Arrow Master 1350 User manual

Publication No. 5000054
(Revised 09/12)
ARROW - MASTER
MOBILE HYDRAULIC HAMMER
MODEL 1350
Service Manual
SERIAL NUMBER:
SOLD AND
SERVICED BY:
ARROW-MASTER, INCORPORATED
1201 Seventh Street !East Moline, IL 61244
www.arrowmaster.com

5000054 09/12
Page i-1
Table Of Contents
Bolt and Cap Screw Torque Specification ...................................................i-3
Wheel Lug Nut Torque Specification .......................................................i-3
Adjustments .....................................................7-1
CABLELENGTH ................................................................ 7-1
REPLACINGCABLE ............................................................. 7-1
CROSS-SLIDE BEARING ADJUSTMENT ............................................. 7-5
CARRIAGE BEARING END PLAY ................................................... 7-5
SIDESHIFTCHAIN............................................................... 7-6
PROXIMITYSENSOR ............................................................ 7-7
Hydraulic Pressure Adjustment ......................................8-1
REQUIREDEQUIPMENT ......................................................... 8-1
HAMMER LIFT CIRCUIT .......................................................... 8-1
CONTROL CIRCUIT MAIN RELIEF ...............................................8-2,8-8
SIDESHIFTCONTROL-VALVERELIEF ...........................................8-4,8-9
TILT AND LAYBACK CONTROL-VALVE RELIEF ....................................... 8-4
PILOT-CIRCUIT RELIEF (electronic stroke control) ..................................8-5,8-9
PILOT-CIRCUIT RELIEF (mechanical stroke control) .................................... 8-5
VALVESPOOLCENTERINGADJUSTMENT.......................................... 8-6
CREEPER VALVE RELIEF ....................................................... 8-10
Mechanical System ................................................9-1
ENGINE REPAIR ................................................................ 9-1
SERPENTINEBELTREPLACEMENT ............................................... 9-1
TRANSMISSION, CLUTCH, AXLES, BRAKES, AND STEERING VALVE .................... 9-2
CREEPER DRIVE ............................................................... 9-2
AdjustmentofGearBacklash .................................................... 9-2
Creeper-Drive Motor and Pinion Replacement ....................................... 9-4
Creeper-Drive Pinion Shaft Replacement ........................................... 9-5
Creeper-Drive Bull Gear Replacement ............................................. 9-5
Creeper-Drive Housing Support Mount Replacement .................................. 9-7
TransmissionOutput-ShaftSealReplacement ....................................... 9-7
ENGINE,RADIATOR,ANDMOUNTS................................................ 9-8
Radiator Upper Mount Replacement ............................................... 9-8
Radiator and Lower Radiator Mount Replacement .................................... 9-9
EngineReplacement ........................................................... 9-9
HAMMERWEIGHTREPLACEMENT ............................................... 9-12
LEADREPLACEMENT .......................................................... 9-12
SIDESHIFTCARRIAGEREPLACEMENT............................................ 9-14
CROSS-SLIDE BEARING BLOCK REPLACEMENT .................................... 9-14
HAMMERWEIGHTSHIM-KITINSTALLATION........................................ 9-16

