Arrow Master 1350 User manual

ARROW - MASTER
MOBILE HYDRAULIC HAMMER
MODEL 1350
& 1350T
Operator’s Manual
Publication No. 5000053
(Revised 03/12)
SERIAL NUMBER:
SOLD AND
SERVICED BY:
ARROW-MASTER, INCORPORATED
1201 Seventh Street !East Moline, IL 61244
www.arrowmaster.com

5000053 01/12
Table Of Contents
Description ..........................................................1-1
Safety...............................................................2-1
Specifications ........................................................3-1
Fuels, Lubricants, & Fluids .............................................4-1
HYDRAULIC FLUID ....................................................... 4-1
FLUID MAINTENANCE ..................................................... 4-2
Operation............................................................5-1
CONTROLS ............................................................. 5-1
TRANSPORT CONTROLS ................................................. 5-11
STARTINGTHEENGINE.................................................. 5-11
PREPARATION FOR WORK ............................................... 5-12
INSTALLINGATOOL..................................................... 5-12
HYDRAULIC CREEPER DRIVE ............................................. 5-12
AUTOMATIC OPERATION ................................................. 5-14
ElectronicStrokeControl ................................................. 5-14
Mechanical Stroke Control ................................................ 5-15
JUMPSTARTING ........................................................ 5-16
TRANSPORTING THE ARROW HAMMER .................................... 5-16
EMERGENCY TOWING ................................................... 5-17
Maintenance .........................................................6-1
MAINTENANCE SCHEDULE ................................................ 6-1
Adjustments .........................................................7-1
CABLE LENGTH .......................................................... 7-1
REPLACING CABLE ....................................................... 7-1
CROSS-SLIDE BEARING ADJUSTMENT ...................................... 7-5
CARRIAGE BEARING END PLAY ............................................ 7-5
SIDESHIFT CHAIN ........................................................ 7-6
PROXIMITY SENSOR ..................................................... 7-7

5000053 11/06
Page 1-1
Figure 1-1
ARROW HAMMER COMPONENTS
5000053 11/06
Description
The Arrow Hammer Model 1350 is a highly mobile, heavy duty, pneumatic-tired hydraulic drop-hammer. The Arrow Hammer
can operate either on or off paved surfaces. The Arrow Hammer Model 1350 propels itself along its work by means of a
hydraulically controlled creeper gear. The Arrow Hammer utilizes an automotive-style transmission for transport between work
sites. The Arrow Hammer uses a hydraulic cylinder and cable actuator system to lift a weight to a specified height and then
release the weight to gravity free fall. The controls on the Arrow Hammer allow the lift and drop cycle to be repeated
automatically. The Arrow Hammer is a self-contained unit which is controlled and operated by a single person.
The Arrow Hammer is generally used in 3 different applications:
1. Breaking/demolition of concrete, rock, asphalt or other hard materials by repeated hammer blows to reduce
the size of the materials as suitable to allow easy excavation and/or recovery.
2. Cutting/sectioning of asphalt or concrete pavements into smaller sections prior to excavation.
3. Compaction by impact in confined areas.
Control of the tool lift and drop cycle on the Arrow Hammer can be accomplished hydraulically or by means of an electronic
control station. See the Operation Section of this manual for details of these optional features.

