General Pump Turbo 21 Boxjet User manual

GENERAL PUMP A member of the Interpump Group Turbo 21 Boxjet
SPECIFICATI NS
Pressure Washer Model PU1021 (Turbo 21 Boxjet with Multireg)
Maximum Volume 2.1 GPM
Maximum Pressure 1000 PSI
Single Phase Motor Power 1.5 HP
Motor Protector Current Thermal Overload
Motor Protection Grade ISO IP55
Maximum Inlet Temperature 140oF
Maximum Suction Depth 3.3 ft.
Hose ength 26 ft.
Cord ength 7 ft.
(35 ft. GFCI Cord U. . Approved)
Weight 42.8 lbs.
Oil Capacity 12 oz.
Oil Type General Pump Oil
#100214 (6-pack) or #100216 (24-pack)
Dimensions 14.2” x 9.7” x 9.4”
FEATURES
This lightweight, portable high-pressure
washer makes the toughest clean-up tasks
faster and easier. Weighing only 43 pounds, you
can take it virtually anywhere. Ideal for light
industrial applications and for home owners to
wash the car, the boat, the pool and patio. Use it
to clean rain gutters, driveways, lawn equipment
and recreational vehicles.
Each unit comes complete with a 26-foot
high-pressure hose, gun and lance with
variable spray nozzle (up to 45o), adjustable
pressure regulator and low-pressure soap
injection system.
Easy to carry - easy to use. Just remove the
travel plug, attach to a garden hose, and plug
into a standard 110V-15 amp circuit. Then you’re
ready to wash your troubles away.
Electric Pressure Washer

GENERAL PUMP A member of the Interpump Group Turbo 21 Boxjet
Installation and Operating Instructions
Electric Pressure Washer
1. Inlet
2. Outlet
3. Pressure Adjustment Knob
4. Pressure Indicator
5. On/Off switch
6. Chemical Regulator
7. Chemical Filterr
8. Oil Dipstick
9. Oil evel Indicator
10. Automatic Gun
11. Quick- ance
12. Multireg Nozzle
13. High Pressure Hose
THE MACHINE MUST BE P ACED IN A HORIZONTA POSITION, ON A EVE SURFACE.
Replace the red oil travel plug (1) with the
black and yellow dipstick (2).
Check that the oil in the sight glass is at
the halfway level.
Connection of high pressure line:
1. Connect one end of the high pressure hose to the gun (A) and the other to the outlet connection (B).
2. Assemble the lance by pushing the two halves together and then fix by turning the connector (C).
Connection to water supply:
1. The maximum temperature of the inlet water must not exceed 140oF.
2. Connect the water supply to the IN ET port by means of a reinforced hose (200 PSI) with internal diameter of no
less than 13 mm (1/2”).
3 Considering that the water flow decreases in accordance with the length of the hose, make sure that the quantity
of water reaching the machine is at least 2.7 GPM.

GENERAL PUMP A member of the Interpump Group Turbo 21 Boxjet
Electric Pressure Washer
Connection to electrical supply:
1. Make sure that the main voltage is the same as shown on the identification label on the machine.
2. Make sure that the plug complies with your local regulations, and that it is provided with ground connection.
3. The power outlet must be protected by a residual circuit breaker having a sensitivity of less than 30 amp.
4. Do not connect other appliances to the same outlet.
5. Insert the plug after making sure that the switch on the machine is in the OFF position.
WARNING: In case of power failure during operation, turn the machine FF for safety reasons.
Starting the machine:
1. Turn on the water.
2. Set the pressure to zero by turning the know counter-clickwise.
3. Switch on the unit.
4. Hold the gun in the open position for a few seconds to allow the air to excape from the hoses.
4. At this point adjust the machine to your pressure requirement and you are ready to begin.
CHECKING AND CHANGING THE IL
-The level of the oil must be checked periodically.
- The first important oil change must be carried out after the first 20 hours of work and successively every 150 hours.
