S/N 211201 AND ABOVE

12 EM143111 SET COLLAR 1
21 EM14318 SPROCKET, 13 TOOTH 1
22 EM14319 BUSHING 1
55 EM14307 SPROCKET 60 TEETH 1
57 EM1702 SCREW ALLEN HEAD 3/8”-16X3/4” 1
58 EM703 SET SCREW 3/8”-16X3/8” 1
59 EM14308 CHAIN W/MASTER LINK 1
60 EM26314 LINK MASTER 1
61 EM26313 HALF LINK 1

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 73

CRANKSHAFT ASSY.

C-30HDN PUMP — CRANKSHAFT ASSY.

57

KIT

1

54

41

52

48

51

45

34

46

24

35

42

50

2

35

LUBRICATION

POINT

49

33

46

30

55

24

32

29

23

25

31

24

LUBRICATION

POINT

28

27

31

26

43

44

56

NOTES:

SEE ROCKER ARM ASSEMBLY

1

ITEM 43 FOR ASSOCIATED
CRANKSHAFT COMPONENTS.

SEE COUNTER-SHAFT ASSEMBLY,

2

ITEM 55

32

PAGE 74 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — CRANKSHAFT ASSY.

CRANKSHAFT ASSY.

NO. PART NO. PART NAME QTY. REMARKS

23
24
25 EM505490 ZERK FITTING 1
26 EM129 SCREW, HHC 3/4-10X8-1/2 2
27 EM492628 LOCK WASHER 3/4 2
28 EM968446 NUT HEX, 3/4-10 GR5 4
29
30
31
32
33
34
35
38 EM903176 BEARING 1
40 EM402996 SEAL PLATE 1
41 EM923348 WASHER, LOCK 5/8 IN. 2
42# EM30139 SET COLLAR 1
43
44
45
46
48
49
50
51 EM128 BOLT 5/8-11X4” HEX HEAD 2
52 EM620 WASHER, SPECIAL 5/8” 2
54 EM968013 NUT HEX 5/8-11 4
55
56

57 EM98043K CRANKSHAFT FORGE ASSEMBLY ............ 1......... INCLUDES ITEM W/

EM14303 BEARING BLOCK 1

*

EM702 SCREW, ALLEN HEAD 3/8-16X3/4 6

*

EM14324 CUP BEARING 1

*

EM14323 SPACER BEARING CONE 1

*

EM14325 CONE BEARING 2

*

EM14326 O-RING 2

*

EM14322 SPACER 1

*

EM98043 CRANKSHAFT, FORGED 1

*

EM14306 KEY CRANKSHAFT 2

*

EM14302 SPACER, CAM BUSHING 1

*

EM14300 CAM ASSY. 1

*

EM14301 BUSHING, CAM 1

*

EM703 SCREW ALLEN HEAD 3/8-16X3/8 6

*

EM175 BOLT 3/8-16X1-1/4 6

*

EM14304 BEARING-CAM COMPLETE ........................ 1 ........ INCLUDES ITEM W/ #

*

EM916001 ZERK FITTING 1

*

EM14307 SPROCKET 60 TEETH 1

*

EM14309 BUSHING 1

*

*

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 75

MANIFOLD ASSY.

ACCESSORIES

5

C-30HDN PUMP — MANIFOLD ASSY.

2

14

13

12

3

11

15

6

16

7

8

17

1

30

33

31

24

4

11

27

28

21

14

23

26

PAR T O F

FRAME

19

18

12

7

13

7

9

14

7

37

38

PAR T O F

FRAME

26

27

27

7

32

32

36

35

34

PAGE 76 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — MANIFOLD ASSY.