Page 1-2 - Description
5000053 01/12
Intended Application
The Arrow Hammer is designed for breaking/demolition, cutting/sectioning, compaction, and driving and impacting using
specifically designed attachments. Any other applications are considered unintended application, and are not the responsibility
of the manufacturer. Any damages resulting from such unintended application are at the sole risk of the operating contractor.
Intended application also involves strict adherence to the manufacturer's operating instructions, service instructions, and
maintenance instructions. The Arrow Hammer should only be operated, serviced, and maintained by experienced personnel who
have been instructed about any possible dangers. While working, the machine is to be operated by the driver only. The presently
valid accident prevention regulations, as well as the generally accepted safety, working medicine and road traffic regulations are
to be followed.
Any alterations to the machine which are not approved by the manufacturer, and any damages resulting therefrom, are at the sole
risk of the operating contractor. The manufacturer's operating instructions, service instructions, and maintenance instructions are
to be strictly adhered to.
Tools and Attachments
The list below contains the tools and attachments approved for use with the Arrow-Hammer. These tools and attachments are
available from the manufacturer and shall only be used as outlined.
!Tamper (36" - 914 mm) Compaction of soil, sand, and granular fill.
!Tamper (72" - 1829 mm) Compaction of soil, sand, and granular fill in deeper trenches.
!Frost Chisel Cutting frozen ground.
!Breaker Head General concrete breaking., Crack and Seat (Detensioning)
(8" - 203mm Round)
!Concrete Breaker General concrete breaking.
(4-1/2" - 114 mm Round)
!Heavy-Duty Breaker Controlled and general concrete breaking.
(2" x 8" - 51 x 203 mm)
!Concrete Wedge Breaking concrete with asphalt overlay.
!Tapered Asphalt Cutter Cutting asphalt.
!Blunt Asphalt Cutter Scoring asphalt.
!Tapered Scoring Tool Cutting concrete .
!Blunt Scoring Tool Scoring concrete.
!Post Driver Setting posts in soil.
!Rock Breaker Breaking natural rock.
!Post Hole Punch Punching round holes in soil, concrete, and asphalt.
!Trencher Making small trenches in soil.
!Star Tool Cutting round post holes in soft rock
!Post Extractor Extracting posts from soil.
Unintended Application
The Arrow Hammer should not be used:
To carry passengers who are not operating personnel of the machine.
To tow or push other machines or vehicles.
To lift or carry any materials or loads.
With any attachments or tools not specifically designed for the machine by the manufacturer.
This machine could be dangerous if it is operated by non-trained personnel, incorrectly operated by trained personnel, or misused
for unintended applications. The machine must not be operated with any guards or shields missing.

Page 2-1
5000053 01/12
SAFETY RULES
1. READ ARROW OPERATORS MANUAL.
2. VISUALLY CHECK STRUCTURES, BOLTS, CABLE, TIRES ETC., BEFORE STARTING THE ENGINE.
3. REFER TO "STARTING PROCEDURE" BEFORE STARTING THE ENGINE.
4. WEAR HARDHAT, GOGGLES, AND HEARING PROTECTION.
5. START AND OPERATE THE HAMMER FROM THE SEAT POSITION ONLY. WEAR SEAT BELT
6. KEEP PERSONS CLEAR OF THE WORK AREA.
7. NEVER MAKE ADJUSTMENTS TO THE MACHINE WHILE THE ENGINE IS RUNNING.
8. USE ONLY RECOMMENDED CABLE AND ADJUST TO AVOID HITTING THE TOP OF THE LEAD ON THE
UPSTROKE, OR CATCHING THE WEIGHT WITH THE CABLE ON THE DOWNSTROKE.
9. IT IS UNSAFE TO USE THE ENGINE SPEED HAND CONTROL LEVER FOR TRANSPORTING THE MACHINE.
10. DO NOT SMOKE WHILE REFUELING.
11. LOWER OR LOCK THE HAMMERWEIGHT WHEN MACHINE IS NOT IN OPERATION.
12. USE CREEPER DRIVE FOR LOADING AND UNLOADING.
13. LOCK HAMMERWEIGHT BEFORE STOWING LEAD ONTO LEAD BRACE.
14. STOW AND CENTER LEAD BEFORE TRANSPORTING THE MACHINE.
15. REMOVE KEY TO PREVENT UNAUTHORIZED OPERATION. 3001555
Safety
Safety is important. Make it a habit to use safe practices in all operating, maintenance and service procedures. Read
and follow the safety precautions outlined below and others recommended in this manual.
!Do not operate this machine unless you are qualified by training and/or experience in its
safe operation. Know and follow your employer's work rules, governmental regulations
and the Arrow Hammer Operator's Manual.
!Do not allow anyone except the operator to ride on the Arrow Hammer.
!Check cables daily for wear and make sure clamps are securely fastened.
!Visually check structures, bolts, cables, tires, etc. before starting.
!Refer to "OPERATION" (Section 5) before operating the machine.
!Start and operate the Arrow Hammer from the operator's seat position only.
!Wear seat belt unless unit is not equipped with ROPS.
!Do not leave the Arrow Hammer unattended while the engine is running.
!Wear hardhat, goggles, and hearing protection while in the work mode.
!Keep persons and objects clear of the machine and work area.
!Do not operate the engine in a closed or poorly ventilated building.
!Minimize dust with water spray or wear a respirator.

