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Allied AS 342 Operator'S Manual Download Page 57

screws through the puller bar into the
tapped holes in the body.

6. Insert the jacking screws in the tapped

holes of the puller bar that are offset
from the bolt pattern. The jacking
screws should press against the upper
edge of the housing.

7. Tighten the jacking screws in an alter-

nating pattern to raise the Cylinder
Body evenly.

8. When the Cylinder Body has been loos-

ened and raised up by the jacking screws
pull it all the way out of the housing us-
ing the Lifting Eyebolt threaded into the
Puller Bar.

9. Replace damaged seals.

11.3.3 Reassembly

Refer to Figures 11-6 and 11-9.

1. Install seals in bottom of Cylinder Body.

2. Install new O-Ring and Back-Up Ring

inside Cylinder Housing.

3. Insert Cylinder Body into Cylinder

Housing.

4. Insert Control Valve into Cylinder Body.

5. Insert Piston into Control Valve and

Cylinder Body.

6. Install new seals where required on Pis-

ton Bushing.

7. Insert Piston Bushing.

8. Insert Plate Spacer, then Plate Spring.

9. Refer to Figure 11-9. Place Puller Bar

o v e r t h e C y l i n d e r H o u s i n g w i t h
unthreaded holes lined up over housing
bolt holes.

10. The screws that were used as jacking

screws are now used to press the inter-
nal housing components securely into
the housing. Tighten these tightening
screws in an alternating pattern to press
components in evenly.

11. Install Cylinder Head with eight Cylin-

der Head Bolts and Washers.

12. Fill nitrogen precharge chamber. Refer

to Section 11.2.9.

6-1-03

11-10

A

LLIED

Street Hammer

AS Series

Puller Bar

Tightening Screw

Tightening Screw

Holes without threads
over housing bolt holes

Figure 11-9. Installing Cylinder Housing Internal

Components

Summary of Contents for AS 342

Page 1: ...AS SERIES STREET HAMMERS Construction Products LLC OPERATOR S MANUAL Manual Part Number 002064 June 1 2003 MODELS AS 342 AS 352 AS 362 AS 370 AS 380 ...

Page 2: ...dded Dimension Chart and and Drawing 02 21 00 8 3 Added Remote Lube 05 12 00 Throughout Additional models General editting 01 19 01 Chp 7 Added skid steer procedures 01 19 01 Chp 8 Expanded lube procedure 10 16 01 Chp 4 Updated Specifications 05 15 02 Chp 4 Updated Specs and Dimensions 05 15 02 Chps 1 5 11 Updated Safety Warranty Info 06 01 03 4 1 4 2 11 4 Updated Specs Torque Table ...

Page 3: ... 1 5 1 Owner s Responsibilities 5 1 5 2 General Construction Safety 5 1 5 3 Federal State Local and OSHA Construction Guidelines and Regulations 5 1 5 4 General Safety Summary 5 1 5 4 1 CAUTIONS and WARNINGS 5 1 5 4 2 Initial Operating Precautions 5 2 5 4 3 Carrier Precautions 5 2 5 4 4 Personnel Precautions 5 2 5 4 5 Hydraulic Pressure Precautions 5 3 5 4 6 Nitrogen Gas Precautions 5 3 5 4 7 Hois...

Page 4: ...e Carrier 7 8 SECTION 8 0 DEMOLITION TOOL 8 1 8 1 Demolition Tool 8 1 8 2 Sharpening 8 1 8 3 Installing the Demolition Tool 8 1 8 4 Removing the Demolition Tool 8 2 8 5 Manually Lubricating the Demolition Tool 8 2 8 5 1 Allied AutoLube Automatic Lubrication System 8 4 SECTION 9 0 OPERATION 9 1 9 1 Operator Check List 9 1 9 2 Tools Required By Operator 9 1 9 3 Operating the Street Hammer 9 1 9 4 St...

Page 5: ...aulic Lines for Leaks Before Starting Work 11 2 11 2 2 Daily Checking for Cracks 11 2 11 2 3 Checking Wear to the Tool Bushing 11 2 11 2 4 Checking Impact Face of Piston for Wear 11 2 11 2 5 Checking Wear to the Retainer Pin 11 2 11 2 6 Checking Wear to the Demolition Tool 11 3 11 2 7 Check Tightness of Threaded Connections 11 4 11 2 8 Checking the Nitrogen Precharge Chamber 11 6 11 2 9 Refilling ...