MANIFOLD ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EM23946 ELBOW 3”X90 DEG.HD 1
2 EM28004DD REDUCER 3X2X36 HD 1
3 EM2C0B BALL 2” SPONGE 2
4 EM28904 COUPLING 3” HD *CF* 2
5 EM18409 O-RING 1” 4
6 EM14843 UPPER DURASEAT 1
7 EM18801 O-RING 6
8 EM18804 BALL 4-1/2” 1
9 EM14801 MANIFOLD T ASSY. 1
11 EM136 PIN BALL STOP 3/4-16 x 8 3
12 EM18409 O-RING 4
13 EM618 WASHER SPECIAL 4
14 EM968266 NUT JAM HEX 3/4-16 4
15 EM104 BOLT 5/8-11X2” HEX HEAD 3
16 EM923348 WASHER LOCK 5/8 SPRING 3
17 EM505882 WASHER, 5/8 3
18 EM14842 SEAT DURA LOWER 1
19 EM14818 BALL 4” 1
21 EM14819A MANIFOLD ASSY. EASY OPEN 1
23 EM18409 O-RING 2
24 EM618 WASHER SPECIAL 2
26 EM137 TEE-BOLT 3/4-10X14” 2
27 EM619 WASHER 3/4” 2
28 EM968446 NUT HEX 3/4”-10 GR5 2
30 EM14850 EXHAUST GATE “H/D” 1
31 EM963180 CAPSCREW 3/4-10X5 HEX HD G8 1
32 EM969038 NUT STOP REG.3/4-10 2
33 EM14845 ARM CLAMP 1
34 EM135 BOLT 1-1/4” -12X7” HEX HD. 1
35 EM14810 SPRING 1
36 EM451 NUT 1-1/4” -12 LOCK 1
37 EM160 BOLT 3/8-16X3/4” 1
38 EM509329 SCREW HHC 3/4-10X6 1

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 77

FRAME ASSY.

C-30HDN PUMP — FRAME ASSY.

26

41

42

39

32

44

20

E

D

I

S

-

T

F

20

E

L

40

1

43

38

34

33

30

31

21

21

23

19

17

16

21

20

14

15

22

12

18

21

20

21

11

10

8

45

27

1

28

29

35

36

37

3

NOTES:
RUBBER LIGHT SEAL IS

1

INCLUDED WITH ITEM 42.

FOR AXLE PARTS BREAKDOWN

2

SEE AXLE ASSEMBLY

PAGE 78 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

2

4

41

5

7

2

39

42

H

G

I

R

40

1

13

E

D

I

S

-

T

C-30HDN PUMP — FRAME ASSY.

FRAME ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EM513085 FRAME ASSEMBLY 1
2 EM70186 JACK STAND, REAR 1
3 EM744 CLEVIS PIN 1/2” X 4” 1
4 EM745 HAIR PIN C 5/8- 3/4” 1
5 EM14600A AXLE, ASSEMBLY 1
7 501299 WASHER THICK 1” 2
8 491689 KEY COTTER 1/8 X 2 2
10 EM492396 SCREW HHC 1/2- 13 X 2 4
11 EM621 WASHER .5” 4
12 EM406 NUT LOCK 1/2” DIA. 4
13 EM511418 FENDER RIGHT-SIDE 1
14 981635 BOLT, HHC 1/2- 13 X 3/4 6
15 6109180 WASHER LOCK 1/2” 6
16 EM512251 COVER 1
17 EM512252 COVER 1
18 EM512253 COVER 1
19 EM512250 COVER 1
20 EM492309 SCREW, HHC 16
21 0166 A WASHER, LOCK 3/8” 24
22 EM512263 ROD 1
23 EM507895 PLUG, 2 1/2 NPT 2
26 29228 HITCH, TONGUE 2" 1
27 EM969023 NUT, HEX 5/8" NC 2
28 EM507658 SCREW, HHC 5/8" NC 4-1/2 G5 2
29 EM509947 LINK, QUICK 2
30 EM14165 BOLT EYE 2
31 EM619 WASHER 3/4” WILLIAM 2
32 EM968002 NUT COUPLING 3/4- 10 2
33 EM963614 SCREW 3/4”- 10 X 3 GR.5 2
34 EM969038 NUT STOP REG. 3/4- 10 2
35 EM513078 COVER, CHASSIS BOTTOM 1
36 10136 WASHER, FLAT 3/8 8
37 EM492264 HHCS. 3/8" NC X 1" 8
38 EM929028 HOOD REST, STEEL 2
39 492363 SCREW HHC 5/16- 18 X 3/4” 4
40 EM923343 WASHER LOCK 5/16” 4
41 EM265361 BRACKET LIGHT 2
42 EM26536 TAIL LIGHT 2
43 491010 HOOD FASTENER, RUBBER 2
44 EM513087 FENDER LEFT-SIDE 1
45 25610 JACK STAND, FRONT 1

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 79

AXLE ASSY.