Page 2-2 - Safety
5000053 01/12
!Lower or lock the hammer weight when the machine is not in operation.
!Never service the machine or make adjustments while the engine is running, or the unit
is operating.
!Lock the hammer weight before lowering the lead onto the lead support brace.
!Lower and center the lead on the side for transport.
!Do not use the engine speed hand control lever during transport.
!Use safe driving or trailering practices when transporting the machine.
!Never exceed 20 mph (32 km/h) when driving the machine.
!Use the creeper drive to load and unload the machine for transport.
!Do not smoke while refueling.
!Do not refuel the machine while the engine is running.
!Do not adjust or service the unit while it is in operation.
!Use only the recommended cable and adjust the length to avoid hitting the top of the lead
on upstroke, or catching the weight on the downstroke.
!Disconnect power sources before working on electrical or hydraulic units.
!Remove the key to prevent unauthorized operation.
Escaping hydraulic fluid under pressure can have sufficient force to penetrate the
skin. Hydraulic Fluid can also become very hot and cause burns. These conditions
are capable of causing serious personal injury. Before disconnecting lines, be sure
to relieve all pressure. Before applying pressure to the system, be sure all connections are tight and that
lines, pipes, and hoses are not damaged. Use a piece of cardboard or wood, rather than hands, to search for
leaks.
NOTE: If injured by escaping or hot hydraulic fluid, see a doctor at once. Serious infection or reaction can develop if proper
medical treatment is not administered immediately.
Observe all safety features marked by proper decals. Decals are reproduced throughout this manual to familiarize the operator
with the controls and safety features of the machine.

Safety - Page 2-3
5000053 05/08
Maximum On-Site Transporting & Operating Grade Limits
The operator must be aware of, and not exceed the maximum limits to ensure the
safe operation of the machine when transporting or operating on a solid grade.
Maximum Grade Limits for On-Site Transporting
Uphill Downhill Sidehill
1st Gear Creep Mode 1st Gear Creep Mode 1st Gear Creep Mode
15
E (26.8%)
Maximum 20
E (36.4%)
Maximum 15
E (26.8%)
Maximum 20
E (36.4%)
Maximum 10
E (17.6%)
Maximum 10
E (17.6%)
Maximum
Maximum Grade Limits for On-Site Operation
Uphill Downhill Sidehill
5
E (8.75%) Maximum 10 E (17.6%) Maximum 9 E (15.8%) Maximum
Maximum sideways tilt of the machine - 10
E (17.6%)
Maximum longitudinal tilt of the machine - 20
E (36.4%)

5000053 11/06
Page 3-1
Specifications
BASE UNIT (Part No. 8000016)
SHIPPING WEIGHT (Approximate): 9,800 lbs. (4.5 t)
HEIGHT:
In working position (overall): 14'-3" (4.3 m)
Traveling position with ROPS (overall): 7'-11" (2.4 m)
LENGTH:
In working position (overall): 13'-8" (4.2 m)
In traveling position (overall): 14'-4" (4.4 m)
TREAD WIDTH:
Front Wheels: 84-1/2" (2146 mm)
Rear Wheels: 73-1/2" (1867 mm)
WHEELBASE: 97" (2464 mm)
WIDTH (overall): 88-1/2" (2248 mm)
MAXIMUM ROAD SPEED: 20 mph (32 km/h)
CHASSIS:
All-welded unitized frame.
ENGINE:
John Deere Model 4045T diesel engine. 4-cylinder, 4-cycle, 275 cubic-inch displacement (4.5 l), Bore - 4.20" (107 mm), Stroke -
5.00" (127 mm), 80 hp (60 kW) @ 2400 rpm intermittent, maximum torque of 211-ft (286 N·m) @ 1700 rpm. Equipped with
a full-flow oil filter and dry-type air cleaner.
ENGINE SPEEDS (No Load):
Hand Throttle: 2200 RPM
Foot Throttle: 2200 RPM
TRANSMISSION:
Conventional standard, synchromesh totally enclosed transmission. Three forward speeds up to 20 mph (32 km/h) and one reverse
speed.
AXLES:
Front wheel drive with single hypoid gear, axle rated at 11,500 lbs. (5.2 t) Rear wheel steering with 3,300 lbs. (1.5 t) rated axle.
CREEPER DRIVE:
Patented hydraulic creeper drive mounted directly on the transmission. Creep speed is infinitely variable up to 63 fpm (19.2 mpm)
in forward or reverse.
TRANSMISSION CREEPER INTERLOCK:
Supplied with a mechanical device that prevents the creeper gear from being engaged if the travel transmission is in gear.
TIRES:
Driving tires (Dual): Traction tread load-range D - 8" x 19.5" (203 mm x 495 mm) Inflation 70 psi (482 kPa).
Steering tires: Traction tread load-range D - 8.75" x 16.5" (222 mm x 419 mm) Inflation 55 psi (379 kPa).
SERVICE BRAKES:
Four wheel hydraulic independent system.