5000054 05/07
Page i-2
Hydraulic System ................................................10-1
PUMPSANDGEARMOTORS ..................................................... 10-1
HAMMERVALVE............................................................... 10-1
Valve-Spool Seals and Servo-Valve Assembly Replacement ........................... 10-1
Hammer Relief Valve and Seat Replacement ....................................... 10-3
Load Check Valve Replacement ................................................. 10-3
CONTROL-CIRCUIT RELIEF VALVE ............................................... 10-4
HAMMER-CIRCUIT RELIEF VALVE ................................................ 10-4
PILOT-SYSTEM ROTARY VALVE .................................................. 10-5
CREEPER-CONTROL VALVE ..................................................... 10-7
CREEPER-BYPASS VALVE ...................................................... 10-8
CUSHIONVALVE(crossoverrelief)................................................. 10-9
AUTO-MANUALVALVE......................................................... 10-10
FUNCTION-CONTROL VALVES (other than auto-manual) .............................. 10-13
PILOT-VALVE ASSEMBLY (electronic stroke only) .................................... 10-13
FLOWDIVIDER(priorityvalve) ................................................... 10-14
SIDESHIFTMOTORANDSPROCKETREPLACEMENT............................... 10-16
LAYBACK CYLINDER .......................................................... 10-17
TILTCYLINDER............................................................... 10-19
STROKE-ADJUSTANDCABLE-ADJUSTCYLINDERS ................................ 10-19
HAMMERLIFTCYLINDER(automaticcylinder) ...................................... 10-22
HYDRAULIC DIAGRAM (mechanical stroke) ........................................ 10-31
HYDRAULICDIAGRAM(electronicstroke) ......................................... 10-32
Electrical System ................................................11-1
ELECTRONICCONTROLSTATION................................................ 11-1
ElectronicControlStationReplacement ........................................... 11-1
ProximitySensor ............................................................. 11-1
ELECTRICAL DIAGRAM (firewall gauges) ........................................... 11-2
ELECTRICAL DIAGRAM (front panel gauges) ........................................ 11-4
Trouble Shooting ................................................12-1
General Trouble Shooting charts ................................................. 12-1
ELECTRONICSTROKECONTROLTROUBLESHOOTING ............................. 12-8
General .................................................................... 12-8
SensorProblems............................................................. 12-8
ReplacingtheSensor ......................................................... 12-8
Voltage Check ............................................................... 12-8
Electronic Stroke Control Trouble Shooting Chart .................................... 12-9
Solenoid Valve .............................................................. 12-11
ValveSwitch ............................................................... 12-11
ElectronicControlStation ..................................................... 12-11
Stroke Length Control ........................................................ 12-11
GovernorSetting ............................................................ 12-11
PartsListing ............................................................... 12-12

5000054 05/07
Page i-3
Table III - Bolt and Cap Screw Torque Specifications
MATERIAL
SPEC
AND
MARKING
Hex Head Bolts & Hex Head Cap Screws Socket Head Cap Screws
SAE Grade 2
ASTM A307
(No Mark)
Grade 5*
ASTM A449 Grade 8* ASTM A354 Grade 8 **
* Manufacturer’s marks may vary
** For Flat and Button Head Socket Cap Screws, use Grade 5 minimum recommended torque values.
Size
(Inches)
Grade 2
Recommended Torque*** Grade 5 Recommended Torque*** Grade 8 Recommended Torque***
lb-ft
Min. Max. NCm
Min. Max. lb-ft Min. Max. NCm Min. Max. lb-ft Min. Max. NCm Min. Max.
1/4 5 6 6.8 8.1 9 11 12.2 14.9 12 15 16.3 20.3
5/16 10 12 13.6 16.3 17 21 23.1 28.5 24 29 32.5 39.3
3/8 20 23 27 31 35 42 48 57 45 54 61 73
7/16 30 35 41 47 54 64 73 87 70 85 95 115
1/2 45 52 61 70 80 96 108 130 110 125 149 170
9/16 65 75 88 102 110 125 149 170 160 175 217 237
5/8 95 105 129 142 150 175 203 237 220 245 298 332
3/4 150 185 203 251 270 300 366 407 380 425 515 576
7/8 160 200 217 271 400 450 542 610 600 660 814 895
1 250 300 339 406 580 680 786 922 900 990 1220 1342
1-1/8 800 175 1085 1193 1280 1440 1736 1953
1-1/4 1120 1240 1519 1681 1820 2000 2468 2712
1-3/8 1460 1635 1980 2217 2380 2720 3227 3688
1-1/2 1940 2180 2631 2956 3160 3560 4285 4827
*** Use minimum recommended torque value when threads are coated with a lubricant, such as engine oil,
or fasteners with phosphate and oil coatings. Use maximum recommended torque value for dry fasteners
or zinc plated fasteners without any lubricant.
Notes: 1. This specification is intended to be a general guideline for coarse threaded hardware in ferrous
materials (steel, cast-iron).
2. Thread engagements in non-ferrous materials (aluminum, brass, plastic, etc.) may not be
adequate to allow torque specified above.
3. Where a particular application gives specific torque values, use them in lieu of those given
above. Table i-2 -Wheel Lug Nut Torque Specifications
Steering Axle Drive Axle
1/2"-20 Thread 70-90 lb-ft (95-122 NCm) 5/8"-18 Thread 175-225 lb-ft (238-306 NCm)
9/16"-18 Thread 110-140 lb-ft (150-190 NCm) 3/4"-16 single cap nut 450-500 lb-ft (612-680 NCm)
5/8"-18 Thread 175-225 lb-ft (238-306 NCm) 3/4"-16 inner cap nut 450-500 lb-ft (612-680 NCm)
1-1/8"-16 outer cap nut 450-500 lb-ft (612-680 NCm)