Page 6: ...Page SECTION 12 0 LIFTING TRANSPORT 12 1 SECTION 13 0 STORAGE OF THE HAMMER 13 1 13 1 Storing Street Hammer on the Carrier 13 1 13 2 Short Term Street Hammer Storage off the Carrier 14 Days or Less 13 1 13 3 Long Term Street Hammer Storage off the Carrier More than 14 Days 13 1 ...

Page 7: ... Skid Steer Mounting Configuration 4 9 Figure 7 1 Attaching the Street Hammer to a Backhoe or Mini Excavator Figure 7 2 through 7 11 Attaching the Street Hammer to a Skid Steer 7 4 Figure 7 12 Street Hammer Ports 7 6 Figure 7 13 through 7 16 Connecting Hydraulic Lines 7 7 Figure 8 1 Installing the Demolition Tool 8 2 Figure 8 2 Lifting Demolition Tool 8 3 Figure 8 3 Keep Contact Pressure on Tool 8...

Page 8: ...l Street Hammer Nitrogen Precharge Chamber 11 6 Figure 11 5 Filling the Nitrogen Precharge Chamber 11 7 Figure 11 6 Cylinder Housing Internal Components 11 8 Figure 11 7 Cylinder Head Removal Figure 11 8 Removing Cylinder Body with Jacking Screws Figure 11 9 Installing Cylinder Housing Internal Components 11 10 Figure 12 1 Hammer Lift Point 12 1 ...

Page 9: ...6 1 03 1 1 ALLIED Street Hammer AS Series ...

Page 10: ...sistent with industry practices Allied takes no responsibility for the re sults of actions not recommended in this manual and specifically the results of Operation in non recommended applica tions Incorrect operation Improper maintenance Use of service parts not approved or sup plied by Allied These exclusions apply to damage to the Street Hammer associated equipment and injury to personnel 1 2 6 ...

Page 11: ...SECTION 2 0 OVERVIEW 6 1 03 2 1 ALLIED Street Hammer AS Series Cylinder Head Cylinder Housing Demolition Tool Figure 2 1 Typical Street Hammer Main Components ...

Page 12: ...n 4 1 Tech nical Specifications for specific carrier in formation The Allied Street Hammer is an impact hammer featuring high single blow energy and long stroke design In place of side plates the Allied design suspends the hammer s working body in a box enclosure This isolates the vibration forces allowing the hammer to work more efficiently and reduce vibration to the car rier 2 2 Description of ...

Page 13: ...rication fitting is located on the Cylinder Housing Refer to Section 8 5 for lubrication instructions Piston The piston reciprocates in the cylinder body transferring its energy to the de molition tool upon impact The upper end of the piston has an identification number which is explained in Figure 2 6 6 1 03 2 3 ALLIED Street Hammer AS Series Figure 2 4 Typical Cylinder Body and Control Valve Cyl...

Page 14: ...asing pressure on piston sur face f3 The upward piston movement causes a control valve not shown to shift posi tion This shift results in a high pressure above surface f2 When the pressure above surface f2 is high the piston is forced downward The nitrogen pressure against piston surface f3 also drives the piston downward with even greater force Just before tool impact the control valve shifts aga...

Page 15: ...Pressure in Nitrogen Precharge Chamber psi bar psi bar Note 1 233 16 1 270 18 6 259 17 9 300 20 5 237 16 3 275 19 0 Weight Backhoe Excavator Skid Steer 1 Pos Skid Steer 2 Pos lbs kg 265 120 600 272 580 263 XCS 360 163 700 318 710 322 535 243 835 379 880 399 Working Length Backhoe Excavator Skid Steer 1 Position Skid Steer 2 Position ins mm 51 4 1306 42 9 1090 46 0 1168 57 3 1455 N A 52 1 1323 56 7...

Page 16: ...5 Weight Backhoe Excavator Skid Steer 1 Position lbs kg 660 299 660 299 915 415 985 447 985 447 1370 621 approx Working Length Backhoe Excavator Skid Steer 1 Position ins mm 62 2 1579 62 2 1579 57 8 1468 68 0 1725 68 0 1725 64 3 1632 Demolition Tool Diameter Working Length Std in mm in mm Cross Cut 2 76 70 17 0 432 Cross Cut 3 15 80 18 0 457 Carrier Weight Class Backhoe Excavator Skid Steer 1000 l...

