POSTMASTER/ SLAB BLASTER MODELS 8000 9000 Owner: Date Purchased: Model #: Manual #: DANGER Si no entiende ingles, se prefiere que busque a alguien que interprete las instrucciones para usted. Serial #: 9MPOST2454659 Operator’s Manual Danuser Machine Company, Inc. 500 East Third Street P.O. Box 368 Fulton, Missouri 65251 Phone: (573) 642-2246 Fax: (573) 642-2240 E-mail: sales@danuser.com Website: www.danuser.
Danuser Industrial Group Dear Owner/Operator, Thank you for purchasing this Danuser Postmaster/Slab Blaster. We appreciate your business. Your safety as an operator of our product is very important to us. Therefore, before you assemble, install, operate, maintain, service, remove, or move your Danuser Postmaster/ Slab Blaster, read and understand this manual thoroughly. If there is anything you do not understand, immediately contact your dealer, or contact our factory direct.
Foreword Please read this manual thoroughly! Before you assemble, install, operate, maintain, service, remove, or move your Danuser Postmaster/Slab Blaster, read this manual thoroughly. If there is anything you do not understand, immediately contact your dealer, or call our factory direct at (573) 642-2246. Powered equipment can be dangerous if not assembled, installed, operated, maintained, serviced, removed, or moved properly.
Safety w arning Working with unfamiliar equipment can lead to careless injuries. Read and understand this manual and the manual for your vehicle before assembling, installing, operating, maintaining, servicing, removing, or moving this Postmaster/Slab Blaster. If there is anything in this manual you do not understand, contact your dealer or Danuser Machine Company, Inc. The safe use of this attachment is strictly up to you, the operator.
Safety • Consult local utility companies to make certain there are no buried gas lines, electrical cables, etc., in the work area before beginning operation. (continued) • Do not drive posts near underground utility lines. • Stay away from power lines when transporting, raising, or operating the Postmaster/Slab Blaster. • Before you operate the attachment, check over pins and connections to be sure all are securely in place. Make sure Postmaster/Slab Blaster is securely latched to the vehicle.
Specifications Model 8000 Overall Length (A) 48" Overall Width (B) 24" Overall Height (C) Hammer Weight (POSTMASTER) Hammer Weight (SLAB BLASTER) Length of Stroke Max. Strokes Per Minute Hydraulic Requirements Posts (Wood/Steel) Model 9000 64" 90" 275 lbs. (700 lbs. max.) 400 lbs. (700 lbs. max.) 36" 56" 50 12 GPM 2000 PSI 3" - 8" • Round, square, or H-beam heads available for wood or steel posts, preventing post mushroom.
Hydraulic Requirements Filtration Requirements: • A filter of, at least, 25 micron filtration is required. A filter capable of 10 micron filtration is preferred. The majority of paper type filters are 25 microns or better. NOTE The life of the hydraulic motor is almost entirely dependent upon cleanliness of the oil. Instructions in your vehicle operator’s manual regarding filter and oil changes should be carefully followed.
Assembly & Installation Prepare the Vehicle Read and understand the manual for your vehicle before assembling or installing the Postmaster/Slab Blaster. The vehicle must be equipped with a universal quick attach hitch and auxiliary hydraulics. The use of the Postmaster/Slab Blaster may require the addition of counterweights to ensure the attachment does not exceed the rated capacity of your vehicle. DANGER Do not exceed the vehicle's rated operating load. If necessary, use sufficient counterweights.
Assembly & Installation (continued) CAUTION Always reinstall the transit bolt before transporting or shipping the Postmaster/Slab Blaster. This bolt prevents the hammer from sliding during transport or shipping. STEP 7: Ensure the safety catch is in place. The safety catch prevents the hammer from sliding out of the Postmaster/Slab Blaster. w arning Do not tilt or operate the Postmaster/Slab Blaster without the safety catch in place.
Assembly & Installation STEP 13: Start the vehicle. Running at full throttle, engage the auxiliary hydraulics. Note the direction of the chain rotation (visible from the operator’s seat). The chain should be rotating from the bottom to the top. If it is not, reverse the hydraulic hoses. (continued) w arning Keep hands and loose clothing clear of the chain drive assembly. Severe personal injury could occur.