Page 3-2 - Specifications
Note: Arrow-Master Incorporated has a policy of continuous product research and improvement, and reserves the right to change design and specifications without notice.
5000053 11/06
PARKING BRAKE:
Mechanical parking brake, wheel mounted.
POWER STEERING:
Full power steering that allows unit to be steered when engine is not running. Steering wheel is mounted to a fixed steering
column attached to the dashboard.
HORN:
Electric 12-volt horn to comply with OSHA requirements.
STOP LIGHTS AND REFLECTOR:
Recessed combination stop and tail lights and reflectors front and rear.
FUEL TANK CAPACITY: 30 Gallons (113 l)
OIL TANK CAPACITY: 24 Gallons (91 l)
HYDRAULIC SYSTEM:
Hydraulic system consists of a tandem hydraulic driven pump driven directly from the engine crankshaft. The tandem hydraulic
pump delivers 44 gpm (167 lpm) @ 1,750 psi (121 b) for hammer activation and 16 gpm (61 lpm) @ 1,500 psi (103 b) for all other
functions. The system includes suction strainers, a return in-line filter and oil cooler.
HAMMER WEIGHT: 1,356 lbs. (616 kg)
IMPACT ENERGY (ft-lb): 13,000 (17680 N·m) Maximum
HAMMER CYCLES:
24" (.6 m) Stroke: 42 Per Minute
Full Stroke 24 Per Minute
LENGTH OF STROKE: 1' to 9' (.3 m - 2.7 m) Maximum
CABLE:
Cable type: 3/8" (10 mm) Dia. 6 x 19 strand hemp center, improved plow.
Minimum length: 51' (15.5 m) Nominal Strength: 6.1 tons (5.5 t)
LEAD:
One-piece lead that lays back hydraulically for traveling/transport.
MAST TRAVERSE UNIT:
The mast traverse unit is a hydraulically controlled chain and sprocket system that allows adjustable placement of the mast on
the lead assembly. The mast traverses on long-life machine-type ways.
MAST TRAVERSE DISTANCE (from center line of tool): 68-1/2" (174 cm)
MAST TILT:
The mast assembly pivots hydraulically, approximately 9 degrees to either side, to provide square controllable blows.
GAUGES:
Oil Pressure, Water Temperature, Hour Meter, Fuel, and Ammeter.
ELECTRICAL SYSTEM:
12-volt system with (1) one Group 31 - 750 CCA battery and a 65 amp alternator.
OPERATOR'S AREA:
Operator's area includes controls for hammer functions (actuation, stroke control, traverse, mast tilt and mast lay-back). Also
includes controls for acceleration, braking and transmission. Grip-type access step is provided for access to the seat which is
adjustable front to back.

5000053 11/06
Page 4-1
Fuels, Lubricants, & Fluids
Fuel (30 gal tank)
above 40EF.................................................................. No.2-DDiesel
below 40EF ................................................................. No.1-DDiesel
Refer to the engine manual for recommendations on other fuel requirements and content.
Cooling system (16qt.) ............................................................... EthyleneGlycol
water mixture
Engine oil (9 qt w/filter) ............................................................. SAE10W-30*
(8 qt w/o filter)
* The Engine manufacturer recommends their own brand name oil (see engine manual). Other oils may be used if they meet one
or more of the following: API service classifications CI-4, CH-4, CG-4, CF-4. Factory supplied oil is to be changed after the
first 100 hours. See engine manufacturer's manual for this engine.
Brakes ............................................................................ SAEJ1703c or
DOT 3 fluid
Hydraulic system (24galtank)......................................................... AW-20
(See detailed discussion of hydraulic fluids on the following pages) hydraulic fluid
Transmission (8-11pts.) .............................................................. SAE80or80W90
(or MIL-L-2105-D)
Drive axle ......................................................................... SAE80or80W90
(or MIL-L-2105-D)
Lube fittings ....................................................................... No.2lithium
MP grease
(Amolith #2 or
equivalent)
Wheel bearings ..................................................................... No.2lithium
MP grease
Sliding surfaces & chain ............................................................. SAE30engineoil
Idler sprocket bearings .............................................................. No.2lithium
MP grease
HYDRAULIC FLUID
Recommendations
The fluid in the hydraulic system serves as a power transmission medium. It is also the system's lubricant and coolant. Selection
of the proper fluid is a requirement for satisfactory system performance and life. The selection and care of the hydraulic fluid
will have an important effect on how the system performs and on the life of its components. The following are some of the name
brand hydraulic fluids which may be used in the Arrow hammer:
!Ashland AW-20 !Valvoline AW-20b
!Trojan 46 AW !Amoco AW 46