Page 17: ...Inches mm Decscription AS 342 XCS AS 352 XCS AS 362 BCS XCS A 53 4 1355 59 3 1506 58 8 1493 Hammer length B 10 7 271 10 7 271 13 0 330 Hammer width C 13 0 330 14 0 356 14 0 355 Tool length D 51 4 1306 57 3 1455 56 7 1440 Hammer working length stick pin to tool tip E 6 67 169 6 67 169 10 3 260 Mounting width F 16 4 416 16 4 416 19 0 482 Hammer depth G 9 00 229 9 00 229 14 0 356 Stick pin to link pi...

Page 18: ... Hammer width C 17 0 432 18 0 457 Tool length D 62 2 1579 68 0 1725 Hammer working length stick pin to tool tip E 10 3 262 10 3 260 Mounting width F 19 0 482 19 0 482 Hammer depth G 14 0 356 14 0 356 Stick pin to link pin length H 2 76 70 3 15 80 Tool diameter J 6 75 171 6 75 171 Bracket mounting height K 38 4 974 43 2 1097 Box height Note Dimensions are for XCS BCS Universal Mounting Brackets Dim...

Page 19: ...ED Street Hammer AS Series F B E C A D H G 15 35 390 0 84 21 6 30 160 3 15 80 3 10 79 13 38 340 12 50 317 0 98 25 J K Figure 4 1 Typical Street Hammer Dimension Drawing Shown with BCS Universal Mounting Configuration ...

Page 20: ...3 Street Hammer Dimensions SSU 2 Position Skid Steer Univeral 2 Position Letter Dimensions in Inches mm Decscription AS 342 SSU 2 Position AS 352 SSU 2 Position AS 362 SSU 2 Position A 50 2 1275 56 4 1432 55 6 1438 Hammer length B 48 5 1232 48 5 1232 48 5 1232 Hammer width C 12 0 305 14 0 355 14 0 355 Tool length D 46 0 1168 52 1 1323 49 8 1265 Hammer working length E 39o 39o 39o Hammer rotation a...

Page 21: ...6 1 03 4 7 ALLIED Street Hammer AS Series E O B G D A F C o Figure 4 2 Typical Street Hammer Dimension Drawing Shown with 2 Position Skid Steer Mounting Configuration ...

Page 22: ... Universal 1 Position Letter Dimensions in Inches mm Decscription AS 342 SSU 1 Position AS 352 SSU 1 Position AS 362 SSU 1 Position AS 370 SSU 1 Position AS 380 SSU 1 Position A 47 0 1200 53 5 1359 57 0 1448 62 3 1654 68 8 1746 Hammer length B 48 8 1240 48 8 1240 48 5 1232 48 5 1232 48 5 1232 Hammer width C 12 0 305 14 0 356 14 0 355 17 0 432 18 0 457 Tool length D 42 9 1090 N A 52 5 1334 57 8 146...

Page 23: ...6 1 03 4 9 ALLIED Street Hammer AS Series B F D A E C o Figure 4 3 Typical Street Hammer Dimension Drawing Shown with 1 Position Skid Steer Mounting Configuration ...

Page 24: ...ds of the U S Department of Labor For OSHA construction guidelines contact your local federal government office or write U S Government Printing Office Superintendent of Documents P O Bo 371954 Pittsburgh PA 15250 Ask for Construction Industry OSHA Standards 29 CFR 1926 1910 5 4 General Safety Summary The safe and effective use of any heavy con struction equipment depends upon proper installation ...

Page 25: ...r requirements listed in the Table 4 1 Technical Specifica tions To protect the operator from hot high pressure hydraulic fluid do not run any hydraulic lines through the operator s cab Follow the carrier manufacturer s guide lines regarding filtration of return fluid from the Street Hammer The carrier oil filter must be cleaned according to the Care and Maintenance Schedule To protect the operato...

Page 26: ...n the hammer box Keep hands clear of any bores or fittings when moving removing attaching or hoisting the Street Hammer 5 4 8 Maintenance Precautions Do not start maintenance on the Street Hammer until it has cooled The Street Hammer is heated during operation and some components become very hot WARNING Bodily injury and equipment damage could result if the Street Hammer falls After detaching it f...