Assembly & Installation (continued) STEP 17: After setting the flow control, turn off the auxiliary hydraulics. Slide the hammer back into the Postmaster/Slab Blaster. STEP 18: Slowly tilt the Postmaster/Slab Blaster back to a vertical position. STEP 19: Shut off the vehicle, and disconnect the hydraulic hoses. Route the hydraulic hoses through the quick attach plate hose holder, and reconnect the hydraulic hoses to the vehicle auxiliary hydraulics.
Operation (continued) STEP 4: After the second person has cleared the area, continue lowering the Postmaster onto the post approximately 24 inches. Gauge this measurement by noting when the post guide is approximately 6 inches above the first reinforcement plate.
Assembly & Installation (continued) w arning Personal protection equipment including hard hat, safety glasses, safety shoes, gloves, and ear plugs are recommended during assembly, installation, operation, maintenance, service, removal, or movement of the attachment. CAUTION Because of the weight of some components, and because some components are difficult to balance, two people are required for safe assembly and installation of this equipment.
Operation (continued) Picking up a post from the ground may require a few tries to get it perfect. We recommend attaching a 24 inch length of deck chain to the hook provided next to the bottom of the drive assembly. This will help the operator align the Grapple jaws with the head of the post, ensuring a perfect pick-up of the post every time. NOTE This guide chain may need to be adjusted up or down in length to compensate for the arc of the vehicle’s lift arms.
Operation (continued) STEP 11: Lower the Postmaster onto the post approximately 24 inches. Reposition the vehicle using the guide chain as a plum line. STEP 12: Turn on the auxiliary hydraulics in the forward position. This will open the jaws, swing the Grapple out of the way, and start the hammer.
Assembly & Installation (continued) STEP 4: Route the control portion of the wiring harness along the loader arm of the vehicle and into the cab, and secure the wiring with zip-ties. Mount the switch out of the way of other controls. NOTE Keep wiring a safe distance from hot components such as a heater or exhaust. STEP 5: Connect the remainder of the wiring harness to a 12 volt power supply. If necessary, consult your dealer.
Operation (continued) Removal & Storage STEP 3: The Slab Blaster can now be activated by turning the auxiliary hydraulics to the forward position. NOTE The Slab Blaster will break up approximately ten square feet of concrete per minute. The thickness (up to 9 inches) and the toughness of the concrete will affect your speed. Before storage, the Postmaster/Slab Blaster should be thoroughly cleaned, washing off all dirt and grime.
Troubleshooting PROBLEM POSSIBLE CAUSE Slow Speed a) Flow control setting too low b) Fittings or connections are too small or incompatible c) Line restrictions d) Dirty oil or oil filter SOLUTION Increase flow control setting. Replace with proper fittings. Clear lines. Change oil and oil filter according to vehicle manufacturer’s recommendation. e) Hydraulic pump worn See your dealer for repairs. or damaged Fast Speed a) Flow control setting too high Decrease flow control setting.
Maintenance DAILY CHECK FOR CLEAN HYDRAULIC OIL The majority of all hydraulic component failures are caused by contamination of the hydraulic oil. At all times, keep dirt and other contaminates from entering the hydraulic system during connecting and disconnecting the hydraulic system. Always use dust caps and plugs on all quick disconnects when not in use. CHECK ALL HYDRAULIC HOSE ASSEMBLIES Check for cracked or brittle hoses. Replace hoses immediately if cracked or brittle.
Service DANGER Never attempt repairs or adjustments while the equipment is in operation. w arning Personal protection equipment including hard hat, safety glasses, safety shoes, gloves, and ear plugs are recommended during assembly, installation, operation, maintenance, service, removal, or movement of the attachment. REPLACING THE DRIVE CHAIN STEP 1: Remove the safety catch pin from the top of the frame.
Service (continued) STEP 8: Position the new drive chain around the frame and sprockets, and install the pickup link. Drive pins through the pick-up link and chain, weld connector pin holes shut, and grind weld flush. Drive pin through pick-up link and chain. Weld connector pin holes shut. Grind welds flush. Pick-Up Link Drive Chain STEP 9: Slide the bearings back out and tighten the bolts. Measure the distance between the two shafts. This measurement must be the same on both sides.