5000053 11/06
Page 4-2 - Fuels, Lubricants, & Fluids
Viscosity
The viscosity of the fluid is the measure of the fluid's resistance to flow; or an inverse measure of its fluidity. Arrow has
determined that under normal operating conditions, a fluid having a viscosity range between 200 SUS at 100EF and 45 SUS at
210EF provides the best overall hydraulic system performance. These fluids may carry the designation "anti-wear 20" or the ISO
classification "46AW". It may be necessary to change the viscosity of the fluid in the hydraulic system for operation in extreme
environments such as are found in the arctic. Fluids designed for these conditions are available from the oil suppliers and should
be readily available in the particular region. When selecting a fluid, make sure that the viscosity never goes below 45 SUS or
above 4000 SUS regardless of the operating temperature. In addition, select a fluid which has a pour point at least 20EF below
the lowest temperature expected to be encountered.
Use of Additives
Since most of the desirable properties of a fluid are at least partly traceable to additives, it might be assumed that additional
commercial additives could be incorporated into the fluid to make it more suitable for the hydraulic system. Refiners, however,
warn against this practice, as some additives may not be compatible with the base fluid or with the additives already existing in
the fluid. Compatibility between additives cannot be determined in the field without laboratory or test results. Therefore, leave
the selection of the additives to the manufacturer of the fluid.
Use of Synthetic Oils
Synthetic oils are laboratory synthesized chemicals which are themselves less flammable than petroleum based oils. Synthetic
oils are not compatible with the Nitrile (Buna) and neoprene seals commonly used in hydraulic components. Therefore, if special
considerations indicate a need to depart from the petroleum based fluids recommended for the Arrow hydraulic system, contact
your Arrow representative or consult the factory.
FLUID MAINTENANCE
Hydraulic fluid is not an inexpensive item. Furthermore, the use of poorly cared for or contaminated hydraulic fluid in the Arrow
hydraulic system could result in considerable damage to the system. Therefore, take proper care of hydraulic fluid while it is
being stored.
Storage and Handling
Follow these simple rules to prevent contamination of hydraulic fluid during storage and handling:
1. Store drums on their sides.
2. Before opening a drum, clean the top and the bung thoroughly so that dirt will not enter the drum.
3. Use only clean containers, hoses, etc. to transfer the fluid from the drum to the hydraulic reservoir. An
oil transfer pump equipped with 25 micron filters is recommended.
4. Provide a 200 mesh screen in the reservoir filler pipe.
Keeping the fluid clean and free from moisture will help it last much longer and avoid contamination damage to close-fitting parts
in the hydraulic components.
In-Operation Care
Proper in-operation care of the hydraulic fluid includes:
1. Prevent contamination by keeping the system tight and by using proper air and fluid filtration.
2. Follow the hydraulic fluid and filter change intervals recommended in this manual as a minimum
requirement. Dirty and dusty operating conditions will dictate a more frequent service interval.
3. Keep the reservoir filled properly to take advantage of its heat dissipating characteristics, and to prevent
moisture from condensing on the inside walls of the tank.
4. Repair all leaks immediately.
5. If the system becomes contaminated, change the fluid and filter immediately.

Page 5-1
5000053 03/12
Figure 5-11
CONTROL PANEL CONFIGURATIONS
Operation
CONTROLS
Control Panel Configurations
The Arrow Hammer may have one of three control panel configurations depending on the optional equipment specified on the
machine (Electronic Stroke Control, Mechanical Stroke Control or Mechanical Stroke Control with hydraulic cable adjust). The
three illustrations in Figure 5-1 show the different control configurations and are labeled to show the locations of individual
control valves. Refer to Figure 5-1 to better acquaint yourself with the controls on your machine.

