Page 1
6650 (Gas/LPG) Sweeper Operator Manual North America / International 330910 Rev. 05 (03-2008) *330910* www.tennantco.com Home Find... Go To..
Page 2
Engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. Thermo- -Sentry, II- -Speed, Perma- -Filter, 1 Step, Duramer, Vario Sweeping Brush, and VCS are US registered trademarks of Tennant Company. Specifications and parts are subject to change without notice.
- - Set parking brake. - - Turn off machine and remove key. CAUTION: LPG engine will run for a few seconds after key is turned off. Apply parking brake before leaving machine. 6650 330910 (3- -08) Home Find... Go To..
Page 6
Keep area well ventilated. - - Use cardboard to locate leaking hydraulic fluid under pressure. - - Use TENNANT supplied or approved replacement parts. 7. When loading/unloading machine onto/off truck or trailer: - - Turn off machine.
Page 7
OF THE FRAME. HOPPER SUPPORT BAR LABEL - - LOCATED ON THE HOPPER SUPPORT BAR AND ON BOTH HOPPER LIFT ARMS. HOPPER LIFT ARMS LABEL - - LOCATED ON BOTH HOPPER LIFT ARMS. 354001 6650 330910 (3- -05) Home Find... Go To..
Page 8
SAFETY PRECAUTIONS 6650 330910 (2- -04) Home Find... Go To..
FOR SAFETY: When servicing machine, avoid contact with hot engine coolant. - Fill the fuel tank. FOR SAFETY: When servicing machine, keep flames and sparks away from fuel system service area. Keep area well ventilated. 6650 330910 (4- -03) Home Find... Go To..
Page 10
We recommend taking advantage of a regularly scheduled service contract from your TENNANT representative. - Order parts and supplies directly from your authorized TENNANT representative. Use the parts manual provided when ordering parts. 6650 330910 (4- -03) Home Find... Go To..
A. Steering Wheel B. Operator Seat C. Engine Cover D. Engine Side Door E. Main Brush Access Door F. Hopper Access Cover G. Side Brush H. Hopper Cover Instrument Panel J. Fuel Tank 6650 330910 (3- -07) Home Find... Go To..
Main Broom Stall Hopper Door Open Clogged Dust Filter Hopper Door Close Thermo Sentry Hopper Down Low Fuel Hopper Up Alternator Filter Shaker Hazard Light Side Brush Operating Lights Vacuum Fan Engine Speed 6650 330910 (3- -05) Home Find... Go To..
Page 13
OPERATION Side Brush Down Pressure Light Side Brush Down Pressure Heavy Windshield Wiper Slow Windshield Wiper Fast Dome Light Heater Cab Pressurizer Slow Cab Pressurizer Fast Check Engine 6650 330910 (2- -04) Home Find... Go To..
T. Directional Pedal U. Steering Wheel Tilt Lever V. Parking Brake Lever W. Fuses X. Horn Button Y. Main Brush Adjustment Knob Z. Check Engine Light (For machines serial number 010000 and above) 6650 330910 (6- -06) Home Find... Go To..
Reverse: Press the bottom of the directional pedal with the heel of your foot. Neutral: Take your foot off the directional pedal and it will return to the neutral position. 6650 330910 (4- -03) Home Find... Go To..
Set: Pull the parking brake lever up. FOR SAFETY: Before leaving or servicing machine; stop on level surface, set parking brake, turn off machine and remove key. Release: Push the parking brake lever down. 6650 330910 (4- -03) Home Find... Go To..
The main sweeping brush and side brushes will turn off, and raise to the up position. The vacuum fan will turn off and the filter shaker will activate for approximately 10 seconds. 6650 330910 (4- -03) Home Find... Go To..
Vacuum fan off: Press the vacuum fan switch. The indicator light will turn off and the engine speed will set to Low speed. NOTE: The shaker will automatically activate after the vacuum fan is turned off. 6650 330910 (4- -03) Home Find... Go To..
The hourmeter is displayed on the right side of the LCD display. The hourmeter records the number of hours the machine has been operated. Use this information to determine machine maintenance intervals. 02003 6650 330910 (4- -03) Home Find... Go To..
