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20 

TROUBLESHOOTING (continued) 

PROBLEM 

CAUSE 

SOLUTION 

Load is easing down slowly 

The brake on the winch need to 

be set when the load is at the de-

sired height 

When load is in position, crank 

winch handles forward a half turn 

towards the lift to set the brake. 

You have serviced the winch 
and now the brake does not 
work at all 

The brake ratchet or ratchet dog 

are not installed correctly 

Check the winch drawing in this 

manual and correct the 

installation problem 

The brake is over-engaged 

See illustration and instructions 

below 

The brake will not disengage 

See illustration and instructions 

below 

The idler gear is displaced 

Make sure that the idler rotates 
freely and the teeth on the idler 

gear are not worn 

Safety brake will not release 

Unit may not be in the vertical 

position 

Place unit in vertical position and 

wind mast sections up to full 

extension. 

Unit is vertical and brakes will 
not release 

Mast section or carriage is too 

close to mast stop and does not 

have enough clearance between 

mast stops for brakes to release 

Use release hook to manually 

disengage safety brakes 

Unit is being serviced or unit 
is not in vertical position 

Brakes will engage if unit is 

horizontal or tilted off center 

Use release hook to disengage 

brakes 

The winch is hard to crank 
down  

Содержание SUMNER 784760

Страница 1: ...nson Rd Houston TX 77088 p 281 999 6900 f 281 999 6966 CANADA 75 Saltsman Drive Unit 5 Cambridge Ontario N3H 4R7 p 519 653 5300 f 519 653 5305 NETHERLANDS Midden Engweg 21NL 3882TS Putten Netherlands...

Страница 2: ...ntenance Instructions 16 17 Maintenance Record 18 Troubleshooting 19 20 2 OWNER S RESPONSIBILITIES Throughout this publication the words WARNING CAUTION and IMPORTANT will be used to alert the user to...

Страница 3: ...und the winch drum 1 INSPECT THE EQUIPMENT If cable is kinked worn frayed damaged or has anything on it that would obstruct its rotation around the pulley wheels do not use the unit Use only Sumner Ma...

Страница 4: ...ENT continued Avoid horseplay around equipment and keep bystanders at a safe distance Do not allow children to operate this unit and always keep them out of work areas Operate from the proper position...

Страница 5: ...TEM UNLESS MAST ASSEMBLY IS IN THE LOWEST POSSIBLE POSITION TO ENGAGE THE CARRIAGE SAFETY LATCH Keep load at lowest possible position at all times 1 INSPECT THE EQUIPMENT continued 2 WORK AREA HAZARDS...

Страница 6: ...obstructed movement of the unit Never leave elevated load unattended Do not use unit to support ladders for climbing hoisting or people moving Do not use unit outside in thunder light ning or severe w...

Страница 7: ...ht lift upwards to a standing position while someone supports the unit from behind The unit is now ready to transport 3 Moving Lift in Work Area With Load Although it is best to move the unit to the j...

Страница 8: ...balanced Note load capacity at given centers below Make sure the stabilizer legs are in stalled and locked into position 4 Reversing the Forks Disengage 2 spring loaded pins Rotate fork assembly 180 d...

Страница 9: ...lower masts by turning winch crank counter clockwise Lock caster brakes when leaving unit unattended 6 Storing Forks Using two hands pull out on the two spring loaded rings located above the fork arms...

Страница 10: ...nt of the lift Insert each leg into its respective mount ing socket making sure that the locking plunger fully engages Using the leveling screws level the lift un til the bulls eye bubble level shows...

Страница 11: ...Hold Down from Safety Latch Loop on side of fork Operating Your Lift When operating the lift the Safety Latch can be looped onto itself for out of the way storage Resetting Safety Latch In the event...

Страница 12: ...t Pull the tool down and the brake will release It may be necessary to push the locked mast or Carriage up slightly while pulling down on the tool Once the brake is released maintain pressure on the t...

Страница 13: ...0 400 500 600 12 15 17 20 23 D istance frombackof fork in M axim um S afe Loa d LOAD CENTER 12in 15in 17in 20in 23in 30cm 38cm 43cm 51cm 58cm MAXIMUM CAPACITY 500lbs 400lbs 350lbs 300lbs 260lbs 227kg...

Страница 14: ...forks up 16 11 5 15 m Height forks down 15 11 4 85 m Height Boom 16 6 5 03 m Fork ground clearance 3 75 9 5 cm Fork load height 5 75 14 6 cm Load capacity 12 load center 500 lb 225 kg Lift weight 279...

Страница 15: ...15 Assembly Diagram Masts Carriage Assembly Leg Storage Rack Winch Assembly Handle Front Stabilizer Leg Mast Brace 8 inch wheels Fork Assembly Rear Stabilizer Leg Bubble Level Leveling Screw Base...

Страница 16: ...teeth for wear If there is no sign of visible wear brush teeth with 50 wt Motor oil 5 For proper brake adjustment see Troubleshooting section on page 20 Replacing the Cable 1 Lower the carriage to en...

Страница 17: ...ched to the lift 14 Check the safety brake operation Safety Brake Maintenance The safety brake will automatically engage when the unit is horizontal preventing disassembly of the mast sections When th...

Страница 18: ..._____________________________________________ Action Date _____________________________________________________________________ Action Date ____________________________________________________________...

Страница 19: ...r wheels are not rotating If wheels and mounting hardware are not damaged clean wheels and lubricate shoulder bolt If the wheels do not rotate freely replace roller wheel assembly Inspect mast section...

Страница 20: ...will not disengage See illustration and instructions below The idler gear is displaced Make sure that the idler rotates freely and the teeth on the idler gear are not worn Safety brake will not relea...

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