Roughneck 28481 Owner'S Manual Download Page 5

Page  4  of 9 

2. INSTALLATION PROCESS 

WARNING:

 To reduce the risk of serious injury, the pressure release procedure should be followed very 

carefully. Follow the 

PRESSURE RELIEF PROCEDURE

 in 

OPERATION INSTRUCTIONS

 section. 

WARNING:

  Make  sure  the  whole  system  is  clean  before  installing/replacing  a  new  control  valve.  No 

impurities or contaminants should enter the control valve.

 

Follow steps

 

 

 

to clean the oil supplying system before a new control valve is installed. (The system 

also needs cleaning when the oil in the system is polluted.) 

. Close the fluid shut-off valve at each dispensing point in the system. 

. Make sure the main fluid outlet valve at the pump is closed, the air pressure to the pump motor is lowered, 

and the air valve is open. Slowly open main fluid valve. 

. Place the hose end (with no control valve connected) into a container to drain waste oil. Secure the hose in 

the container so it will not come out during draining. 

. Slowly open the shut-off valve at the dispensing position. Drain out a sufficient amount of oil to ensure that 

the entire system is clean and close the valve. 

. If there are several dispensing points, you need to drain the oil at each point, one by one, starting with the 

furthest one from the pump, and ending with the nearest one to the pump. 

 

 

Fig. 2 Oil Control Valve

 

How to adjust the angle of the nozzle: 

Loosen the #4 swivel nut, turn the nozzle to the desired position, and 

tighten the nut. 

NOTE:

 Use oil resistant pipe sealant or Teflon

®

 Tape on all fitting threads. 

(1) Installing a new oil control valve 

①.

 When installing a new control valve, first apply appropriate thread sealant around the male thread of the oil 

supplying system, then connect the male thread into the female thread of the oil inlet of the control valve 
and attach them together. 

②.

 Turn on all check valves of oil system. 

③.

 Press the trigger to drain enough oil to make sure the oil system is completely cleaned. See 

“OPERATION 

INSTRUCTIONS

” section for the control valve operation. 

④.

 Repeat steps 

  to 

  for other oil control valves to be installed at each dispensing point in the system. 

NOTE: 

To ensure the meter accuracy, purge all air out from the fluid lines and control valve before using them. 

(2) Replacing oil control valve 

①.

 Disconnect and take the oil control valve off the system. 

②.

 Follow the steps

  to 

  in 

(1) Installing the new oil control valve

” section above. 

OPERATION INSTRUCTIONS 

WARNING: 

 

Never operate the meter with the plastic cover removed.

 The cover protects the meter from damage 

due to impact. Meters are sealed in the factory to keep moisture and dirt away.   

  Flush the lines before you install this equipment in the system to prevent line contamination or it can cause 

equipment malfunction or damaged. 

  To reduce the risk of a serious bodily injury, including fluid injection, never exceed the maximum working 

Summary of Contents for 28481

Page 1: ...TROL VALVE OWNER S MANUAL WARNING Read carefully and understand all INSTRUCTIONS before operating Failure to follow the safety rules and other basic safety precautions may result in serious personal injury Item 28481 ...

Page 2: ... range 7 1500 PSI Max operation temperature 140 Precision 0 5 Power source one 3 6V ER14250 battery GENERAL SAFETY REGULATIONS WARNING Read and understand all instructions WARNING The warnings cautions and instructions discussed in this instruction manual cannot cover all possible conditions or situations that could occur It must be understood by the operator that common sense and caution are fact...

Page 3: ...rking pressure of the lowest rated system component This equipment has a 1500 PSI maximum working pressure Make sure all applications comply with local state and national fire electrical and safety regulations Use fluids and solvents that are compatible with the equipment Refer to the Technical Data section of all equipment manuals Read the fluid and solvent manufacturer s warnings Do not move or ...

Page 4: ...lose the fluid shut off valve 4 as shown in Fig 1 2 Ground the hose and reel or console WARNING To reduce the risk of static sparking effectively ground all equipment Control valve Use proper grounding wire to connect it to the pump Always keep the metal part of the control valve connected with the grounding equipment Pump Follow the manufacturer s instructions for grounding Air and fluid hoses Ma...

Page 5: ...adjust the angle of the nozzle Loosen the 4 swivel nut turn the nozzle to the desired position and tighten the nut NOTE Use oil resistant pipe sealant or Teflon Tape on all fitting threads 1 Installing a new oil control valve When installing a new control valve first apply appropriate thread sealant around the male thread of the oil supplying system then connect the male thread into the female thr...

Page 6: ... master air valves and fluid drain valves in the system Leave the drain valve open until you are ready to pressurize the system 2 Clean the obstruction in the oil system when any of the following cases occurs Problem on control valve flexible hose rigid tube or manual auto tip Pressure cannot be relieved completely after above procedures are done It takes more than 5 seconds to relieve the pressur...

Page 7: ... Press the MENU key Keep it pressed until the digit flashes in Zone Then press the RESET key to choose the right digit from 0 to 9 Press the MENU key to go the next digit so that the Actual Value can be input Make sure the Actual Value is input correctly and then press the MENU key Keep it pressed until calibration is finished and the factor is saved The meter will then return to standby 5 OPERATI...

Page 8: ...ace if damaged If the problem remains contact your distributor for repair or replacement Valve leaks O rings or valve seat are worn or damaged Replace the o rings and or the valve seat If the problem remains contact your distributor for repair or replacement Leakage from meter O ring damaged 1 1 Take the meter off the dispense system 2 2 Take off the rubber protector part 3 4 and front label part ...

Page 9: ... valves to direct sunlight and avoid rain falling corrosive substance etc Storage Store the control valve in a dry place with good ventilation Do not expose it to excessive heat humidity or sunlight Never let it touch any corrosive substances Store it out of the reach of children DIAGRAMS AND PARTS LIST ...

Page 10: ... 1 O ring 1 3 19 Waterproof Protector 2 3 2 Meter Holder 1 3 20 Seal Washer 4 3 3 Meter Cover 1 3 21 Washer 4 3 4 Rubber Protector 1 4 Nozzle with Tip 1 Item No 4 Description Part No Description MH10001 Rigid Nozzle MH10002 Flexible Nozzle MH10001 Manual Tip MT10002 Auto Tip MT10003 Semi auto Tip Wear Parts Part No Description Qty 1 5 O ring 2 1 9 Seat 1 1 13 Filter 1 1 4 Trigger 1 3 1 O ring 1 3 ...

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