Close: Press the hopper close switch. The indicator light will illuminate, and the hopper door will close. NOTE: The hopper door will automatically close when the Thermo Sentry is activated. 6650 330910 (4- -03) Home Find... Go To..
The indicator light will illuminate while the switch is pressed. Release the switch when the hopper is all the way down in the lowered position. HORN BUTTON The horn button operates the horn. Sound: Press the button. 6650 330910 (4- -03) Home Find... Go To..
Secure adjustment knob: Turn the adjustment plate knob clockwise until the knob is hand tight and the plate cannot slide in the adjustment panel. 6650 330910 (4- -03) Home Find... Go To..
TURN SIGNAL SWITCH (OPTION) The turn signal switch operates the turn signals. Right: Push the switch lever forward. 06487 Left: Pull the switch lever back. 06488 Flashers: Pull out the knob. 06745 6650 330910 (4- -03) Home Find... Go To..
This can happen when an object is jammed in the main brush compartment, or when sweeping excessively heavy debris. Stop the machine, and remove the foreign object from the main brush compartment if necessary. 6650 330910 (3- -08) Home Find... Go To..
Stop sweeping with the machine, and return the machine to the service area. Replace the empty LPG fuel tank with a full tank. See the CHANGING THE LPG TANK section of the manual. 6650 330910 (3- -05) Home Find... Go To..
STEERING COLUMN TILT LEVER The steering column tilt lever controls the angle of the steering column. Adjust: Pull down on the tilt lever, move the column up or down, and release the tilt lever. 6650 330910 (3- -07) Home Find... Go To..
The check engine light comes on if the engine control system detects a fault during machine operation. If the check engine light comes on while operating the machine, contact a TENNANT service representative. 6650 330910 (3- -07) Home Find... Go To..
The side brush down pressure knob changes the side brush contact with the sweeping surface. Heavy: Turn the side brush down pressure knob counter-clockwise. Light: Turn the side brush down pressure knob clockwise. 6650 330910 (6- -06) Home Find... Go To..
(option) F-14 15 A Headlights, warning lights F-15 Open F-16 Open F-17 15 A Hydraulic solenoids F-18 Open F-19 15 A Vacuum fan light, filter shaker light F-20 15 A Hydraulic solenoids 6650 330910 (2- -04) Home Find... Go To..
The chart lists the circuit breakers and the electrical components they protect. Circuit Breaker Rating Circuit Protected CB-21 20 A Air conditioner (option) CB-22 20 A Air conditioner (option) 6650 330910 (2- -04) Home Find... Go To..
Tilt out Hydraulic Cooler: On machines serial number 010000 and above, lift up on the rear of the latch and release the front of the latch from the catch. 6650 330910 (2- -04) Home Find... Go To..
The front to back adjustment lever is located on the left hand side of the operator’s seat. Adjust: Pull the lever in, slide the seat forward or backwards to the desired position, and release the lever. 6650 330910 (4- -03) Home Find... Go To..
Page 33
The weight adjustment lever controls the firmness of the operator’s seat. Lift: Pull up on the operator seat mounting plate until the seat mount locks up. Lower: Pull on the release lever and lower the seat mounting plate. 6650 330910 (2- -04) Home Find... Go To..
The wiper can be operated at two speeds. Slow: Press the top of the switch. Fast: Press the bottom of the switch. Off: Return the switch to the middle position. 6650 330910 (4- -03) Home Find... Go To..
The pressurizer can be operated at two speeds. Slow: Press the top of the switch. Fast: Press the bottom of the switch. Off: Return the switch to the middle position. 6650 330910 (4- -03) Home Find... Go To..
- Check the condition of the hopper dust filter and seals. Clean as required. - Check the brakes and steering for proper operation. - Check the fuel level. - Check the service records to determine if maintenance is needed. 6650 330910 (4- -03) Home Find... Go To..
NOTE: If you cannot line up the centering pin, make sure you have the correct LPG fuel tank and then adjust the pin locator in or out. 7. Fasten the tank hold-down clamp to lock the tank in position. 6650 330910 (4- -03) Home Find... Go To..