Page 27: ... not designed or built for underwater use When work site temperatures are below mi nus 4oF 20oC followthe carrier manufac turer s low temperature operating instructions Refer to Section 9 13 Working in Low Outside Temperatures 6 1 03 5 4 ALLIED Street Hammer AS Series ...

Page 28: ...n derwater Typical surface applications are Clearance Work Light concrete and brick breaking curb and gutter sidewalk and driveway work Cutting asphalt Trenching Trench compaction sheet pipe and pile driving Trench rock excava tion in certain applications Mining Descaling in mines horizontal breaking in tunnels Demolition Concrete road and structural demolition Safety regulations for the hammer an...

Page 29: ...tion kits are recom mended if others are used they must satisfy the minimum requirements listed under Section 7 6 Attaching the Street Hammer Allied Installation Kits are designed for most carrier makes and models and con tain the parts required for the mechanical and hydraulic hookup 7 3 Mounting Brackets Several different mounting brackets are available for the Street Hammer top mounting bracket...

Page 30: ...G Keep hands away from bores and pin areas when attaching the Street Hammer Do not touch any parts when the boom is moving Never put fingers in bores to check align ment use drift pin WARNING Always wear safety glasses during attachment operation and re moval of the Street Hammer 7 2 6 1 03 ALLIED Street Hammer AS Series INSTALLATION KIT BULLETIN Allied s Attachment Boom Pin Flange Bushing Link St...

Page 31: ...Section 7 7 to connect hydraulic lines 7 6 2 Attaching the Street Hammer to a Mini Excavator NOTE The installation desribed is typical installation procedures may vary Consult carrier attachment installa tion instructions for specific details The hammer is attached to the Mini Execavator the same way it is at tached to the Backhoe Refer to Section 7 6 1 7 6 3 Attaching the Street Hammer to a Skid ...

Page 32: ...until the bottom of the mounting bracket is flush with bottom of the mounting cou pler WARNING In Step 6 make sure the mounting pins are through the holes in the bottom of the mounting bracket If pins are not fully engaged there is danger of hammer and bracket fall ing off the carrier This could result in equipment damage and personal injury Refer to Figure 7 5 6 Engage the skid steer attachment l...

Page 33: ...ot secure 9 The orientation of the hammer can be changed on the 2 Position Skid Steer bracket by pivoting the hammer in the bracket to help keep the hammer per pendicular to the work Refer to Figures 7 8 thru 7 11 On the skid steer 2 posi tion bracket 1 Remove the retainer pin closest to the top of the hammer 2 Pivot the hammer up or down in the mounting bracket 3 Insert the pin in the correspondi...

Page 34: ...when attached to hammer and carrier 7 7 Connecting the Street Hammer Hydraulic Lines Connect the hydraulic lines to the Street Hammer as follows 1 Clean dirt from connection areas 2 Unscrew the cap nuts from Street Ham mer ports P pressure and T tank re turn Refer to Figure 7 12 3 Wrap the cap nuts in clean plastic or cloth to protect them from dirt Place the cap nuts in the tool box for safekeep ...

Page 35: ...onnects from the valve to the skid steer 6 Connect the hydraulic lines as follows Hammers without a flow regulator valve Refer to Figures 7 13 and 7 15 a Connect the pressure hose to the hammer port marked P b Connect the return line to the port marked T c Connect the pressure and return lines to their corresponding carrier quick disconnects Hammers with a flow regulator valve Refer to Figures 7 1...

Page 36: ...T is the return or tank port b Connect the two pressure hoses and the two return hoses through the bulkhead connector Figure 7 16 c Connect the pressure and return lines to the carrier quick disconnect coupling or corresponding carrier lines Figure 7 15 7 8 Removing the Street Hammer from the Carrier WARNING All directions and signals must be agreed upon beforehand with the assistant Keep hands we...

Page 37: ...ool shall only be in stalled as instructed in the follow ing procedure A demolition tool incorrectly installed could be driven out of the cylinder housing with force possibly causing bodily injury or physical damage WARNING Always wear safety glasses and gloves when installing the demoli tion tool Clear the area of bystanders 1 Clean cylinder housing bore and upper half of tool 2 Liberally apply A...

Page 38: ...5 Refer to Section 13 0 for storage instruc tions 8 5 Manually Lubricating the Demolition Tool Refer to Figure 8 3 Allied Chisel Paste is recommended for lu brication If Allied Chisel Paste is unavail able a high quality petroleum based lubricating grease with molybdenum disulfide can be used WARNING Serious injury or death could result if the hammer falls from the carrier Make sure that all mount...

