1.) HOW HIGH DOES IT GO?
12 FEET ABOVE THE TRUCK FRAME FOR THE DOUBLE LEG HY-TOWER. 15 FEET ABOVE THE TRUCK FRAME FOR THE HY-TOWER (SL).

2.) HOW MUCH CLEARANCE?
6” OR MORE IS OPTIMUM. MUST HAVE MORE THAN 4 ½”

3.) HOW WIDE IS THE TARP?
100” WIDE (HY-TOWER – SL)

4.) HOW HARD IS IT TO PULL OUT?
APPROX 13 LBS – 50 LBS RESISTANCE FROM START TO FINISH

5.) HOW DO YOU INSTALL IT?
VERY SIMPLE! SHIPS IN PRE-ASSEMBLED PARTS (LOWER ASSEMBLY, HOUSING ASSEMBLY WITH TENSION AND TARP ALREADY SET, AND PUMP). BOLT ANGLES TO FRAME, WELD CHANNEL TO ANGLES, WELD LEGS INTO CHANNEL, ADD EXTRA BRACING, BOLT ON THE HOUSING, MOUNT THE PUMP AND HOOK IT UP TO THE BATTERY. THAT’S IT!!

6.) WHAT KIND OF PUMP IS IT?
SELF-CONTAINED , HYDRO-ELECTRIC PUMP, 12 VOLT

7.) WHERE DO YOU GET YOUR HYDRAULIC FLUID?
SELF-CONTAINED IN THE RESERVOIR.

8.) HOW DO YOU CHANGE OUT THE TARP?
CHANGING THE TARP ONLY TAKES A FEW MINUTES.

TO REMOVE THE OLD TARP, REMOVE THE PULL BAR FROM THE END POCKET AND ALLOW THE ROLLER TO ROTATE IN THE HOUSING TO UNWIND THE SPRING TENSION. PULL THE TARP ALL OF THE WAY OUT. WHILE ONE PERSON HOLDS THE ROLLER IN PLACE, THE OTHER SLIDES THE TARP OUT OF THE SPLINE GROOVE ON THE ROLLER. IT’S THAT EASY AND SAFE.

TO INSTALL THE NEW TARP, SLIDE THE SPLINE END OF THE TARP INTO THE SPLINE GROOVE OF THE ROLLER UNTIL THE TARP IS CENTERED ON THE ROLLER. (IMPORTANT SAFETY TIP: BEFORE PROCEEDING, ENSURE LOCK PAWL IS ENGAGED IN SPROCKET TEETH OF RATCHET TENSIONER LOCATED ON INSIDE WALL OF HOUSING END PLATE). USE A BREAKER BAR WITH A ¾” FITTING TO ROTATE THE SPRING SHAFT BY INSERTING THE FITTING INTO THE SQUARE OPENING ON THE OUTSIDE OF THE HOUSING ON THE DRIVER’S (US) SIDE OF THE TRUCK. ROTATE THE SHAFT 30 COMPLETE TURNS AND TEST YOUR SPRING TENSION. ADD MORE TURNS AS NECESSARY. YOU WANT TO MAKE SURE THERE IS PLENTY OF TENSION TO ROLL THE TARP IN COMPLETELY, BUT NOT SO MUCH THAT IT BECOMES TOO HARD TO PULL. FIND THE TENSION SETTING THAT IS BEST FOR YOU.

9.) WHAT IF MY DRIVER FORGETS TO PUT IT DOWN?
HY-TOWER COMES WITH A PROXIMITY ACTIVATED, WEATHER SEALED, INTERMITTEN FLASHING WARNING LIGHT TO ALERT THE DRIVER THAT THE TOWER IS RAISED.
10.) DOES DONOVAN PROVIDE THE GUSSETS OR BRACING PIECES?
NO. YOU CAN JUST USE SCRAP. EVERY TRUCK IS DIFFERENT.

11.) HOW DOES THE ALARM WORK?
PROXIMITY ACTIVATED. WHEN THE HY-TOWER RAISES APPROXIMATELY 2”, THE CIRCUIT CLOSES AND THE LIGHT FLASHES. WHEN THE TOWER IS DOWN THE CIRCUIT OPENS AND THE LIGHT STOPS FLASHING.

12.) WHAT IF THE ALARM GETS MUD ON IT?
THAT’S OK! ACTIVATOR DOES NOT WORK BY CONTACT. ITS PROXIMITY ACTIVATED. IT IS SEALED TOO, TO PREVENT DIRT OR WATER FROM GETTING INSIDE.

13.) WHAT ABOUT THE WEATHER?
TESTED ALL THE WAY DOWN TO –20 F NO PROBLEM. CAN SPEED UP MOVEMENT OF CYLINDER IN EXTREME COLD TEMPS BY REPLACING HYDRAULIC FLUID WITH KEROSENE OR 10 WEIGHT MOTOR OIL.

14.) WHAT ABOUT ICY PAVEMENT?
REDUCE TENSION FOR EASIER PULL. HY-TOWER HAS A 50’ PULL ROPE THAT ALLOWS THE DRIVER TO FIND SAFE FOOTING.