Page 5-2 - Operation
5000053 05/08
Auto Stroke Decal
3002232
Hammer Control Decal
3002234
Hammer Valve - The hammer valve controls the primary function of the
Arrow Hammer - lifting and dropping of the hammer weight. The hammer valve
can be actuated manually, by means of a lever; or automatically, by means of a
pilot-operated hydraulic servo valve. The hammer valve control lever is located at
the right hand end of the valve control panel. The hammer valve is spring loaded
to return the control handle to the neutral (center) position when the handle is
released. Pull the handle back (toward the operator) to raise the hammer weight.
Push the handle forward (away from the operator) to lower the weight.
Auto-Manual Valve - The auto-manual valve controls the operating mode
(manual control or automatic control) of the hammer valve. The auto-manual valve
is located directly to the left of the hammer valve. THIS VALVE IS NOT
SPRING CENTERED - IT WILL REMAIN IN THE SELECTED POSITION.
The auto-manual valve has three control positions. The center position is not used.
The forward position allows manual control of the hammer weight when the
hammer valve handle is actuated. Place the control handle in the forward position
before starting the engine (on units produced after 1994, the engine starting system
is interlocked to prevent starting the machine with the hammer valve set to operate
in automatic mode). The hammer valve can be actuated manually with the auto-
manual valve in the manual/start position. Pull the control handle back to "auto"
position to place the hammer valve under automatic control.
Make sure that the stroke control trip fingers
have been adjusted to produce the desired
stroke length before placing the unit into the
automatic operating mode. Machines equipped with electronic stroke
control should be adjusted to the "zero" position to produce short
strokes upon start-up.

Operation - Page 5-3
5000053 11/06
Lead Tilt Decal
3002236
Layback Control Decal
3002233
Lead Tilt Valve - The lead tilt valve controls the vertical alignment (left to
right) of the lead. Use the lead tilt control to keep the lead plumb when operating
the unit on a slope. Keeping the lead plumb will maximize impact and minimize
wear on the hammer weight. The lead tilt control is located directly to the left of
the auto-manual valve. Push the control handle forward to tilt the top of the lead
to the right. Pull the control lever back to tilt the top of the lead to the left.
Layback Valve - The layback control valve allows the operator to raise the
lead into the operating position, or to lower the lead into the transport position. The
layback control also provides the operator with the capability to keep the lead
plumb in the fore and aft direction. Keeping the lead plumb will maximize impact
and minimize wear on the hammer weight. The layback control valve is located
directly to the left of the lead tilt control valve (just to the right of the steering
column on all machines except those having the hydraulic cable adjust option).

Page 5-4 - Operation
5000053 05/08
Sideshift Decal
3002231
Stroke Adjust Decal
3002230
Sideshift Valve- The sideshift valve allows the operator to adjust the position
of the lead to any desired location along the sideshift ways, in either direction, left
or right of the machine centerline. Push the control lever forward to shift the lead
to the right. The far right position releases the layback safety latch, Fig 5-4A. Pull
the control lever back to shift the lead to the left. DO NOT operate the sideshift
control lever when the tool is on the ground. The sideshift control valve is
located on the left side of the steering column, just below and to the right of the
creeper control valve.
Stroke Adjust Valve - The stroke adjust control valve is found only on
machines equipped with mechanical stroke control (with or without the hydraulic
cable adjust option). This valve is located directly to the right of the sideshift valve.
The stroke adjust control allows the operator to move the lower of the two trip
fingers located on the side of the hammer lift cylinder assembly. Push the control
lever forward to shorten the stroke (raises the trip finger). Pull the control lever
back to lengthen the stroke (lowers the trip finger).
If the cable length is too short, or improperly
set, it may be possible to adjust the lift height
so that the weight strikes the upper travel
limit stop blocks on the lead. Striking the travel limit stop blocks can
causeseverestructural damageto the machine. Makesure thatthelift
height and cable length are properly set to prevent damage to the
machine.

