Instruction Manual
Page 4
... unit away from cigarette sparks, electrical arcing, exhaust gase s and hot engine components such as asbestos and lead in lead based paint. If the product is equipped with a sparkarresting muffler. ALWAYS use outdoors and far away from this instruction manual and the engine instruction manual for safety, operation and maintenance instructions. Forest Service land and may leak into your...
... unit away from cigarette sparks, electrical arcing, exhaust gase s and hot engine components such as asbestos and lead in lead based paint. If the product is equipped with a sparkarresting muffler. ALWAYS use outdoors and far away from this instruction manual and the engine instruction manual for safety, operation and maintenance instructions. Forest Service land and may leak into your...
Instruction Manual
Page 5
... the hands of ignition, such as garages, basements, storage sheds, which come into contact with the product when it is not directly from work area. • Unattended operation of 48" (1.22 m) from your compressor is operating. Avoid...brush, weeds or other combustible materials. • Improperly stored fuel could result in a clean, dry, well ventilated area a minimum of this product could lead to accidental ignition. To reduce the risk of operation. • The compressed air directly • Never use air obtained from any confined area. • Operate compressor...
... the hands of ignition, such as garages, basements, storage sheds, which come into contact with the product when it is not directly from work area. • Unattended operation of 48" (1.22 m) from your compressor is operating. Avoid...brush, weeds or other combustible materials. • Improperly stored fuel could result in a clean, dry, well ventilated area a minimum of this product could lead to accidental ignition. To reduce the risk of operation. • The compressed air directly • Never use air obtained from any confined area. • Operate compressor...
Instruction Manual
Page 6
... to chemicals • Work in an area with good WHAT CAN HAPPEN in a violent air tank explosion: 6 HOW TO PREVENT IT • Drain air tank daily or after each use with a new air tank or replace the entire compressor. • Never drill into, weld or make adjustments or parts substitutions to alter the factory set operating pressures. • Do not remove the stiffener bar...
... to chemicals • Work in an area with good WHAT CAN HAPPEN in a violent air tank explosion: 6 HOW TO PREVENT IT • Drain air tank daily or after each use with a new air tank or replace the entire compressor. • Never drill into, weld or make adjustments or parts substitutions to alter the factory set operating pressures. • Do not remove the stiffener bar...
Instruction Manual
Page 7
... the pressure rating of air tools, spray guns, air operated accessories, tires and other people or animals. • Always turn the compressor off and bleed pressure from the air hose and air tank before each use and while inflating tires; the body or at high speed, resulting in small increments and frequently use compressor to inflate small low pressure objects such as children's toys, footballs, basketballs, etc. • Use a tire pressure gauge to...
... the pressure rating of air tools, spray guns, air operated accessories, tires and other people or animals. • Always turn the compressor off and bleed pressure from the air hose and air tank before each use and while inflating tires; the body or at high speed, resulting in small increments and frequently use compressor to inflate small low pressure objects such as children's toys, footballs, basketballs, etc. • Use a tire pressure gauge to...
Instruction Manual
Page 8
Compressor will remain hot for several minutes after operation. WARNING: RISK FROM MOVING PARTS WHAT CAN HAPPEN HOW TO PREVENT IT • The engine can start accidentally if the flywheel is turned by hand or moved by pulling on the starter rope. • Always disconnect the spark plug and bleed pressure from the air tank before performing maintenance. • Moving...
Compressor will remain hot for several minutes after operation. WARNING: RISK FROM MOVING PARTS WHAT CAN HAPPEN HOW TO PREVENT IT • The engine can start accidentally if the flywheel is turned by hand or moved by pulling on the starter rope. • Always disconnect the spark plug and bleed pressure from the air tank before performing maintenance. • Moving...
Instruction Manual
Page 11
... the air pressure coming from the compressor to a 1/2" air hose for air tools and accessories. Additional regulator, gauge and quick connects sold separately. This pressure is controlled by relieving pressure from the system when the compressed air reaches a predetermined level. Turn knob clockwise to increase regulated pressure and counterclockwise to unlock. 2. The regulator outlet pressure must not be used for additional regulators for attaching and removing a 1/4" air hose...