- In any case we suggest an oil change at least once a year.
- Oil type: Series 100 GP-oil (30 wt. non-detergent)
- Capacity: 11 oz.
GENERAL PRECAUTI NS F R USE
1. Keep the machine out of the reach of children.
2. High pressure water jets are potentially dangerous if used incorrectly. In particular, the jet must not be directed
against persons or animals, electrical equipment or the machine itself.
D N T USE the machine when persons and/or animals are within the reach of the jet.
3. The user must operate the machine in safe conditions and situations avoiding any situations of potential danger to
himself or other persons. In particular the user will have to:
- Avoid operating in unstable balance conditions.
- Remember that the high pressure jet generates a recoil when the gun is opened. The force of this recoil is less
than 4.5 pound-force.
- Use adequate protective clothing.
- Wear protective goggles and anti-slip rubber shoes.
- Avoid contaminating the environment with polluting, toxic or harmful substances.
4. This machine is build in compliance with the requirements of the current safety regulations. The use of electrical
appliances involves the respect of some basic rules:
- Do not touch electrical parts or components.
- All operations of inspection, maintenance or repair must be made by qualified personnel only. A WAYS
disconnect the plug before proceeding to any of the above mentioned operations.
5. Do not pull power cord to unplug. Do not pull high pressure hose to move unit.
6. Before using the machine, inspect power cord to make sure it is not damaged. If it is damaged, have it replaced
by qualified personnel. Replace power cord only with a cable of the same type as the original, this can be
identified by the marking on the outer sleeve. Do not damage or effect risky repair on power cord.
7. Before using the machine, inspect high pressure hose to make sure it is not damaged. In case of replacement
make sure the new hose has at least the same specifications as the original. Technical specifications (maximum
working pressure, date of manufacture, name of manufacturer) must be marked on the outer sleeve of hose.

GENERAL PUMP A member of the Interpump Group Turbo 21 Boxjet
Electric Pressure Washer
GENERAL PRECAUTI NS F R USE (continued)
8. While the machine is running, do not cover it and do not place it in an enclosed space with insufficient ventilation.
9. Do not leave the machine running for more than 5 minutes with the gun closed. Should it run for a longer period,
the temperature of the recirculating water will increase rapidly and could risk damaging the pump and pump seals.
10. When the machine is not in use, lock gun trigger in safe position to prevent it from being opened by accident.
11. For the sake of safety use only approved spare parts and accessories.
H W T USE THE “R T TEK” ( R “MULTIREG”)
A) Selection of high or low
pressure by push-pull action.
The selection of the pressure
must be carried out with the gun
in closed position (1).
B) Adjustment from straight (4)
to fan (5) of water jet by simple
turning of the ROTOTEK.
H W T USE THE DETERGENT KIT
The unit can suck and mix detergents and other liquid chemicals
thanks to an automatic device incorporated in the unit itself, which
is remote-controlled by operating the Rototek. The unit is equipped
with a chemical suction kit (Fig A).
- Fit the brass connector into the chemical
control knob and filter into chemical
container (Fig. B).
- Select low pressure with the Rototek
(Fig. C)
- At this point the suction and mixing of the
chemical will start automatically.
- You can regulate the quantity of
chemicals by adjusting the chemical
control knob (Fig. D).
- When you wish to stop using chemicals in
order to clean or rinse, simply release the
gun trigger and adjust the Rototek to high
pressure.
- At this point the chemical injection
automatically stops.
- If you foresee not using the unit for a long
period of time, we suggest to clean the
chemical suction kit with clear water to
avoid chemical deposit build-up.
PRECAUTI NS IN THE
CASE F ST RING or
FREEZING
If the unit is to be stored in a place where there is risk of freezing, or it
is to remain unused for more than 3 months, we recommend placing
some anti-freeze solution into the pump (a normal anti-freeze as used
in your vehicle). If in doubt at low temperatures or any long length of
storage time, we suggest you turn the motor with the key provided
before starting, to release any possibilities of blockages from freezing
or a build-up of line scale deposits.