Page 39: ... or death could result if carrier is not properly secured and locked when performing any carrier or hammer maintenance Follow all safety instructions in cluded in carrier manual and the CIMA Safety Manual supplied with hammer 3 Block carrier wheels to ensure carrier stability 4 Shut off carrier and engage carrier in terlock Operator shall remain in cab WARNING DO NOT crawl between carrier and hamm...

Page 40: ...utomatic Lubrication System The Allied AutoLube Automatic Lubrica tion System is not used on the hammers covered in this manual 8 4 6 1 03 ALLIED Street Hammer AS Series Lube Fitting Figure 8 4 Lubricating the Demolition Tool ...

Page 41: ...able Remember to lubricate the demolition tool every two hours during operation 9 2 Tools Required By Operator No special tools are required but the fol lowing tools are recommended safety glasses gloves sledge hammer drift pin 3 4 inch drive socket wrench 3 4 inch square drive socket set grease gun open end wrenches caliper for checking tool wear 9 3 Operating the Street Hammer WARNING The precha...

Page 42: ...operation of the carrier is governed by the carrier manufac turer s safety regulations With contact pressure on the demolition tool the piston in the Street Hammer is driven up to its starting position and the hammer will begin cycling the tool up and down The stick hammer end of the vehicle may be raised a few inches approximately 12 centimeters from the ground so that the weight of the carrier i...

Page 43: ... the demoli tion tool Do not rock the hammer at angles greater than 5o or bending strain will occur damaging the demolition tool and the Street Hammer 9 8 Incorrect Use of the Hydraulic Hammer Carefully read through this section The following paragraphs describe functions that damage the Street Hammer or cause personal injury 9 8 1 Never Use as a Crowbar Refer to Figure 9 4 Using the Street Hammer...

Page 44: ...s This prac tice will damage the Street Ham mer 9 8 4 Never Lift Or Transport Loads With The Hammer Refer to Figure 9 7 9 9 Never Use In or Underwater WARNING Never use a Street Hammer under water The Street Hammer is not built for underwater use 9 10 Precharge Chamber The precharge chamber is located in the cylinder head above the piston and is filled with nitrogen As the piston moves to its uppe...

Page 45: ...ers for your particular fluid 9 11 2 Working Underwater WARNING Never use a Street Hammer under water The Street Hammer is not built for underwater use 9 12 Working In High Outside Temperatures Check the oil temperature frequently to ensure it does not exceed 176oF 80oC If higher temperatures are measured in the tank a heat exchanger must be installed Use only hydraulic oils with adequate vis cosi...

Page 46: ...cts not opening Repair or replace Operating pressure is too low Check and reset pressure if needed Fault in electrical circuit Check for power at solenoid Hammer runs slow Insufficient flow of oil Increase flow if possible Return oil pressure too high Find and repair restriction to return flow Nitrogen precharge is too high Check and reset pressure as needed Operating pressure is too low Check and...

Page 47: ...d repair or replace plugged heat exchanger Return line connected to valve bank Hammer return must bypass valve bank Hoses or fittings too small for in stallation Always use proper hose and fitting sizes Operating pressure too high Adjust as needed Operating temperature too high Excessive leakage through ham mer Damaged piston Piston or inner cylinder body were honed excessive clearance Ambient tem...

Page 48: ...for wear Check hammer box for wear Monthly Check piston impact surface for dents Check impact surface top of demolition tool for chips Check impact surface of tool bushing for cracks chips wear or looseness As Required Replace bent and damaged tubes Replace any damaged hose s Clean hydraulic oil filter 11 1 1 Warranty Protection Maintain written records of Street Ham mer maintenance service and re...

Page 49: ...specified dimension the tool bushing must be replaced 11 2 4 Checking Impact Face of Piston for Wear The impact face of the piston must be checked each time the demolition tool is changed or at least once a month After the demolition tool has been removed proceed as follows 1 Shine a light on the piston s impact sur face and check for dents or chipping 2 Do not operate the Street Hammer if dents o...

Page 50: ... tool must be replaced Burrs on the shank of the demolition tool and on the retainer pin must be smoothed off carefully A grinder may be used observ ing the following CAUTION CAUTION Do not allow the shank of the tool to get too hot if using a grinder to remove burrs 11 3 6 1 03 ALLIED Street Hammer AS Series D Figure 11 2 Check Wear To Demolition Tool Demolition Tool Minimum Allowable Outside Dia...