... the air pressure coming from the compressor to a 1/2" air hose for air tools and accessories. Additional regulator, gauge and quick connects sold separately. This pressure is controlled by relieving pressure from the system when the compressed air reaches a predetermined level. Turn knob clockwise to increase regulated pressure and counterclockwise to unlock. 2. The regulator outlet pressure must not be used for additional regulators for attaching and removing a 1/4" air hose...
Instruction Manual
Page 12
... hose whip. 1. If the oil is low before start-up, the engine will not restart until air pressure in engine gets low while the air compressor is equipped with recommended oil, see engine's instruction manual supplied by engine manufacturer for correct procedure. Apply sealant tape to engine. Refuel outdoors preferably, or only in hand when installing or disconnecting to reset pressure. See Compressor Pump Oil under Maintenance...
... hose whip. 1. If the oil is low before start-up, the engine will not restart until air pressure in engine gets low while the air compressor is equipped with recommended oil, see engine's instruction manual supplied by engine manufacturer for correct procedure. Apply sealant tape to engine. Refuel outdoors preferably, or only in hand when installing or disconnecting to reset pressure. See Compressor Pump Oil under Maintenance...
Instruction Manual
Page 13
... the air compressor, do not provide adequate clearance, stability or support for longer intervals. Excessive moisture is subject to be lifted, or pushed up and down points (U) when transporting. Contact a DeWALT service center or call 1-888-895-4549 for information regarding acceptable noise levels in your area. Place engine fuel valve lever (O) in the oil, causing running parts to...
... the air compressor, do not provide adequate clearance, stability or support for longer intervals. Excessive moisture is subject to be lifted, or pushed up and down points (U) when transporting. Contact a DeWALT service center or call 1-888-895-4549 for information regarding acceptable noise levels in your area. Place engine fuel valve lever (O) in the oil, causing running parts to...
Instruction Manual
Page 14
... the compressor pump has been replaced. Ensure safety valve (I) is closed. 4. DeWALT is reached slowly lower rear of property damage. Check engine's oil and fuel level, see Checking Safety Valve under Preparation for safety, operation and maintenance instructions. 4. Visually inspect drive belt. Replace belt if frayed, cracked, or worn. Do not use , see Compressor Pump Oil under - Initial Set-up (Fig. 1) WARNING: Do not operate this instruction manual and the engine instruction manual for compressor failure...
... the compressor pump has been replaced. Ensure safety valve (I) is closed. 4. DeWALT is reached slowly lower rear of property damage. Check engine's oil and fuel level, see Checking Safety Valve under Preparation for safety, operation and maintenance instructions. 4. Visually inspect drive belt. Replace belt if frayed, cracked, or worn. Do not use , see Compressor Pump Oil under - Initial Set-up (Fig. 1) WARNING: Do not operate this instruction manual and the engine instruction manual for compressor failure...
Instruction Manual
Page 15
.... Run the air compressor for 30 minutes to assist with the manual lock unloader lever in the ON postion. 7. This will allow the starter grip to the closed . If the engine is hot, move the choke to lock. Rotate manual lock unloader lever to snap back. Compressed air will not operate with start , check the oil level and add oil as needed . Regulated pressure gauge should read...
.... Run the air compressor for 30 minutes to assist with the manual lock unloader lever in the ON postion. 7. This will allow the starter grip to the closed . If the engine is hot, move the choke to lock. Rotate manual lock unloader lever to snap back. Compressed air will not operate with start , check the oil level and add oil as needed . Regulated pressure gauge should read...
Instruction Manual
Page 16
Attach hose and accessory. WARNING: Risk of unsafe operation. Adjust regulator (F) to the desired settings. 7. USING THE H4X REMOTE HUB 1. Adjust the regulators (F) to desired setting. Remove the screws/nails holding the H4X remote hub. 10. Connect one end of a 1/2" air hose (Y) to the quick coupler (S) and the other end to "Shutdown" in Operating Instructions). 8. When done, turn air compressor off, and relieve all the air pressure from the tank (refer...
Attach hose and accessory. WARNING: Risk of unsafe operation. Adjust regulator (F) to the desired settings. 7. USING THE H4X REMOTE HUB 1. Adjust the regulators (F) to desired setting. Remove the screws/nails holding the H4X remote hub. 10. Connect one end of a 1/2" air hose (Y) to the quick coupler (S) and the other end to "Shutdown" in Operating Instructions). 8. When done, turn air compressor off, and relieve all the air pressure from the tank (refer...
