OSO 21

O P E R A T O R ’ S   M A N U A L  

Specifications 

  Mower Specifications 

o

  21” commercial, self-propelled drive system with mulching 

and bagging support 

o

  Blade – 21" Toro compatible blade  

o

  Front Wheels – Toro compatible 9” front wheels  

o

  Rear Wheels – 9"/10” wheels with built in self-propel 

motors 

  Technical Specifications 

o

  Mower 

  Battery – 48V, 38Ah, LifePO4  

  Motor – 60V, 1800W, Brushless DC  

  Hub wheels – 48V, 350W  

  Runtime – 2-3 hours  

o

  Charger  

  Voltage – 110V 15A/20A AC  

  Charge time – Overnight, 6 batteries with 15A or 10 

batteries with 20A  

  Cost/battery - 2KWh @ local electricity cost/KWh  

  Safety Features  

o

  Blade brake to quickly stop the blade in less than 2 

seconds after blade cutoff  

o

  Emergency Stop button in control panel to shut off blade  

o

  Blade start safety switch to prevent accidental blade start  

 

Summary of Contents for 21"

Page 1: ...21 Commercial Walk Behind Lawn Mower Operator s Manual...

Page 2: ...2 1 C O M M E R C I A L W A L K B E H I N D L A W N M O W E R Operator sManual Oso Electric Equipment LLC 8480 Esters Blvd Ste 100 Irving TX 75063 844 676 0123 support osoelectric com...

Page 3: ...3 Understanding the Warning Stickers 4 Setup Guide 5 Getting Started 5 General Safety Guidelines 7 Basic Operation 8 Tips for a Better Mowing Experience 12 Understanding the Indicator Lights 13 Proper...

Page 4: ...ium Iron Phosphate or LiFePo4 battery Batteries are charged using the supplied Oso Charging Station from a standard 110V plug Battery power is used to turn the cutting blade and rear self drive wheels...

Page 5: ...O P E R A T O R S M A N U A L 2 Overview...

Page 6: ...hnical Specifications o Mower Battery 48V 38Ah LifePO4 Motor 60V 1800W Brushless DC Hub wheels 48V 350W Runtime 2 3 hours o Charger Voltage 110V 15A 20A AC Charge time Overnight 6 batteries with 15A o...

Page 7: ...ver clean the mower or replace the blade without first disconnecting and removing the battery Read the Operator s Manual before using the mower Receive proper training and instruction before using the...

Page 8: ...n the Lawn Mower Ensure the battery is placed in the proper orientation and that it fits in the holder Connect the battery plug to the mower connector Ensure you hear an audible click 6 To turn On the...

Page 9: ...reen Blue or Purple in less than 15 seconds If the Status Lights do not turn On please contact Oso Customer Support or your Sales Representative d When finished please engage the Emergency Stop button...

Page 10: ...achine Do not put the mower on its side with the battery plugged in and installed on the mower Keep bystanders and children out of the operating area Do not allow children to operate the machine Allow...

Page 11: ...Next place the battery in the mower battery bay and plug it in to the mower toggle the main switch to the ON position and disengage the Emergency Stop button by slightly rotating it clockwise Wait for...

Page 12: ...ed with and without the self propel system engaged by properly controlling the control bar with one hand and pushing the start bar with the other Similarly the self propel system can be used without t...

Page 13: ...t least a 15A breaker a Warning Do not charge the batteries inside living or working areas Recommended areas include any covered area such as a garage or dedicated shop We do not recommend charging th...

Page 14: ...start charging Tip You can use the charger without having a battery in every charger bay d The charging status light for each bay will turn Red when charging and Green when charging has been completed...

Page 15: ...to grass cut quality to maintain optimal wheel speed Do not overload the grass bag for better performance Empty the grass bag frequently Always place the battery in the charger at the end of the day...

Page 16: ...Warning When the mower status light is red and the blade does not start after battery connect and disconnect please do not attempt starting the blade more than once without calling Oso customer suppor...

Page 17: ...ather resistant we do not recommend that you directly hose down the main housing and control panel with high pressure water Metal parts the blade and all wheels can be hosed down using a typical home...

Page 18: ...ilted not centered or broken discard immediately o Once a week lubricate the handle bar rotating pivot points with a silicone based lubricant Ensure control lever moves freely and that it returns to i...

Page 19: ...ace This will reset the self propel system from a high load safety stop 2 Unplug and plug the battery wait for at least 15 seconds Not Applicable Blade stops working Blade Physically Stuck Unplug and...

Page 20: ...be voided If you don t use appropriate caution before accessing grass chute or under the mower all warranties and injury claims will be voided If you don t read this manual prior to operating the mow...

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