9. Open the tank service valve slowly and check for leaks. Close the service valve immediately if an LPG leak is found, and tell the appropriate personnel. 6650 330910 (4- -03) Home Find... Go To..
WARNING: Engine emits toxic gases. Severe respiratory damage or asphyxiation can result. Provide adequate ventilation. Consult with your regulatory authorities for exposure limits. Keep engine properly tuned. 6650 330910 (3- -07) Home Find... Go To..
Page 40
OPERATION 5. Release the machine parking brake. 6. Select the medium engine speed with the engine speed switch. 7. Drive the machine to the area being swept. 07816 6650 330910 (4- -03) Home Find... Go To..
This brush is recommended for foundry sweeping where heat may melt synthetic bristles. This brush has good hopper loading ability, but is not recommended for dusty applications. 6650 330910 (4- -03) Home Find... Go To..
The engine speed will automatically increase to medium speed and the hopper door will open. The main sweeping brush and side brushes will lower and turn on and the vacuum fan will turn on. 6650 330910 (4- -03) Home Find... Go To..
2. Press the side brush switch to stop or restart the side brush any time while sweeping. 3. Adjust engine speed according to sweeping application. 4. Sweep as needed. STOP SWEEPING 1. Press the one step switch to stop sweeping. 6650 330910 (4- -03) Home Find... Go To..
NOTE: Be aware that the minimum ceiling height needed to high dump the hopper is 2745 mm (9 ft.). FOR SAFETY: When using machine, move machine with care when hopper is raised. 6650 330910 (4- -03) Home Find... Go To..
Page 45
Slowly back the machine away from the debris site or debris container. For Safety: When using machine, use care when reversing machine. 07999 6650 330910 (4- -03) Home Find... Go To..
STOP THE MACHINE 1. Stop sweeping. 2. Take your foot off the directional pedal. Step on the brake pedal. 3. Select the low (Idle) position with the engine speed switch. 6650 330910 (4- -03) Home Find... Go To..
Page 47
010000 and above, the engine will continue to operate for a few seconds after the ignition switch is turned off. 6. LPG powered machines: Close the LPG tank’s liquid service valve. 6650 330910 (3- -05) Home Find... Go To..
- Check the sweeping brush patterns for adjustment. - Check the brakes and steering for proper operation. - Check the fuel level - Check the service records to determine maintenance requirements. 6650 330910 (4- -03) Home Find... Go To..
3. Press and hold the hopper up switch to raise the hopper. Release the switch when the hopper is all the way up. 6650 330910 (4- -03) Home Find... Go To..
Page 50
5. Press and hold the the hopper down switch, until the hopper lift arm rests on the support bar. WARNING: Lift arm pinch point. Stay clear of hopper lift arms. 6. Shut the engine off. 6650 330910 (4- -03) Home Find... Go To..
2. Press and hold the hopper up switch to raise the hopper up, off the hopper support bar. 3. Put the support bar in its storage position. WARNING: Lift arm pinch point. Stay clear of hopper lift arms. 6650 330910 (4- -03) Home Find... Go To..
Drive the machine slowly on inclines. Use the brake pedal to control machine speed on descending inclines. The maximum rated incline is 6_. FOR SAFETY: When using machine, go slow on inclines and slippery surfaces. 6650 330910 (2- -04) Home Find... Go To..
4. Release the rubber strap(s) from the top edge of the vacuum hose. 5. On machines without a cab, lift the hose handle off the support hook and remove the hose end from the support hook. 6650 330910 (2- -04) Home Find... Go To..
Page 54
7. On machines without a cab, disconnect the rubber straps securing the solid section of vacuum hose to the machine. On machines with a cab, disconnect the rubber straps securing the vacuum hose handle to the machine. 6650 330910 (2- -04) Home Find... Go To..
Page 55
The engine speed will set to the high speed, and the hopper door will automatically close. 10. Vacuum the area as needed. WARNING: Accident may occur. Do not operate vacuum or blower wand while driving. 6650 330910 (2- -04) Home Find... Go To..