Taking these precautions before starting will avoid damage to the unit
Remember to remove the key before switching on.
CHECKING THE WATER FILTER
It is important
to check the
filter before
using the
machine.
Remember that a
well-cleaned
filter means
good performance
and long life for
your
machine.

GENERAL PUMP A member of the Interpump Group Turbo 21 Boxjet
Electric Pressure Washer
TR UBLESH TING
PR BLEM CAUSE S LUTI N
Pump running normally but Pump sucking air Check that hoses and fittings
pressure does not achieve are air tight
rated values
Valves worn or dirty Check, clean or replace
Unloader packing worn Check and replace
Nozzle incorrect or worn Check and replace
Worn piston packing Check and replace
Dirty filter Check and clean
Fluctuating pressure Valves worn or stuck Check, clean or replace
Pump sucking air Check that hoses and fittings
are air tight
Worn piston packing Check and replace
Dirty filter Check and clean
Pressure drops after Nozzle worn Check and replace
period of normal use Valves worn, dirty or stuck Check, clean or replace
Unloader packing worn Check, clean or replace
Worn piston packing Check and replace
Dirty filter Check and clean
Pump noisy Pump sucking air Check that hoses and fittings
are air tight
Valves dirty or worn Check, clean or replace
Worn bearings Check and replace if necessary
Water top hot Reduce temperature
Dirty filter Check and clean
Presence of water in oil High humidity in air Check and change oil twice as
often
Piston packing and oil seal worn Check and replace
Water dripping from Piston packing worn Check and replace
under pump The o-rings of piston guide or Check and replace
retainer worn
Oil dripping Oil seal worn Check and replace
The motor does not start The plug not well connected or Check plug, cable and switch
when switched on lack of power supply
When switching on the unit, The main voltage is insufficient, Check that the main power
the motor hums but does lower than the minimum required supply is adequate
not turn on
The pump is stuck or frozen Check by turning the motor
manually as described in
instructions (page 4)
Incorrect extension cord Check and replace
The motor stops Tripped thermal overload due Check that the main voltage
to overheating corresponds to the specifications:
F-122, F-124, X-220, X230, X240:
switch off the motor and let it cool
a few minutes
X117 & X161: wait a few minutes
before turning on the unit again

ITEM PART N . DESCRIPTI N QTY
1. 99157000 Screw, M5 x 16 6
2. 97596800 Indicator, Oil 1
3. 51230151 Cover 1
4. 91801400 Bearing, Needle 1
5. 92221600 Nut, M8, SS 3
6. 96700800 Washer, M8 3
7. 51040009 Piston, dia. 15mm 3
8. 90357200 O-ring,.208 x .070 3
9. 90502200 Ring, Back-up, 6.2x9x1.5 3
10. 96707000 Washer, M9 3
11. 51050056 Guide, Piston 3
