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CORE BORE
PARTS LIST & OPERATOR'S
MANUAL
CB21-XL
POWER UNIT
JULY 2020
Rev.:
20-01
Part #:
1801397

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Table of Contents
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Summary of Contents for Diamond Products CORE BORE CB21-XL

  • Page 1 CORE BORE PARTS LIST & OPERATOR’S MANUAL CB21-XL POWER UNIT JULY 2020 Rev.: 20-01 Part #: 1801397...
  • Page 2 Proposition 65 State of California Warning ! Engine exhaust and some its constituents are known to the State of California to cause cancer, birth defects, and/or other reproductive harm. Notification of Spark Arrester Requirement for State of California It is a violation of Section 4442 or 4443 to use or operate the engine on any forest-covered, brush-covered, or grass-covered land unless the engine is equipped with a spark arrester, as defined in Section 4442, maintained in effective working order or the engine...
  • Page 3: Table Of Contents

    Table of Contents Description Page No. CB21 Top Level Assembly ..............4 Hydraulic Schematic ................10 Hose Kit ....................11 Fuel Line Routing .................. 12 Fuel Tank Assembly ................13 Fuel Solenoid with Connector ............. 14 Fuel Solenoid Fuel Line ................ 15 Electric Schematic ................
  • Page 4: Cb21 Top Level Assembly

    4646190 CB21XL HYDRAULIC POWER SUPPLY ENGINE IGNITION CIRCUIT TO STOP SWITCH.
  • Page 5: Description

    4646190 CB21XL HYDRAULIC POWER SUPPLY PART PART ITEM QTY. DESCRIPTION ITEM QTY. DESCRIPTION Elbow, 1" O-Ring to 1" M. 4646156 CB-XL Frame Assembly 3200297 2400643 Wheel, 12 x 2-5/8 x 3/4" 4646011 Heat Shield 2400615 Set Collar, 3/4" 2900024 Lock Washer, 1/4" Split 2501767 Rubber Bumper Cap Screw, Hex Hd., 1/4-...
  • Page 6 4646190 CB21XL POWER SUPPLY...
  • Page 7 4646190 CB21XL HYDRAULIC POWER SUPPLY PART PART ITEM QTY. DESCRIPTION ITEM QTY. DESCRIPTION Elbow, 1" O-Ring to 1" M. 4646156 CB-XL Frame Assembly 3200297 2400643 Wheel, 12 x 2-5/8 x 3/4" 4646011 Heat Shield 2400615 Set Collar, 3/4" 2900024 Lock Washer, 1/4" Split 2501767 Rubber Bumper Cap Screw, Hex Hd., 1/4-...
  • Page 8 4646190 CB21XL POWER SUPPLY GROUND TO ENGINE GAS TANK VENT TO VACUUM PORT 4x TO ENGINE 4x TO ENGINE...
  • Page 9 4646190 CB21XL HYDRAULIC POWER SUPPLY PART PART ITEM QTY. DESCRIPTION ITEM QTY. DESCRIPTION Elbow, 1" O-Ring to 1" M. 4646156 CB-XL Frame Assembly 3200297 2400643 Wheel, 12 x 2-5/8 x 3/4" 4646011 Heat Shield 2400615 Set Collar, 3/4" 2900024 Lock Washer, 1/4" Split 2501767 Rubber Bumper Cap Screw, Hex Hd., 1/4-...
  • Page 11: Hose Kit

    4646165 CB21XL & 24XL HOSE KIT 26.24 31.8 19.25 23.6 16.6 ITEM PART NO. QTY. DESCRIPTION 4646124 Hose Assembly, 1" X 26-1/4" 3202317 Fitting, 1" FJIC to 1" Hose Barb 3205619 Crimp Shell, #16 6040063 Hose Assembly, 1/2"X 31.8" 3200290 Fitting, 1/2"...
  • Page 12: Fuel Line Routing