Page 56
12. Shut the engine off. 13. Remove the vacuum hose from the hopper connection and close the vacuum wand door. 14. Secure the vacuum wand and hose in place with the mounting clips and rubber strap(s). 6650 330910 (2- -04) Home Find... Go To..
2. Move the lever on the engine cover forward into the ON position to start airflow through the wand. 08144 3. Direct the wand into the area of debris. The operator can rest the wand on the side bracket. 08147 6650 330910 (4- -03) Home Find... Go To..
The valve controls the flow of hot coolant to the heater core. The amount of coolant that flows through the heater valve is controlled with the heater knob in the cab (option). 6650 330910 (4- -03) Home Find... Go To..
Hopper lip skirts worn or damaged Replace lip skirts Hopper door partially or Open the hopper door completely closed Wrong sweeping brush Contact TENNANT representative for recommendations Main brush in Down position Put main brush in Float position 6650 330910 (3- -05) Home Find... Go To..
Check for damage, clean or replace Radiator Clean core exterior Check coolant level Hydraulic fluid reservoir Check fluid level HYDO Rear tire Check pressure Main brush/hopper seals Check for damage or wear 6650 330910 (3- -07) Home Find... Go To..
Page 61
HYDO Tennant Company or approved hydraulic fluid . . . Water and permanent-type ethylene glycol anti-freeze, --34_ C (--30_ F) . . . Special lubricant, Lubriplate EMB grease (TENNANT part no. 01433--1) 6650 330910 (3- -07) Home Find... Go To..
The rear wheel support pivots the rear wheel. The support has two grease fittings for the bearings. The rear wheel support bearings must be lubricated every 200 hours of operation. Use Lubriplate EMB grease (TENNANT part no. 01433--1). 6650 330910 (6- -06) Home...
The hopper bearings must be lubricated after every 200 hours of operation. Use Lubriplate EMB grease (TENNANT part no. 01433--1). FRONT WHEEL BEARINGS Inspect the front wheel bearings for seal damage, and repack and adjust every 400 hours of operation.
HYDRAULIC FLUID The quality and condition of the hydraulic fluid play a very important role in how well the machine operates. TENNANT’s hydraulic fluid is specially selected to meet the needs of TENNANT machines. 6650 330910 (4- -03) Home Find... Go To..
MAINTENANCE TENNANT’s hydraulic fluids provide a longer life for the hydraulic components. There are two fluids available for different temperature ranges: TENNANT part no. Ambient Temperature 65869 above 7_ C (45_ F) 65870 below 7_ C (45_ F) The higher temperature fluid has a higher viscosity and should not be used at the lower temperatures.
Replace the hoses and clamps if the hoses are cracked, harden, or swollen. Flush the radiator and the cooling system every 800 hours of operation, using a dependable cleaning compound. 6650 330910 (3- -08) Home Find... Go To..
Empty the dust cap of any debris. 4. Gently pull the filter off the outlet tube and out of the housing. Avoid knocking the filter against the housing to reduce the amount of dust knocked off the filter. 6650 330910 (2- -07) Home Find... Go To..
Replace the filter element after every 800 hours of operation. FOR SAFETY: When servicing machine, keep flames and sparks away from fuel system service area. Keep area well ventilated. 6650 330910 (2- -07) Home Find... Go To..
Remove the sensor and drain the oil from the LPG electronic pressure regulator after every 100 hours of operation. FOR SAFETY: When servicing machine, keep flames and sparks away from fuel system service area. Keep area well ventilated. 6650 330910 (2- -07) Home Find... Go To..
Replace the timing belt on machines serial number 009999 and below after every 1000 hours of operation. Replace the timing belt on machines serial number 010000 and above after every 2000 hours of operation. 6650 330910 (2- -07) Home Find... Go To..
A static drag chain prevents the buildup of static electricity in the machine. The chain is attached to the machine by a rear main brush skirt retaining bolt. Make sure the chain is touching the floor at all times. 6650 330910 (4- -03) Home Find... Go To..
4. Lift the dust filter element assembly out from the hopper. 5. Cut the four cable ties that are holding the filter shaker plate to the element. 6650 330910 (4- -03) Home Find... Go To..