Adjustments - Page 7-1
5000054 05/07
Adjustments
CABLE LENGTH
In order to account for differences in the length of certain tools it may be necessary to make adjustments to the
length of the cable.* Refer to Figure 7-1 and use the following procedure when adjusting the cable:
1. Move the auto-manual control valve handle forward to the manual/start position and set the parking brake.
2. Start the engine and raise the lead to the vertical position with the layback control. Move the lead all the
way to the right-hand side of the slide using the sideshift control.
3. Lower the tool to the ground or flat surface by pushing forward on the hammer control valve handle. Shut
the engine off.
4. Loosen the cable wedge at the hammer weight or at the base of the lift cylinder. (Refer to Figure 7-1)
5. Start the engine and use the hammer control valve handle to carefully extend the lift cylinder upward 10
inches (25 cm) above the bottom of the stroke. Shut the engine off.
6. Pull the slack out of the cable and resecure the wedge(s).
7. Restart the engine and use the hammer control valve handle to carefully extend the lift cylinder to its
maximum length. The weight should stop no closer than 6-10 inches (15 - 25 cm) from the stop blocks
located near the top of the lead. Readjust the cable, if necessary, to obtain the correct gap.
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.
* When the Arrow hammer is shipped from the factory, the cable length has been set for use with a short tool
such as a breaker or a scoring tool. If a longer tool is to be used, it may be necessary to shorten the cable setting
as described above. On mechanically adjusted units, the automatic trip fingers will not be in the proper
position in relationship to hammer stroke unless cable length is properly adjusted. The cable length must be
set long enough to enable the hammer to strike a full blow before starting the up stroke. Too long a cable will
result in a time lag between strokes. Minor changes in cable length can be accounted for without making
physical changes to the cable setting by adjusting the mechanical up and down limit trips on mechanically
actuated units. Machine equipped with electronic stroke control are self-compensating for minor changes in
cable length.
REPLACING THE CABLE
Inspect the cable daily. If the cable is badly worn, bent, kinked, or has broken wires or strands, it must be
replaced. The Arrow Hammer is equipped with either a one-piece cable or a cable spool. A one-piece cable
will require replacement whenever the cable is broken, damaged, or frayed. The cable spool, which holds 250
ft. (76 m) of spare cable, permits replacement of the broken or damaged section only.
Cable Spool - Refer to the following instructions and Figure 7-1.
NOTE: When carrying spare cable, Do not cut the cable between the cable spool and the lift cylinder. Cable
fraying usually starts near the end of the cable closest to the weight. Leaving the cable intact makes it possible
to feed only as much cable as needed to replace the damaged section. Using this procedure, insures the most
efficient use of the cable on the cable spool.

Page 7-2 - Adjustments
5000054 8/96
Figure 7-1
CABLE THREADING

Adjustments - Page 7-3
5000054 05/98
REPLACING THE CABLE - Cable Spool cont'd.
1. Lock the hammer weight (See Figure 5-3) and lay the lead back into the stowed transport position. Shut
the engine off and set the parking brake.
NOTE: If the cable has broken during operation, it will not be possible to raise and lock the hammer weight.
DO NOT attempt to lay the lead back with the hammer weight on the ground. Retract the lift cylinder
completely and temporarily re-attach the broken cable end to the hammer weight. Lift and lock the hammer
weight in place before proceeding.
2. Remove both cable wedges and the cable clamp. Remove the broken or damaged section of cable.
3. Loosen the cable spool nut and rethread the cable as needed (refer to Figure 7-1). Make sure the cable
is threaded inside the two retaining loops on the attachment bracket.
4. Thread the cable back through the hammer weight. Reinstall the cable wedge and cable clamp.
NOTE: When replacing a section of damaged cable, pull the cable through the hammer weight until the
damaged section is clear of the cable wedge when reinstalled. Cut and discard the damaged section.
5. Follow the procedure for adjusting the CABLE LENGTH to complete the installation. Be sure to retighten
the spool nut before resuming operation.
Short Cable - 51' (15.5 m) Minimum - Refer to the following instructions and Figure 7-1.
1. Lock the hammer weight (See Figure 5-3) and lay the lead back into the stowed transport position. Shut
the engine off and set the parking brake.
NOTE: If the cable has broken during operation, it will not be possible to raise and lock the hammer weight.
DO NOT attempt to lay the lead back with the hammer weight on the ground. Retract the lift cylinder
completely and temporarily re-attach the broken cable end to the hammer weight. Lift and lock the hammer
weight in place before proceeding.
2. Remove both cable wedges (Refer to Figure 7-1).
3. Remove the broken or damaged cable. Be sure to remove and retain the cable clamp.
4. Insert the end of the new cable at the base of the lift cylinder and reinstall the cable wedge (Refer to Figure
7-1).
5. Thread the cable through the sheaves in the lift cylinder as shown in Figure 7-1. Make sure that the cable
is threaded inside the two retaining loops on the attachment bracket (Refer to Figure 7-1).
6. Run the cable through the sheave at the top of the lead and back down to the weight.
7. Reinstall the cable wedge and the cable clamp at the hammer weight.
8. Follow the procedure for adjusting the CABLE LENGTH to complete the installation.
Refer to the "Specifications" section for proper cable specifications. Minimum length for the cable is 51 ft.
(15.5 m). Replacement part numbers: 4001024 - 51 ft. (15.5 m), 2000616 - 250 ft. (76 m)