15.) WHAT ABOUT THE WIND?
OUR NEW LIGHTWEIGHT MESH TARP MAKES IT EASY TO OPERATE HY-TOWER EVEN ON WINDY DAYS. POINT CAB INTO THE WIND AND ALLOW WIND TO HELP YOU TARP CONTAINER. IF CONTAINER IS NOT FACING WIND, PICK UP THE CONTAINER AND THEN FACE TRUCK INTO THE WIND.

16) WHAT ABOUT HEAPED LOADS?
HY-TOWER ALLOWS YOU TO RAISE THE TARP OVER PEAKED LOADS. SOME OF OUR CUSTOMERS CARRY A HAND TARP, TOO. IF THEY PULL UP TO A 40 YARD CONTAINER THAT THEY KNOW IS HEAPED TOO HIGH, THEY HAND TARP IT AND MOVE ON.

17) WHAT IS THE WARRANTY ON THE HY-TOWER?
THERE IS A LIFETIME WARRANTY ON THE ROLLER BAR SPRING.
ONE YEAR WARRANTY ON THE CYLINDER AND PUMP.
90 DAY WARRANTY ON ALL OTHER MECHANISM COMPONENTS AND TARP.

18) HOW IS THE CYCLINDER RATED?
THE CYLINDER IS RATED AT 2000 LBS, BUT ONLY LIFTS ABOUT 300 LBS IN ONE DIRECTION. THERE IS VERY LITTLE LOAD ON THE CYLINDER AND PUMP.

19) HOW MANY GALLONS PER MINUTE IS HY-TOWER SET TO RUN OFF OF?
HY-TOWER IS SET TO RUN OFF OF ONE-GALLON PER MINUTE OF HYDRAULIC FLUID. THIS KEEPS THE TOWER FROM RISING OR LOWERING TOO SLOWLY OR TOO QUICKLY.

20) WHY SHOULDN’T YOU HAVE FLAPS ON YOUR HY-TOWER TARP? IS THERE AN
EXCEPTION TO THIS RULE?
NINETY NINE TIMES OUT OF ONE HUNDRED, FLAPS ARE NOT NECESSARY ON THE
HY-TOWER TARP AND ARE NOT RECOMMENDED. IF A CUSTOMER HAS A
GOOD REASON TO HAVE FLAPS ON THEIR TARP, WE CAN SUPPLY THEM WITH ONE.

1. WHAT KIND OF PUMP IS IT?
THE PUMP IS A SELF-CONTAINED, HYDRO-ELECTRIC PUMP, 12 VOLT OR 24 VOLT. THE PUMP MOUNTS TO BOTTOM (FIXED) STAGE OF THE BASE ASSEMBLY ON THE DRIVER’S SIDE OF THE TRUCK.

2. WHAT KIND OF HYDRAULIC FLUID IS USED IN THE HY-TOWER POWER PUMP?
THE RESERVOIR SHOULD BE FILLED WITH DEXTRON AUTOMATIC TRANSMISSION FLUID.

3. HOW MUCH HYDRAULIC FLUID DOES THE POWER PUMP HOLD?
APPROXIMATELY TWO GALLONS. THE POWER PUMP’S FLOW RATE IS APPROXIMATELY ONE-GALLON PER MINUTE OF HYDRAULIC FLUID.

4. WHAT DO I NEED TO DO IF THE POWER PUMP IS NOT OPERATING?
A) MAKE SURE THE TRUCK’S BATTERY SWITCH IS ON.
B) MAKE SURE THE POSITIVE AND NEGATIVE LEADS ARE ATTACHED PROPERLY. (SEE ATTACHED DIAGRAM)
C) IF PUMP HAS BEEN OPERATING PROPERLY, AND IS NOT NEW, CHECK THE SPRING AND CONTACTS ON UNDER SIDE OF PUMP SWITCH. (REMOVE THE CAP AT THE BOTTOM OF THE SWITCH). CHECK THE SPRING AND MAKE SURE THE SPRING IS NOT STUCK TO ONE OF THE CONTACTS. REMOVE ANY BLACK CARBON BUILD-UP ON CONTACTS.
D) MAKE SURE THERE IS ENOUGH HYDRAULIC FLUID IN THE RESERVOIR.

5. THE MOTOR IS NOISY.
THE BUSHING MAY NEED GREASE. TAKE OUT THE SCREWS ON TOP OF THE PUMP (SCREWS ARE ABOUT 6” LONG).
LIFT OFF BLACK LID (NOT ENTIRE BLACK COVER JUST LID). INSIDE THE LID IS A BRASS BUSHING. GREASE WITH WHEEL BEARING GREASE. PUT CAP BACK ON.

6. HYDRAULIC FLUID IS SHOOTING OUT THE BREATHER CAP.
A) MAKE SURE RESERVOIR HAS NOT BEEN OVERFILLED.
B) WHEN USING LEVER TO RAISE OR LOWER THE HY-TOWER, IF YOU DON’T PUSH THE LEVER ALL THE WAY OVER SO YOU CAN HEAR THE MOTOR TURN ON, THE HY-TOWER MAY LOWER BUT THE HYDRAULIC FLUID DOESN’T PASS THROUGH THE PUMP AND WITHOUT THE MOTOR ON IT FILLS THE RESERVOIR AND MAY OVERFLOW.
C) THE PUMP MAY BE WORN OUT AND NEED REPLACEMENT.

7. IS THERE A WARRANTY ON THE PUMP?
YES, THERE IS A ONE-YEAR WARRANTY ON THE POWER PUMP.