Page 74
Secure the filter shaker plate to the filter with four cable ties in the four corners of the filter shaker. 6650 330910 (4- -03) Home Find... Go To..
If there is a fire in the hopper, the Thermo Sentry stops the vacuum fan and cuts off the air flow. Reset the Thermo Sentry by pushing in its reset button. 6650 330910 (3- -05) Home Find... Go To..
Rotate the main brush end-for-end every 50 hours of operation for maximum brush life and best sweeping performance. Replace the main brush when the remaining bristles measure 50 mm (2.0 in) in length. 6650 330910 (4- -03) Home Find... Go To..
(2.0 to 2.5 in). 00582 9. To increase the width of the main brush pattern, loosen the main brush adjustment knob and slide the main brush adjustment plate forward 7 to 14 mm (0.25--0.50 in). 6650 330910 (4- -03) Home Find... Go To..
Page 79
C. Check the main brush pattern and readjust as necessary. Set the main brush adjustment knob to match the same color band as the brush idler plate. 6650 330910 (4- -03) Home Find... Go To..
50 mm (2 in) in length. You may change the side brush sooner if you are sweeping light litter, or wear the bristles shorter if you are sweeping heavy debris. 6650 330910 (4- -03) Home Find... Go To..
11. Adjust the side brush pattern with the side brush down pressure knob. SIDE BRUSH GUARD Rotate the side brush guard 90_ every 200 hours of operation. Replace the brush guard after all four sides have been used. 6650 330910 (4- -03) Home Find... Go To..
NOTE: The brush door skirts have slotted holes to allow for a ground clearance adjustment. The door must be closed for proper adjustment. NOTE: Rear tire pressure will affect skirt clearances. 6650 330910 (4- -03) Home Find... Go To..
BRUSH DOOR SEALS The brush door seals are located on both main brush doors and on corresponding portions of the main frame. Check the seals for wear or damage every 100 hours of operation. 6650 330910 (4- -03) Home Find... Go To..
The hopper door seals are located on the hopper door. They seal the hopper when the hopper door is closed. Check the seals for wear or damage every 100 hours of operation. 6650 330910 (4- -03) Home Find... Go To..
(option). It seals the vacuum wand opening when the vacuum wand (option) is not in use. Check the seal for wear or damage every 100 hours of operation. 6650 330910 (3- -05) Home Find... Go To..
Torque the rear wheel nuts in a star pattern twice to 142 to 157 Nm (105 to 115 ft. lb) after the first 50-hours of operation, and every 800 hours there after. 6650 330910 (4- -03) Home Find... Go To..
1. Position the rear of the machine at the loading edge of the truck or trailer. FOR SAFETY: Use truck or trailer that will support the weight of the machine. NOTE: Empty the hopper before transporting the machine. 6650 330910 (4- -03) Home Find... Go To..
Page 88
Do not drive the machine onto the truck or trailer unless the loading surface is horizontal AND is 380 mm (15 in) or less from the ground. 6650 330910 (4- -03) Home Find... Go To..
Page 89
Do not drive the machine off the truck or trailer unless the loading surface is horizontal AND 380 mm (15 in) or less from the ground. 6650 330910 (4- -03) Home Find... Go To..
Before storing the machine for an extended period of time, the machine needs to be prepped to lessen the chance of rust, sludge, and other undesirable deposits from forming. Contact TENNANT service personnel. 6650 330910 (4- -03) Home Find... Go To..
HYDRAULIC SYSTEM System Capacity Fluid Type Hydraulic reservoir 24.6 L (6.5 gal) TENNANT part no. 65869 -- above 7_ C (45_ F) TENNANT part no. 65870 -- below 7_ C (45_ F) Hydraulic total N/A L (N/A gal) BRAKING SYSTEM Type...
2360 mm (93 in) 1585 mm (62.5 in) TOP VIEW 2080 mm (82 in) 1470 mm (58 in) 1135 mm (44.75 in) 1560 mm (61.5 in) SIDE VIEW FRONT VIEW 354038 MACHINE DIMENSIONS 6650 330910 (6- -06) Home Find... Go To..
Need help?
Do you have a question about the 6650 and is the answer not in the manual?
Questions and answers