Service (continued) STEP 5: With the Postmaster in a horizontal position, remove the head assembly. STEP 6: If you are changing the collar only, then remove the bolts securing the collar to the upper head assembly, and install the desired collar using the existing bolts. Reinstall the head assembly with the collar into the Postmaster.
Service (continued) CAUTION Do not tilt the Postmaster with the hydraulic hoses routed through the quick attach plate hose holder. Damage to the hydraulic hoses will occur. STEP 3: Raise the Postmaster in the air, and tilt it forward 90°. Watch for any obstructions or pinching of hydraulic hoses. STEP 4: Shut off the vehicle engine. STEP 5: With the Postmaster in a horizontal position, remove the head assembly. STEP 6: Start the vehicle, and slowly tilt the Postmaster back to a vertical position.
Service STEP 6: Start the vehicle, and slowly tilt the Slab Blaster back to a vertical position. (continued) STEP 7: Shut off the vehicle, and disconnect the hydraulic hoses. Route the hydraulic hoses through the quick attach plate hose holder, and reconnect the hydraulic hoses to the vehicle auxiliary hydraulics. STEP 8: Lift the Postmaster hammer, and install it in the Slab Blaster hammer location. STEP 9: Ensure the safety catch is in place.
Parts 3 2 Drive Assembly 1 4 11 2 9 8 1 10 13 5 12 14 15 7 6 16 5 5 19 18 17 5 19 18 REF. NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 PART NO.
Parts 1 10 2 3 4 = Safety Sign Location 5 6 7 4 8 4 3 9 11 12 19 23 20 4 26 22 13 14 15 16 21 18 17
Parts (continued) REF. NO. PART NO.
Parts 1 Hydraulics 2 4 5 3 6 8 7 10 9 REF. NO. PART NO. 1 2 3 4 5 6 7 8 9 10 11168 11169 11214 11170 11171 11172 11173 11215 11183 11184 28 DESCRIPTION Hose Assembly 1/2” x 30” Hose Assembly 1/2” x 24” 90° Elbow Tee Flow Control Valve Hose Assembly 1/2” x 80” Hydraulic Motor Straight Adapter Male Coupler Female Coupler QTY.
Parts Grapple Hydraulics 1 2 4 5 8 6 7 3 9 9 15 10 12 7 11 8 13 14 17 16 REF. NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 PART NO.
Parts 10 Grapple 11 1 9 3 2 8 1 2 4 6 7 12 5 14 13 4 15 16 18 17 20 21 6 5 30 19 29 27 23 22 24 26 30 25 28
Parts Grapple (continued) REF. NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 PART NO.
Parts Tilt 9 10 2 7 8 1 11 15 17 14 3 19 5 12 6 18 4 16 20 13 REF. NO. 32 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 PART NO. 11214 11173 11219 11220 11221 11222 11171 11215 11168 11169 11170 11223 11172 11224 11209 11225 11226 11227 11228 11229 DESCRIPTION 90° Elbow Hydraulic Motor 90° Elbow Cylinder 90° Elbow Diverter Valve Flow Control Valve Straight Adapter Hose Assembly .50" x 30" Hose Assembly .
Decals & Safety Signs PART NO. DIG13 Location: Unit, Left Side PART NO. DIG17 Location: Unit, Rear Shelf Location: Unit, Front PART NO. DIG5 Location: Unit, Right Side Tab PART NO. DIG16 Location: Unit, Rear Shelf PART NO. DIG18 Location: Unit, Front PART NO. DIG10 Location: Unit, Left Front PART NO. DIG14 Location: Unit, Left Side Model Number & Serial Number Location: Unit, Bottom Right w arning Clean or replace all safety signs if they cannot be clearly read and understood.
Warranty DANUSER LIMITED WARRANTY Model # Serial # Danuser Machine Company, Inc. (“Danuser”) warrants its products, under normal use and maintenance, to be free from defects in material and workmanship for periods specified below from the purchase date from an authorized Danuser Dealer. Start of the warranty period is determined by purchase date given on your returned WARRANTY REGISTRATION FORM. Proof of purchase may be required.