12. 51210184 Cover, Gasket 1
13. 51160322 Cover, Crankcase 1
14. 99186700 Screw, M6 x 18 4
15. 51030022 Rod, Connecting 3
16. 51020435 Crankshaft 1
17. 97731000 Pin, Connecting Rod 3
18. 91487800 Key 1
19. 51240051 Handle 1
20. 99314400 Screw, M8 x 50 2
21. 99306900 Screw, M8 x 25 2
22. 96693800 Washer, M6, 4, Schnoor 20
23. 99189700 Screw, M6 x 25 4
24. 90383300 O-ring, .549 x .103 2
25. 51210051 Spacer, Oil Dipstick 1
26. 98209700 Oil Dipstick 1
27. 91832800 Bearing, Ball 1
28. 90063500 Circlip 1
29. 90163400 Ring, Oil Seal 1
30. 90409700 O-ring, 2.187 x .139 1
ITEM PART N . DESCRIPTI N QTY
31. 50211551 Spacer, Crankcase 1
32. 50150074 Cover, Crankcase 1
33. 99180700 Screw, M6 x 10 4
34. 90165200 Seal, Oil 1
36. 41340702 Rotor 1
37. 41328602 Housing 1
38. 98209300 Plug, 3/8-19 BSPP 1
39. 90079500 Ring, Dia. 52mm 1
40. 91832300 Bearing, Ball 1
41. 41070022 Cover, Rear Motor 1
42. 90385700 O-ring, .937 x .103 1
43. 41030051 Fan, Motor 1
44. 51230051 Cover, Motor 1
45. 90062800 Clip, Retainer 1
46. 99165800 Screw, M5 x 45 4
47. 41210465 Screw 4
48. 41210147 Gasket 1
49. 41212451 Cover, Switchplate 1
50. 93568800 Capacitor 1
51. 99170600 Screw 4
52. 90388600 O-ring, 1.799 x .103 1
53. 93503100 Switch 1
54. 10710801 Cable 1
55. 51230751 Caver 1
56. 99151500 Screw, M5 x 12 1
57. 96691300 Washer, M5.3x9x.6 1
58. 51200374 Rail, Mounting 1
59. 98192400 Plug 4
60. 93521000 Nut, Cable Fitting 1
ITEM PART N . DESCRIPTI N QTY
61. 96701400 Washer, M8.4, Schnorr 4
62. 99303700 Screw, M8 x 16 4
63. 51100051 Ring, Head 3
64. 90261800 Packing 3
65. 51080070 Retainer, Packing 3
66. 90360400 O-ring, .989 x .070 3
67. 90383500 O-ring, .593 x .103 3
68. 96221800 Plug, Valve, M24 6
69. 90384700 O-ring 6
70. 36200251 Guide, Valve 6
71. 94737600 Spring 6
72. 36200176 Plate, Valve 6
73. 36200366 Seat, Valve 6
74. 90384100 O-ring, .674 x .103 6
75. 36703201 Unit, Valve 6
76. 99194300 Screw, M6 x 40 6
77. 51120022 Manifold, Aluminum 1
51120041 Manifold, Brass 1
78. 98210000 Cap, 3/8-19 BSPP 2 .
79. 98204100 Cap, 1/4-14 BSPP 1
80. 90156500 Seal, Oil 3
81. 51200274 Rail, Mounting 1
82. 51010322 Crankcase 1
83 92192600 Nut, M4 2
84. 99130600 Screw, M4 x 16 2
85. 41211851 Holder, Cable 1
86. 99303900 Screw, M8 x 16 1
87. 41211951 Clamp 1
88. 41212051 Cover, Swichbox 1
89. 41212684 Gasket 1
Turbo 21 Boxjet
GENERAL PUMPA member of the Interpump Group
PARTS LIST
Electric Pressure Washer
REPAIR KITS
KIT NO. 1 83 84 85 86 87
ITEM NO’S
INC UDED
IN KIT
70, 71, 72,
73, 74, (75) 80 68, 69 63, 64, 65, 66, 67 65, 66, 67 63, 64, 66, 67
NUMBER OF
ASSY’S
IN KIT
6 3 6 1 3 3

GENERAL PUMP A member of the Interpump Group
GGEENNEERRAALL PPUUMMPP1174 Northland Dri e Mendota Heights, MN 55120 Ref 300320 Rev.E
10-07
Turbo 21 Boxjet
Electric Pressure Washer
QUICK LANCE
124
35
678910