C-30HDN PUMP — AXLE ASSY.

PAGE 80 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — AXLE ASSY.

AXLE ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EM26518 CAP 14” CHROME 2

2 EM26615A TIRE ASSY. .......................................... 2 .......... INCLUDES ITEMS W/

3

*

4

*

5# EM26306 DUST COVER 2
6# EM968481 CASTLE NUT 2
7 EM705 PIN, COTTER 3/16X1 1/2 2
8# EM26329 WASHER 2
9# EM903113 OUTER BEARING 2
10# EM903012 OUTER CUP 2
11# EM26519 NUT 12
12# EM20612 STUD 12
13# EM26300 HUB 2
14# EM903169 INNER CUP 2
15# EM903168 INNER BEARING 2
16# EM26305 GREASE SEAL 2

17% EM20601 HUB ASSEMBLY .................................. 2 .......... INCLUDES ITEMS W/#

18% EM14600 AXLE 1

19 EM14600A AXLE WITH HUBS INSTALLED............ 1 .......... INCLUDES ITEMS W/%

WHEEL ................................................. 2 .......... CANNOT BE PURCHASED SEPARATELY

TIRE 14" ............................................... 2 .......... CANNOT BE PURCHASED SEPARATELY

*

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 81

C-30HDN PUMP — MUFFLER, AIR FILTER, AND STOP SWITCH ASSY.

MUFFLER, AIR FILTER AND STOP SWITCH ASSY.

21

22

4

5

6 7

3

8

2

1

2

9

11

10

1

12

14

13

15

16

17

18

11

1

19

3

20

NOTES:
HARDWARE IS INCLUDED

3

1

WITH ITEM 11.

AIR FILTER SUPPORT BRACKET IS

2

INCLUDED WITH ITEM 1.

STOP SWITCH MOUNTING

3

HARDWARE IS INCLUDED
WITH ITEM 19.

PAGE 82 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — MUFFLER, AIR FILTER, AND STOP SWITCH ASSY.

MUFFLER, AIR FILTER AND STOP SWITCH ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EM98076 FILTER, AIR 1
2 492364 SCREW, HHC 5/16- 18 X 1 2
3 EM513126 CLAMP, AIR INTAKE 2

4 EM513102 FLEX HOSE, AIR CLEANER ....................... 1 ............. 17.5" LENGTH 1-3/4 DIA.

5 EM513106 PANEL, FILTER SUPPORT 1
6 EM492897 WASHER, FLAT 5/16 2
7 492582 NUT, NYLOC 5/16- 18 2
8 EM963610 HHCS 3/8 X1 G5 2
9 0166A WASHER, LOCK 2
10 3019092 WASHER, FLAT 2
11 506257 U-BOLT 2

12 EM513111 FLEX TUBING, MUFFLER ........................... 1 ............. 10" LENGTH 1-1/2 DIA.

13 EM513110 SHOCK MOUNT 4
14 EM923057 WASHER, FLAT 1/4” 2
15 2101402 WASHER, LOCK 1/4” 2
16 TBD NUT 4
17 EM98078 CLAMP, 6” MUFFLER 2
18 EM515598 MUFFLER 1
19 EM14217 STOP SWITCH, ENGINE COVER 1
20 EM491873 GLAND CONNECTOR 1
21 ZE1 ELEMENT, AIR FILTER 1
22 EM98162 PRE-CLEANER 1

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 83

CLUTCH ASSY.

C-30HDN PUMP — CLUTCH ASSY.

PAGE 84 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — CLUTCH ASSY.

CLUTCH ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1

*

2

*

3

*

4

*

5

*

6

*

8

*

9

*

10
11
12
13 0166A WASHER, LOCK 3/8” 6
14 EM98071 SHAFT STUB (FLANGE), ENGINE 1
15 EM26348 KEY 1

16 EM14320 CLUTCH COMPLETE ASSEMBLY ............. 1 ............. INCLUDES ITEMS W/

492395 SCREW, HHC 1/2- 13X1-3/4” 1
EM923346 WASHER, LOCK 1/2” 1
EM621 WASHER, FLAT 1/2” SPECIAL 1
EM26321 ROTOR ASSEMBLY 1
EM918050 CLUTCH SPRING 2
EM26310 CLUTCH LINING 1
EM902204 CLUTCH BEARING 2
EM926066 RETAINING RING 2
EM926053 RETAINING RING 1

*

EM508342 SCREW, HHC M8X25 PI.25 6

*

EM26322 CLUTCH HOUSING W/LINING 1

*

*

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 85

C-30HDN PUMP — RADIATOR AND ENGINE MOUNTING BRACKET ASSY.