Page 51: ... Socket Wrench 13 mm 11 15 60o 1 30o 1 2 17mm 18 25 30o 1 2 30o 1 2 17mm 18 25 30o 1 2 30o 1 2 Fill Valve G 2 Weekly Open End Wrench Socket Wrench 22mm 5mm 95 130 15 20 22mm 5mm 95 130 15 20 22mm 5mm 95 130 15 20 Connections P T 3 Weekly Open End Wrench 22 mm 44 60 26mm 66 90 26mm 66 90 Lube Fitting 5 As Req d Open End Wrench 14 mm 15 20 14 mm 15 20 14 mm 15 20 Hammer Bracket 6 Weekly Socket Wrenc...

Page 52: ...umber of flats that correspond to the number of de grees to be tightened In each of the following steps tighten the tension bolts in a diagonal sequence as shown to the right Step 1 Tighten all bolts to specified torque Step 2 Tighten all bolts specified number of degrees Step 3 Tighten all bolts specified number of degrees 60 o 120o 180o Rotate thru 1 Flat 60 o Rotate thru 2 Flats 120o Rotate thr...

Page 53: ...ptable Pressures are given for temperatures at 70o F 21o C and 150o F 65o C 7 After pressure reading is obtained quickly remove test gauge nozzle from fill valve G The fill valve check will au tomatically close to seal 8 Replace fill plug in fill valve WARNING Before removing the complete fill valve G for repair the precharge chamber must be totally depressurized or injury could result CAUTION Use...

Page 54: ...or valve slowly allowing nitrogen into precharge chamber Pressure increase can be read on the pressure gauge 10 Allow approximately 15 seconds for gas chamber in Street Hammer to fill or under quiet conditions until the gas can no longer be heard entering the cylinder head 11 Close the nitrogen cylinder valve when the reference value has been reached Quickly remove fill nozzle from fill valve The ...

Page 55: ...l filter in the carrier as in structed 11 3 Checking Seals in Cylinder Housing and Body If the hammer is overheating or running slow the O ring inside the top of the cylin der housing between the body and housing may need to be replaced When the cylin der body is removed check all the seals for wear Refer to Figure 11 6 If the hammer is leaking at the bottom of the cylinder housing replace the sea...

Page 56: ... and Washers 11 3 2 Cylinder Body Removal Refer to Figures 11 6 and 11 8 1 Thread Lifting Eyebolt into top of Pis ton and pull Piston and Piston Bushing out of Cylinder Body Refer to Figure 11 6 2 Remove Plate Spring and Plate Spacer from inside the top of the Cylinder Housing 3 Remove the Control Valve from the bore in the inner cylinder body 4 Place puller bar over the top of the Cyl inder Housi...

Page 57: ... Body into Cylinder Housing 4 Insert Control Valve into Cylinder Body 5 Insert Piston into Control Valve and Cylinder Body 6 Install new seals where required on Pis ton Bushing 7 Insert Piston Bushing 8 Insert Plate Spacer then Plate Spring 9 Refer to Figure 11 9 Place Puller Bar over the Cylinder Housing with unthreaded holes lined up over housing bolt holes 10 The screws that were used as jackin...

Page 58: ...ing equipment See Figure 12 1 WARNING Do not lift the hammer by the mounting pins The hammer may shift and cause damage or personnel injury 5 Adequately stabilize and secure the hammer for transport If the hammer is transported while in stalled on the carrier 1 Remove all loose debris from hammer 2 Secure hoses to unit to avoid accidental damage 3 Inspect the mounting pins and hard ware for damage...

Page 59: ...in the nitrogen precharge chamber 3 Remove the hydraulic hoses CAUTION Several liters of oil will run out when threaded connections P and T are opened This oil must be col lected and disposed of correctly 4 Open threaded connections P and T 5 Using a rod or tube push the piston to its highest position 6 Block the piston with a rod or tube so it cannot return to the down or out posi tion 7 Fill the...

Page 60: ...d the hammer upside down The piston will slide to the top of the hammer CAUTION Secure the hammer so that it can not fall over 13 If outside cover hammer with a water proof tarp 13 2 6 1 03 ALLIED Street Hammer AS Series ...

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