Page 7-4 - Adjustments
5000054 05/07
Figure 7-2
CARRIAGE & CENTER PIN ADJUSTMENTS
5000054 05/07

Adjustments - Page 7-5
5000054 05/07
CROSS-SLIDE BEARING ADJUSTMENT
The carriage assembly is equipped with plastic slider bearings which operate in contact with the surfaces of
the sideshift ways. It will occasionally be necessary to adjust these bearings for wear. (Refer to Figure 7-2)
1. Using the layback control valve, raise the lead into a vertical position.
2. Using the sideshift control valve, move the carriage assembly to a position approximately 3 inches (8 cm)
from the extreme right hand end of its travel.
3. Loosen, but DO NOT REMOVE, the bolts that attach the lower bearing retainer to the carriage assembly.
(Refer to Figure 7-2)
Removal of the bottom guide will allow the lead and carriage assembly to tip off the
sideshift frame in any direction. Do not remove the bottom guide unless the top of
the lead has been properly secured such as to an overhead hoist or crane.
4. Loosen the jam nuts from the adjustment screws located at the bottom of the carriage assembly.
5. Turn the adjustment screws to obtain a running clearance of 0.005" to 0.020" (0.127 - 0.508 mm) at the
lower bearing. (Refer to Figure 7-2)
6. Retighten the jam nuts and the mounting bolts.
7. Clean the sideshift ways and apply fresh lubricant to the slide contact surfaces of the ways.
8. Check the sideshift mechanism for freedom of movement by shifting the mechanism from side to side.
9. Readjust to provide greater bearing clearance as required for freedom of movement.
CARRIAGE BEARING END PLAY
The center pivot bearing on the carriage assembly should be checked periodically for end play. To adjust the
end play, refer to Figure 7-2 and use the following procedure:
1. Lay the lead down onto the lead rest and shut the engine off.
2. Move the layback control valve lever both directions to relieve any cylinder pressure.
3. Using standard feeler gauges, check the end play between the thrust washer and the retaining ring at the
back of the carriage center pivot. (Refer to Figure 7-2)
4. The correct end play is 0.005" to 0.010" (0.127 - 0.254 mm).
5. Loosen the lock bolt on the retaining ring.
6. Turn the retaining ring clockwise to reduce the end play.
7. Retighten the lock bolt.

Page 7-6 - Adjustments
5000054 05/07
Figure 7-3
SIDESHIFT CHAIN ADJUSTMENT
SIDESHIFT CHAIN
To adjust the tension on the sideshift drive chain, refer to Figure 7-3 and the following procedures:
1. Using the layback control valve, raise the lead into an upright position.
2. Using the sideshift control valve, move the carriage until it is approximately 3 inches (8 cm) away
from the right hand travel limit.
3. Loosen the jam nuts on each of the two chain adjustment screws located at the rear of the carriage,
near the center pivot. (Refer to Figure 7-3)
4. Adjust both screws equally until the slack has been removed from the chain.
Do not over tighten the sideshift chain. Over tightening will lead to excess wear and
possible failure of he chain and chain drive components.
5. To check for proper chain tension, locate the approximate center of the chain span. Grasp two adjacent
strands of the chain between thumb and forefinger. It should be easy to deflect each chain approximately
1 inch (2.5 cm), but difficult to make the chains touch.
6. Retighten the nuts and the jam nuts on the chain tensioning screws.