RADIATOR AND ENGINE MOUNTING BRACKET ASSY.

C-30HDN PUMP — RADIATOR AND ENGINE MOUNTING

2

MOTOR MOUNTING

STUDS

1

5

4

22

19

17

18

20

25

5

21

4

24

15

11

3

2

3

1

10

12

14

11

17

12

18

6

23

15

16

7

7

8

15

16

15

19

14

13

16

8

15

6

14

13

NOTES:
INCLUDED WITH ENGINE.

1

SEE RADIATOR ASSEMBLY

2

PAGE 86 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — RADIATOR AND ENGINE MOUNTING BRACKET ASSY.

RADIATOR AND ENGINE MOUNTING BRACKET ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EM64900014 SCREW, HHCS 3/8 - 16 x 7/8" 2
2 EM64700071 WASHER, LOCK 3/8 2
3 EM64700070 WASHER, FLAT .375 x .0734 x .065 6
4 EM64900156 BOLT, HEX 5/16 - 16 x 1 4
5 EM65500003 ISOLATOR 38 x 25, 3/8-16 2
6 EM513094 SCREW, SQUARE 1/2- 13 x 1-3/4” 2
7 6109160 NUT, HEX 1/2- 13 4
8 EM513040 TENSIONER, ADJUSTMENT 2
10 EM64800145 NUT, HEX 5/16 - 18` 4
11 6109160 NUT, HEX 1/2- 13 2
12 6109180 WASHER, LOCK 1/2” 2
13 513095 SCREW, SQUARE 1/2- 13X2 2
14 492584 NUT, NYLOC 1/2- 13 4
15 492600 WASHER, FLAT 1/2” 12
16 6109160 NUT, HEX 1/2- 13 8
17 6109160 NUT, HEX 1/2- 13 2
18 6109180 WASHER, LOCK 1/2” 2
19 EM64800124 NUT, HEX M8-1.25 2
20 EM94700080 WASHER, LOCK 8 MM 2
21 EM94700079 WASHER, FLAT 8MM NARROW 2
22 EM20200043 LEFT FRONT SUPPORT 1
23 EM20100042 LEFT REAR SUPPORT 1
24 EM20200042 LEFT RIGHT SUPPORT 1
25 EM20500034 BRACKET, CROSS 1

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 87

C-30HDN PUMP — RADIATOR, MOUNTING BRACKET AND HOSES ASSY.

RADIATOR, BRACKET AND HOSES ASSY.

PAGE 88 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — RADIATOR, MOUNTING BRACKET AND HOSES ASSY.

RADIATOR, BRACKET AND HOSES ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EM513116 CLAMP, 1/2” HOSE 1
2 2101402 WASHER, FLAT 1/4" 1
3 492268 HHCS 1/4" x 3/4" 1
4 EM20427 HOSE, OVERFLOW 1
5 EM64900014 HHCS, 3/8 -16 x 7/8" 1
6 EM94700071 WASHER, LOCK 3/8" 1
7 EM64700070 WASHER, FLAT .375 x .0734 x .065" 1
8 506208 CLAMP, HOSE 1
9 EM21000092 BRACKET, UPPER RADIATOR 1
10 EM68800003 CLAMP, HOSE WORM DRIVE 4
11 EM65508003 ISOLATOR 1
12 EM64800155 NUT, HEX 3/8-16 1
13 EM98079 RADIATOR HOSE, UPPER 1
14 EM98080 RADIATOR HOSE, LOWER 1
15 EM98072 RADIATOR 1
16 EM69300001 CAP, RADIATOR 13 PS1 1

17 EM21000091 BRACKET, UPPER RADIATOR .................... 1 ............. ISOLATOR MOUNT

18 EM64900101 HHCS, M8-1.25 X 20 1

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 89

C-30HDN PUMP — CONTROL BOX MOUNTING BRACKET ASSY.

CONTROL BOX MOUNTING BRACKET ASSY.

PAGE 90 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — CONTROL BOX MOUNTING BRACKET ASSY.