Operation - Page 5-5
5000053 05/08
Cable Adjust Decal
3002452
Creeper Drive Decal
3002235
Cable Adjust Valve - The cable adjust valve is found only on machines
equipped with mechanical stroke control and the hydraulic cable adjust option.
This valve is located on the right side of the steering column (to the right of the
layback control valve). The cable adjust valve allows the operator to fine tune the
position of the lower travel limit by adjusting the uppermost travel limit trip finger
located on the side of the hammer lift cylinder assembly. The effect of this control
on overall operation of the machine is to enhance productivity, by providing the
operator with the means for keeping the time lag at the bottom of the stroke to a
minimum, and to compensate for small changes in cable length without stopping
the machine to make mechanical adjustments. Push the control lever forward to
"shorten" or reduce slack in the cable (lowers the trip finger). Pull back on the
control lever to "lengthen" or increase slack in the cable (raises the trip finger).
If cable slack is adjusted too short, the machine will
"snatch" the weight before it has lost it's downward
momentum. Snatchingtheweightwillshortenthelife
of the cable and can lead to structural damage to the machine. The
lower stroke limit must be adjusted long enough to prevent
"snatching", and short enough to allow proper function of the travel
limit trip finger.
Creeper Valve- The creeper control valve handle is located at the far left end
of the control panel. The creeper valve controls machine direction and speed when
the machine is powered by the creeper drive system. THE CREEPER
CONTROL VALVE IS NOT SPRING LOADED TO NEUTRAL. IT WILL
REMAIN AT WHATEVER SETTING IS SELECTED. Creeper speed variation
is accomplished by valve handle position, which allows flow through the valve to
be metered. The control lever is equipped with a spring-tensioned friction
mechanism, which allows lever resistance to be adjusted. The creeper control valve
also has detents at the neutral position and at each maximum setting. The creeper
control valve is connected to the machine's service braking system so that hydraulic
fluid can be bypassed around the creeper motor when the brakes are actuated. This
feature allows the motion of the machine to be brought to a temporary halt by
applying the machine's brakes. The machine may be returned immediately to the
previously selected speed by releasing the brakes. The creeper bypass feature does
not create hydraulic pressure and therefore does not generate heat. It may be used
as frequently as needed without harming the equipment. Push the creeper control
lever forward to increase travel speed in the forward direction (or reduce travel
speed in the reverse direction). Pull the control lever back to reduce travel speed
in the forward direction (or increase travel speed in the reverse direction).
Make sure the creeper valve control lever is in
the neutral (center) position before starting
the engine. Starting the engine with the
creeper control valve lever out of the neutral position could result in
suddenunexpectedmotionwithpossibleseriousinjuryordeathtothe
operator or others.
Do not park and leave the machine with the
creeper drive engaged. Loss of hydraulic
fluid pressure in the creeper drive motor over
aperiodof timecouldresult in suddenunexpected motion.Alwaysset
the parking brake before leaving the machine or place the tool on the
ground.

Page 5-6 - Operation
5000053 05/08
Figure 5-2
Electronic Control Station
Electronic Control Station - The Electronic Control Station is found only on machines equipped with the Electronic
Stroke Control option. The control station is located to the left of the steering column, directly to the left of the sideshift control
valve. The Electronic Control Station allows the operator to adjust the upper limit of hammer weight travel when the unit is
operating. The electronic control senses the point of impact of the tool on the work surface and automatically compensates for
changes in cable length and undulations in the work surface. Thus, there is no need to provide the operator with a means of
adjusting the lower travel limit. The electronic control actuates a solenoid-operated directional control valve, which alternately
reverses the direction of hydraulic fluid flow through the pilot system for the hammer cylinder lift control valve. The Electronic
Control Station contains a power (on-off) toggle switch and control knob having graduations from 0 to 8. The position of the
adjustment knob determines the height that the unit will lift the weight on each cycle, with higher numbers corresponding to
greater lift height. The graduations on the control knob are relative, and do not correspond directly to any given amount of lift
height. The correct setting must be determined by the operator. The Electronic Control Station contains two indicator lamps.
The red lamp indicates that power to the unit has been switched on. The yellow lamp lights only during the timed lift portion of
the operating cycle. The yellow lamp will flash while the unit is operating. The indicator lamps do not have an effect on machine
function.
If the cable length is too short, or improperly set, it may be possible to adjust the lift height so that the
weight strikes the upper travel limit stop blocks on the lead. Striking the travel limit stop blocks can
cause severe structural damage to the machine. Make sure that the lift height and cable length are
properly set to prevent damage to the machine.
ParkingBrake- The machine is equipped with a foot-operated parking brake which mechanically actuates the service brakes
on the front drive axle of the machine.* The parking brake is conveniently mounted under the dashboard, just forward and to the
right of the operator. Press the parking brake pedal down firmly to apply the parking brake. To release the parking brake, pull
the brake release lever out. The parking brake should be adjusted so that braking resistance is sufficient to kill the engine when
attempting to drive the machine forward from a stopped condition in third gear with the engine speed foot control pedal fully
depressed.
* A hand-operated parking brake was used in 1992-93.

