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4.

  SAFETY INSTRUCTIONS

• Pay attention to the operating instructions and keep them close to the battery. 
• Work on batteries must only be carried out by skilled personnel!

• Use protective glasses and wear safety clothing when working on batteries.
• Adhere to the current accident prevention rules in the country where the battery is used.

• No smoking!
• Do not expose batteries to naked flames, glowing embers or sparks, as it may cause the battery 

to explode.

• Avoid sparks from cables or electrical apparatus as well as electrostatic discharges.
• Acid splashes into the eyes or on the skin must be washed immediately with an abundance of 

clean water. After abundant flushing consult a doctor immediately!

• Clothing contaminated by acid should be washed in water.

• Electrolyte is highly corrosive.
• In the normal operation of this battery, contact with acid isn’t possible. If the cell containers 

are damaged, the immobilised electrolyte (absorbed in the separator) is corrosive like liquid 
electrolyte.

• Batteries and monoblocs are heavy.
• Use suitable transportation/lifting equipment.

• Risk of explosion and fire.
• Avoid short circuits: do not use non-insulated tools, do not place or drop metal objects on top of 

the battery. Remove rings, watches and articles of clothing with metal parts that might come into 
contact with the battery terminals.

• Avoid short circuits: Hawker TPPL batteries are capable of high short circuit currents.
• Caution - metal parts of the battery are always live: do not place tools or other objects on the 

battery!

• Pay attention to the hazards that can be caused by batteries.

5

Summary of Contents for HAWKER 9250-0083

Page 1: ...AEROSPACE Sealed Lead Acid Batteries Aircraft Battery Maintenance Manual UK Sealed Lead Acid Batteries Aircraft Battery Maintenance Manual UK...

Page 2: ...TANT Please read this manual immediately on receipt of the battery ies before unpacking and installing Failure to comply with these instructions will render any warranties null and void to the extent...

Page 3: ...SPECTION 9 8 2 VOLTAGE CHECKS 9 9 CHARGING PROCEDURE 10 10 ROUTINE MAINTENANCE 10 11 SERVICE PERIOD 11 12 CAPACITY TEST 11 13 REJECTION PROCEDURE 12 14 DEEP DISCHARGE RECOVERY 12 15 UNSCHEDULED REMOVA...

Page 4: ...id distilled water or alkali to the battery The Hawker 24 volt aircraft battery covered by this maintenance manual consist of two 12 volt valve regulated monoblocs connected in series enclosed in a po...

Page 5: ...ately Clothing contaminated by acid should be washed in water Electrolyte is highly corrosive In the normal operation of this battery contact with acid isn t possible If the cell containers are damage...

Page 6: ...ampere discharge for 1 hour down to a battery voltage of 20 volts By conventional definition the battery is deemed airworthy if it delivers its rated capacity for 48 minutes down to a voltage of 20 vo...

Page 7: ...administered in accordance with paragraph 9 However it is advisable to conduct an inspection and open circuit voltage check after 12 months and top up charge in accordance with paragraph 9 if necessar...

Page 8: ...rity Nominal battery voltage and number of cells Rated capacity Safety instructions where applicable Warning Short circuit currents will exceed 2000 amps all tools must be insulated Care must be taken...

Page 9: ...ttery can be issued for service 8 2 4 If the OCV is equal to or less than 25 3 volts but greater than 20 0 volts the battery needs to be charged 8 2 4 1 Charge the battery in accordance with paragraph...

Page 10: ...he exterior of the battery casing for signs of damage and cracks Examine the battery terminal for signs of damage corrosion and water dirt ingress clean as necessary Always ensure that the battery lid...

Page 11: ...one hour rate and measuring the time required in minutes to reach the cut off voltage Discharge the battery at the appropriate constant current value found in Figure 5 at 20 2 C to an end voltage of 2...

Page 12: ...y in accordance with paragraph 9 and notify EnerSys or your distributor of failure If the battery has an OCV of less than 20 volts it is considered to have been abused Over discharging the battery to...

Page 13: ...lass 8 Proper Shipping Name BATTERIES WET NON SPILLABLE electric storage Packing Group ADR not assigned Label required Corrosive ADR RID New and spent batteries are exempt from all ADR RID special pro...

Page 14: ...ashers and metal strip laminations from the rear monobloc terminals e Remove and discard the nuts and washers from the front terminals and lift off the laminations Note Do not remove the front laminat...

Page 15: ...ne maintenance or unscheduled maintenance vii Date of battery returned to storage viii Date of any failures ix Date of any returns to manufacturer x OCV prior to any discharge Dispose of the battery i...

Page 16: ...V Elcon None 38 0 9750E0640 9750E0654 25Ah 24V Elcon None 27 0 9750E0645 25Ah 24V Elcon 1 27 0 9750E0647 9750E0652 25Ah 24V Elcon 1 27 0 9750E0650 25Ah 24V Spade None 27 0 9750E0658 25Ah 24V Canon 1 2...

Page 17: ...e as per paragraph 13 0 Issue Battery Reject battery Charge battery as per paragraph 9 0 Charge battery as per paragraph 9 0 Charge battery as per paragraph 9 0 25 5 Volts 25 3 25 5 Volts 25 3 Volts 2...

Page 18: ...attery as per paragraph 9 0 48 minutes Second time 48 minutes First time 48 minutes Capacity test as per paragraph 12 0 Stand for 4 hours Follow Rejection procedure as per paragraph 13 0 Reject batter...

Page 19: ...19 Intentionally Left Blank...

Page 20: ...n support your requirements through our vast network of approved maintenance distributors EnerSys EMEA EnerSys EMEA EH Europe GmbH EH Europe GmbH L wenstrasse 32 L wenstrasse 32 8001 Z rich 8001 Z ric...

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