Instruction Manual
Page 17
... Check safety valve Inspect air filter X X + Drain air tank X Check pump oil level X Change pump oil X**+ Oil leak inspection X Inspect drive belt X Check drive belt tension X Check pulley/flywheel alignment X Check for unusual noise/vibration X Check for air leaks X* Clean compressor exterior X Remove tank from service X++ Engine See engine instruction manual. * To check for air bubbles to pressure and after pressure cuts out, look for air leaks apply a solution of air tank rupture. 6. oil, filters...
... Check safety valve Inspect air filter X X + Drain air tank X Check pump oil level X Change pump oil X**+ Oil leak inspection X Inspect drive belt X Check drive belt tension X Check pulley/flywheel alignment X Check for unusual noise/vibration X Check for air leaks X* Clean compressor exterior X Remove tank from service X++ Engine See engine instruction manual. * To check for air bubbles to pressure and after pressure cuts out, look for air leaks apply a solution of air tank rupture. 6. oil, filters...
Instruction Manual
Page 18
... starting compressor, pull the ring on drain valve. Ensure engine ON/OFF switch (C) is loud when draining. Air tanks contain high pressure air. Use eye protection [ANSI Z87.1 (CAN/ CSA Z94.3)] when draining as air flow noise is in Fig. 2). NOTE: All compressed air systems generate condensate that the safety valve operates freely. Grasp black lever on the safety valve to filter base. Aftercooler, pump head, and surrounding parts...
... starting compressor, pull the ring on drain valve. Ensure engine ON/OFF switch (C) is loud when draining. Air tanks contain high pressure air. Use eye protection [ANSI Z87.1 (CAN/ CSA Z94.3)] when draining as air flow noise is in Fig. 2). NOTE: All compressed air systems generate condensate that the safety valve operates freely. Grasp black lever on the safety valve to filter base. Aftercooler, pump head, and surrounding parts...
Instruction Manual
Page 19
... head, and surrounding parts are very hot, do not touch (see the Hot Surfaces identified in the OFF Position. 2. A llow the unit to servicing. D isconnect spark plug wire. 4. tainer. 7. Replace oil fill plug (K) and tighten securely. 10. Slowly rotate lever to Fig. 4) WARNING: Hot surfaces. NOTE: Use synthetic blend non-detergent air compressor oil. R eplace the oil drain plug (L) and tighten securely 8. S lowly add compressor oil...
... head, and surrounding parts are very hot, do not touch (see the Hot Surfaces identified in the OFF Position. 2. A llow the unit to servicing. D isconnect spark plug wire. 4. tainer. 7. Replace oil fill plug (K) and tighten securely. 10. Slowly rotate lever to Fig. 4) WARNING: Hot surfaces. NOTE: Use synthetic blend non-detergent air compressor oil. R eplace the oil drain plug (L) and tighten securely 8. S lowly add compressor oil...
Instruction Manual
Page 20
... bracket bolt (Torque to engine. 5. ing stiffener bracket to 10-20 ft.- Replace belt guard. 20 Aftercooler, pump head, and surrounding parts are very hot, do not touch (see Adjusting Belt Tension under Maintenance. 7. Remove belt guard. 6. If adjustment is in Fig. 2). Loosen but do not remove four engine mounting nuts. 4. Use caution when rolling belt onto flywheel, fingers can get caught between the motor pulley and compressor flywheel causes...
... bracket bolt (Torque to engine. 5. ing stiffener bracket to 10-20 ft.- Replace belt guard. 20 Aftercooler, pump head, and surrounding parts are very hot, do not touch (see Adjusting Belt Tension under Maintenance. 7. Remove belt guard. 6. If adjustment is in Fig. 2). Loosen but do not remove four engine mounting nuts. 4. Use caution when rolling belt onto flywheel, fingers can get caught between the motor pulley and compressor flywheel causes...
Instruction Manual
Page 21
... spark plug wire. 4. Tighten the engine drive pulley setscrew. IMPORTANT: Even minor leaks can cause the air compressor to 145- 180 in .- ing. 5. Additional Service Disassembly or service of each other. 9. Drain air tank. 5. Retighten the engine drive pulley setscrew. Inspect Air Lines and Fittings for Leaks 1. English 9. Ensure engine START/RUN/OFF switch (C) is 21 If additional service is in premature breakdown or...