5000053 11/06
Operation - Page 5-7
Hydraulic Brake Lock Instruction Decal
3002046
Hydraulic Brake Lock - The optional hydraulic brake
locking device is located to the extreme left end of the control
panel, just below the creeper control valve handle. The hydraulic
brake lock allows the operator to retain pressure in the machine's
service brake system after the brake pedal has been released.
The hydraulic brake lock is useful in situations where it is
necessary to maintain a constant position without moving the
machine, or when using the sideshift feature to work back and
forth across the face of the work surface. Actuation of the
hydraulic brake lock also actuates the creeper motor bypass.
Therefore, the machine may be brought to a halt for a
considerable period of time without maintaining brake pedal
pressure and without changing the creep speed setting. The
hydraulic brake lock is equipped with a warning lamp to indicate
a low brake line pressure situation to the operator.* To actuate
the hydraulic brake lock, rotate the lever on the hydraulic brake
lock device either direction from vertical then apply the
machine's service brake system by depressing the brake pedal.
Release the brake pedal. To release the hydraulic brake lock,
rotate the lever back to the vertical position.
* Early production units equipped with hydraulic brake lock do
not have the warning lamp.

Page 5-8 - Operation
5000053 05/08
Creeper Drive Decal
3002241
Creeper Engagement and Interlock Mechanism- The creeper drive system hydraulic motor can be physically
engaged or disengaged with the creeper drive bull gear by means of the actuator lever and linkage located near the floor plate just
to the right of the operator's seat support pedestal.* The creeper drive interlock device is a component of the actuator mechanism
and automatically captures the gearshift lever on the transport transmission as the creeper drive is engaged. The interlock device
will not fit over the gearshift lever unless the transmission has first been placed into neutral gear. The transport transmission
cannot be shifted out of neutral gear when the creeper drive is engaged. To engage the creeper drive, rotate the creeper drive
actuator lever down (clockwise), until the lever is securely held by the lever latch. If the gears do not mesh correctly, actuate the
creeper valve control slightly to rotate the motor, then secure the lever in the engaged position.
* Prior to 1992, the creeper engagement lever was located below the hammer valve handle.
Do not start the engine with the transport transmission or creeper drive engaged.
Starting the engine with the transmission or creeper drive engaged could result in
sudden and unexpected motion.
Refer to the instructions in the section titled - STARTING THE ENGINE.
Donot parkthe machinewiththecreeperdriveengaged.Lossofhydraulicfluid inthe
creeper drive motor over a period of time could result in sudden and unexpected
motion of the machine.
Always set the parking brake before leaving the machine.
Do not attempt to operate the transport transmission with the creeper drive engaged.
Operating both drive systems simultaneously could result in severe damage
to the creeper drive system and/or other components.

Operation - Page 5-9
5000053 05/08
Engine Speed Control Decal
3002164
Push-Pull Speed Control Decal
3002449
Engine Speed Hand Control- The engine speed hand control is located
on the cowl, behind and to the right of the operator's seat. The hand control allows
the operator to set the engine to operate at a continuous speed (usually maximum)
for maximum power delivery while the machine is working. The hand control is
equipped with a friction mechanism which allows the engine to be set to
intermediate speeds if desired by the operator.*
* Early production units do not have the friction mechanism.
Do not start the engine unless the engine
speed hand control lever has been set to
"slow" position.
Do not use the engine speed hand control
lever when transporting this machine.
Use of the engine hand speed control when transporting the machine can result in the operator's inability to make rapid corrections
to speed and/or direction as dictated by travel conditions, and may also result in excessive travel speed. This machine is equipped
with a foot-operated engine speed control for use during transport. The foot-operated control automatically returns the engine
to a slower operating speed when released.