ITEM PART N . DESCRIPTI N QTY
1. 18010698 Hand Grip 1
2. 10029551 Ring Nut 1
3. 18203389 Tube 1
4. 10029770 Male Coupling 1
5. 90382000 O-ring 1
6. 1002870 Female Coupling 1
7. 10029651 Coupler 1
8. 18010498 Hand Grip 1
9. 18203389 Tube 1
10. 10029451 Ring Nut 1
P10 Gun
ITEM PART N . DESCRIPTI N QTY
1. 18205802 Gun Body 1
2. 90384100 O-ring 1
3. 18205902 Valve Seat 1
4. 18207102 Rod 1
5. 94737800 Spring 1
6. 18204270 Guide Spring 1
7. 90356800 O-ring 2
8. 90500700 Anti-ext. Ring 1
9. 18205370 Shaft 1
10. 94730500 Spring 1
11. 18205051 atch 1
12. 94730300 Spring 1
13. 18204851 Trigger 1
14. 96684000 Washer 1
15. 92193500 Nut 1
16. 18205270 Spring Guide 1
17. 94741400 Spring 1
18. 98219200 Cap 1
19. 97615500 Pin 1
20. 95284000 Inlet Fitting 1
1
2
3
4 5 6 78 9 10
11
12 13
14
15
16
17
18
19
20
Z KR1 UNL ADER
ITEM PART N . DESCRIPTI N QTY
1. 36258351 Knob, Adjusting 1
2. 90383500 O-ring, .594 x 103 1
3. 36255670 Screw, Press. Adjust. 1
4. 90384700 O-ring, .797 x 103 1
5. 90358000 O-ring, .344 x .070 2
6. 36257402 Piston, Unloader 1
7. 90359800 O-ring, .801 x .070 1
8. 36255466 Seat, Valve 1
9. 90359600 O-ring, .739 x .070 1
10. 97480200 Ball, 9/32” 1
11. 36257270 Piston, .089 1
12. 90508000 Ring, Back-up 2
13. 94734400 Spring, .295 x1.575 1
14. 36255270 Support, Spring 1
15. 90358200 O-ring, .364 x .070 2
16. 90382000 O-ring, .369 x .103 1
17. 36256770 Fitting, Banjo 1
18. 98196600 Plug, Hex Head 1
19. 96710000 Washer, Flat 1
20. 36256870 Fitting, Banjo 1
21. 90382700 O-ring, .469 x .103 1
22. 99305400 Screw, Set 1
23. 99221800 Nut, Jam, M8 1
24. 94821700 Spring, Conical 1
25. 97478200 Ball, 7/32” 1
26. 90357200 O-ring, .208 x .070 1
ITEM PART N . DESCRIPTI N QTY
28. 90358500 O-ring, .426 x .070 1
29. 36256370 Seat, Valve 1
30. 36256251 Body, Chem Inj. 1
31. 94738300 Spring, .384 x .394 1
32. 36256470 Needle, Valve 1
33. 36356551 Knob, Adjusting 1
34. 90357000 O-ring, .176 x .070 2
35. 36256670 Hose Barb 1
36. 36258241 Body, Valve 1
41. 36258470 Nipple, Inlet, 1/2 NPT 1
42. 90359100 O-ring, .551 x .070 1
43. 10031870 Nipple, Outlet, 3/8 NPT 1
44. 90383200 O-ring, .549 x .103 1
45. 10030751 Nozzle, .071 1
46. 90382200 O-ring, .391 x .103 1
47. 90383900 O-ring, .625 x .103 1
48. 90383300 O-ring, .549 x .103 1
49. 92259200 Nut, Jam, M14 1
50. 36258070 Screw, Adjusting 1
51. 94733800 Spring, .283 x .709 1
52. 36257970 Piston, Gauge 1
53. 90500700 Ring, Back-up 1
54. 90356800 O-ring, .145 x .070 1
55. 94871800 Clip, Spring 1
56. 36257751 Cover, Gauge 1
57. 36257851 Needle, Gauge 1
58. 36258801 Face, Gauge 1
Phone: [phone] FAX: [phone] e-mail: [email protected] www.generalpump.com
REPAIR KITS
KIT N . 94 95
ITEM N ’S INCLUDED IN KIT 5, 15, 24, 25, 26
28, 31, 34, 44, 46
2, 4, 5, 7, 8, 9, 10, 11, 12, 13, 15,
16, 21, 42, 47, 48, 53, 54
NUMBER F ASSY’S IN KIT 1 1