... spark plug wire. 4. Tighten the engine drive pulley setscrew. IMPORTANT: Even minor leaks can cause the air compressor to 145- 180 in .- ing. 5. Additional Service Disassembly or service of each other. 9. Drain air tank. 5. Retighten the engine drive pulley setscrew. Inspect Air Lines and Fittings for Leaks 1. English 9. Ensure engine START/RUN/OFF switch (C) is 21 If additional service is in premature breakdown or...
Instruction Manual
Page 22
Use only accessories rated equal to subsequent owners. Limited Warranty DEWALT Industrial Tools are available for use with your tool are warranted from your local dealer or authorized service center. Limited warranty on all service calls: Model Number Serial Number Date and Place of Purchase Repairs To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment should be hazardous. DEWALT will cover parts and labor to remedy substantial defects due to faulty materials...
Use only accessories rated equal to subsequent owners. Limited Warranty DEWALT Industrial Tools are available for use with your tool are warranted from your local dealer or authorized service center. Limited warranty on all service calls: Model Number Serial Number Date and Place of Purchase Repairs To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment should be hazardous. DEWALT will cover parts and labor to remedy substantial defects due to faulty materials...
Instruction Manual
Page 23
... the first year of ownership: Belts, sheaves, flywheels, check valves, pressure switches, air unloaders, throttle controls, electric motors, brushes, regulators, o-rings, pressure gauges, tubing, piping, fittings, fasteners, wheels, quick couplers, gaskets, seals, air filter housings, piston rings, connecting rods, and piston seals. • Labor, service calls, and travel charges, are specifically excluded from this warranty. Parts purchased separately: The warranty for the service center to gain access to...
... the first year of ownership: Belts, sheaves, flywheels, check valves, pressure switches, air unloaders, throttle controls, electric motors, brushes, regulators, o-rings, pressure gauges, tubing, piping, fittings, fasteners, wheels, quick couplers, gaskets, seals, air filter housings, piston rings, connecting rods, and piston seals. • Labor, service calls, and travel charges, are specifically excluded from this warranty. Parts purchased separately: The warranty for the service center to gain access to...
Instruction Manual
Page 26
... 11 12 Troubleshooting Codes POSSIBLE CAUSE POSSIBLE SOLUTION Unloader valve does not release pressure when Unloader valve must be heard escaping. Do not repair the leak. Contact a DeWALT factory air tank reaches blow-off engine, rotate manual lock unloader lever to operate accessory. Leaking seals Contact a DeWALT factory service center or a DeWALT authorized service center. Restricted air intake filter Clean or replace air intake filter. 26 Defective safety valve Operate safety valve manually by your air compressor, a larger compressor is...
... 11 12 Troubleshooting Codes POSSIBLE CAUSE POSSIBLE SOLUTION Unloader valve does not release pressure when Unloader valve must be heard escaping. Do not repair the leak. Contact a DeWALT factory air tank reaches blow-off engine, rotate manual lock unloader lever to operate accessory. Leaking seals Contact a DeWALT factory service center or a DeWALT authorized service center. Restricted air intake filter Clean or replace air intake filter. 26 Defective safety valve Operate safety valve manually by your air compressor, a larger compressor is...
Instruction Manual
Page 28
... to occur 25 Damaged regulator 26 Detergent type oil being used , adjust the regulator as instructed in Regulator under Maintenance. Contact a DeWALT factory service center or a DeWALT authorized service center. Add gasoline, see engine's instruction manual for some pressure drop to run at high throttle 50-75% of pressure drop when the accessory is being used in pump 27 Extremely light duty cycles 28 Piston rings damaged...
... to occur 25 Damaged regulator 26 Detergent type oil being used , adjust the regulator as instructed in Regulator under Maintenance. Contact a DeWALT factory service center or a DeWALT authorized service center. Add gasoline, see engine's instruction manual for some pressure drop to run at high throttle 50-75% of pressure drop when the accessory is being used in pump 27 Extremely light duty cycles 28 Piston rings damaged...