CONTROL BOX MOUNTING BRACKET ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 492363 SCREW, HHC 5/16- 18 X 3/4” 2
2 492582 NUT, NYLOC 5/16- 18 2
3 EM509250 SCREW, HHC M6 X 20 P-1 2
4 2101402 WASHER, LOCK 1/4” 2
5 EM513096 SUPPORT, CONTROL PANEL 1
6 EM492263 SCREW, ALLEN 3/8- 16 X 3/4” 1
7 EM513093 SUPPORT, CONTROL PANEL LOWER 1

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 91

CONTROL BOX ASSY.

C-30HDN PUMP — CONTROL BOX ASSY.

PAGE 92 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — CONTROL BOX ASSY.

CONTROL BOX ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EM513130 FRONT PANEL OVERLAY 1
2 506239 CHOKE CABLE ASSY. 1
3 12305 RED PILOT LENS DIA 5/8" 3
4 51908 12 VDC BULB 3
5 510229 THROTTLE CABLE ASSY. 1
6 EM501102 SLEEVE, ACCELERATOR COUPLING 1
7 EM491089 SCREW, 1/4 " 1
8 10958 IGNITION SWITCH 1
8 508239 CONNECTOR, PLASTIC 1
9 11078 IGNITION SWITCH KEY 1
10 EM40711 SWITCH, PUMPING CONTROL 1
11 EM513076 CONTROL BOX 1
12 EM26789 RECEPTACLE (REMOTE) 1
13 506222 HOURMETER 1

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 93

BATTERY ASSY.

C-30HDN PUMP — BATTERY ASSY.

PAGE 94 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — BATTERY ASSY.

BATTERY ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EM14705 CABLE, POSITIVE BATTERY 1
2 EM506266 COVER, POSITIVE TERMINAL 1
3 10318 BOX, BATTERY 1
4 EM492541 NUT, HEX 5/16- 18 1
5 EM923023 WASHER, FLAT 5/16 1
6 EM923343 WASHER, LOCK 5/16 1
7 EM20720 CABLE, NEGATIVE BATTERY 1
8 EM505624 COVER, NEGATIVE TERMINAL 1
9 EM491344 BATTERY, 12 VOLT 1

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 95

FUEL TANK ASSY.

C-30HDN PUMP — FUEL TANK ASSY.

PAGE 96 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — FUEL TANK ASSY.

FUEL TANK ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EM20427 HOSE, FUEL 1
2 506208 CLAMP, HOSE 1
3 EM20763 FILTER, FUEL 1

4 EM513115 ADAPTER ..................................................... 1 ............. BEFORE JULY 2005

5 EM491210 PLUG, 1/4" 1

6 EM505594 PIPE, 5/16" COPPER .................................. 1 ............. BEFORE JULY 2005

7 514722 FUEL TANK .................................................. 1 .............BEFORE JULY 2005

7 EM516550 FUEL TANK ASSY ....................................... 1 .............INCLUDES ITEM 13

...................................................................................... AFTER JULY 2005

8 2108 FUEL CAP 1

9# 12008 FITTING ....................................................... 1 ............. AFTER JULY 2005

10# 19633 BUSHING ..................................................... 1 ............. AFTER JULY 2005

11# 60058 HOSE, 4-1/2" ................................................ 1 ............. AFTER JULY 2005

12# 12009 SCREEN ...................................................... 1 ............. AFTER JULY 2005

13 EM516533 PICK UP TUBE ASSY ................................. 1 .............INCLUDES ITEMS W/#

...................................................................................... AFTER JULY 2005

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 97

HOPPER ASSY.

C-30HDN PUMP — HOPPER ASSY.

3

2

4

5

1

PAGE 98 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)

C-30HDN PUMP — HOPPER ASSY.

HOPPER ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EM14159 HOPPER SCREEN 1
2 EM14141 HOPPER 1
3 EM925191 PIN, HAIR 2
4 EM104 BOLT, 5/8”-11X2” HEX HEAD 3
5 EM507599 WASHER 5/8” FLAT 3

C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12) — PAGE 99

HOOD ASSY.

C-30HDN PUMP — HOOD ASSY.

PAGE 100 — C-30HDN PUMP — OPERATION AND PARTS MANUAL — REV. #11 (03/29/12)