    4646190 CB21 XL FUEL SYSTEM VENT HOSE VENT LINE ROUTING...
  • Page 13: Fuel Tank Assembly

    4600203 GAS TANK ASSEMBLY ITEM PART NO. QTY. DESCRIPTION 6010869 Fuel Tank, 4.4 Gallon 2506716 Grommet 2502484 Roll Over Vent, 1/4" Hose Barb 2503294 Fuel Tank Cap, W/Gage 3200418 Adapter, 1/4" M. Pipe to 1/4" M. JIC 3200108 Ball Valve, 1/4" NPT 3200012 Street Elbow, 1/4"...
  • Page 14: Fuel Solenoid With Connector

    Fuel Solenoid with Connector, #4646241 DISCHARGE SIDE TO FUEL FILTER INLET SIDE FROM FUEL TANK ITEM PART NO. QTY. DESCRIPTION 4600174 Fuel Solenoid Valve 3200057 Elbow, 1/4" M. Pipe to 1/4" M. JIC 3200418 Adapter, 1/4" M. Pipe to 1/4" M. JIC 2808060 Deutsch Receptacle 2 Way 2801486...
  • Page 15: Fuel Solenoid Fuel Line

    CB21XL Solenoid Valve Assembly, #4646244 To Fuel Filter To Fuel Tank Cutoff Valve ITEM PART NO. QTY. DESCRIPTION 4646238 Solenoid Mounting Bracket 4646241 Fuel Solenoid with Connector 2900612 Cap Screw, Flat Hd., 5/16-18 x 7/8" 2900022 Flat Washer, 5/16" SAE 2900039 Lock Nut, 5/16-18 Nylon 2900138...
  • Page 16: Electric Schematic

    4646190 CB21XL ELECTRIC SCHEMATIC STOP SWITCH 4645036 STOP SWITCH TO MATING CONNECTORS AT IGNITION SWITCH 4646016 GROUND TO ENGINE ENGINE MOUNTING BOLT 4646015 BATTERY TO COIL FOR EASE OF ASSEMBLY, ATTACH WIRES TO STOP SWITCH BEFORE INSTALLING IN PANEL.
  • Page 17 NOTES ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________...
  • Page 18: Hydraulic Tank Assembly

    4646173 HYDRAULIC TANK ASSEMBLY...
  • Page 19 4646173 HYDRAULIC TANK ASSEMBLY ITEM PART NO. QTY. DESCRIPTION 4640120 Hydraulic Tank Weldment 3200409 Street Elbow, 1" NPT 3200427 Nipple, 1" NPT x 4", Schedule 40 3200289 Elbow, 1" M. Pipe to 1" M. JIC 3200288 Plug, 1" NPT 3200431 NIpple, 1"MPT - 3/4"...
  • Page 20: Front Panel Assembly

    4646189 CB21 XL PANEL ASSEMBLY...
  • Page 21 4646189 CB21 XL PANEL ASSEMBLY ITEM PART NO. QTY. DESCRIPTION 4646141 Instrument Panel 2900022 Flat Washer, 5/16" SAE 2900031 Lock Washer, 5/16" Split 2900138 Cap Screw, Hex Hd., 5/16-18 x 1" 4646102 Manifold, SAE O-Ring 4646101 Manifold, 3/4 NPT 2900009 Flat Washer, 1/4"...
  • Page 22: Oil To Air Cooler Option

    4400267 AIR TO OIL COOLER OPTION, CB21XL & CB24XL (CANNOT BE USED IN CONJUNCTION WITH OPTIONAL TOOL TRAY #4400261) GROUND STUD TO HEAT EXCHANGER FILTER...
  • Page 23 4400267 AIR TO OIL COOLER OPTION, CB21XL & CB24XL (CANNOT BE USED IN CONJUNCTION WITH OPTIONAL TOOL TRAY #4400261) 1) ATTACH WIRES TO RELAY BEFORE BOLTING TO PANEL. 2) REMOVE ORIGINAL HOSE FROM HEAT EXCHANGER TO FILTER. BLACK STOP 3) REPLACE ELBOW AT LOWER HEAT EXCHANGER PORT W/ 3200265.
  • Page 24: Tool Tray Option

    4400261 TOOL TRAY OPTION, GAS UNITS (CANNOT BE USED IN CONJUNCTION WITH OPTIONAL AIR TO OIL COOLER) ITEM PART NO. QTY. DESCRIPTION 4400207 Tool Tray 4600083 Tube, 1" Sq. x 23-3/4" 4641097 Heat Shield 4600167 Heat Shield Mat, 6x22" 2900022 Flat Washer, 5/16"...
  • Page 25: Reference Views

    FLOW RELIEF  CONTROL  CARTRIDGE  EMERGENCY STOP QUICK  DISCONNECTS  WATER  CONNECTIONS       GAGE, OIL  OPTIONAL  FILTER  RADIATOR KIT  KEY START  GAS LINE VALVE,  CHOKE &  BELOW TANK THROTTLE ...
  • Page 26: General Safety Precautions

    GENERAL SAFETY PRECAUTIONS WARNING: Do not operate power unit without reading this entire manual and the engine operation manual first. Keep manuals with power unit at all times for reference. This manual describes the operating procedures, care, maintenance, adjustments, and safety precautions for proper use of this machine.
  • Page 27  Always wear appropriate safety equipment such as goggles, ear protection, head protection and safety shoes. Certain tools used in conjunction with the power unit may require other safety equipment such as breathing filters.  Keep clear of hot engine exhaust. ...
  • Page 28: Description & Specifications

    DESCRIPTION AND SPECIFICATIONS Pump: Gear, pump rotation is clockwise (motor is CCW). Maximum GPM: 14.1 GPM (53.2L/M) at no load. Flow will decrease as pressure increases. Hydraulic Fluid Tank Capacity: 11 gallons (41.6Liters) Hose Couplings: Bruning quick disconnect, 3/4 inch & ½ inch Relief Pressure: Factory set at 2600 PSI /179.3 Bar (at valve outlet port).
  • Page 29: Operating Instructions

    HOSES: Large diameters and short Gas Engine: Make sure that the engine lengths are preferred and offer the highest crankcase is filled with oil to the proper system efficiency. If one is operating 50 ft level! Refer to your engine manual for oil (15.2M) from the power source, there is checking and changing procedures, along also a 50 ft (15.2M) return for a 100 ft...
  • Page 30: Heating Cold Oil

    Equipment when off. It is best to set the flow control to supplied by Diamond Products will be zero or shut the power unit down to avoid capable of being connected correctly and heating and conserve energy.
  • Page 31: Maintenance And Troubleshooting

    MAINTENANCE  Gas Engine Oil: Change engine oil and INSTRUCTIONS filter and perform other routine maintenance as recommended in the engine operation manual.  Oil Filter: change the filter when indicated by the gage at the filter.  Inspect hoses, couplings, and fittings daily for leaks, tighten as required.
  • Page 32: Flow & Pressure Ratings, Cb Power Packs

    CB POWER PACK FLOW AND PRESSURE RATING   CB POWER PACK  MAXIMUM NO  RELIEF  MODEL  LOAD FLOW    SETTING  GPM/LPM  PSI/BAR  15 Electric  12.75 / 48.2 2100 / 145  18 Briggs Vanguard 11.6 / 43.9 2850 / 196.5   20 Electric  14.9 / 56.4 2400 / 165.5  21 Honda  14.1 / 53.2 2600 / 179.3  30 Electric  20.4 / 77.2 2300 / 158.6  35 Briggs Vanguard 17.2 / 65.1 3000 / 206.9    Maximum no load flow is based on pump and motor manufacturer’s  specifications for pump displacement and no load RPM.  Relief is set to insure gas  engines cannot reach their stall torque and electric motors will not exceed the  recommended current limit.     ...
  • Page 33 NOTES ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________...
  • Page 34 NOTES ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________...
  • Page 36: Warranty

    (1) year from the date of shipment to Customer. The responsibility of Diamond Products under this Warranty is limited to replacement or repair of defective parts at Diamond Products’ Elyria, Ohio...

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