THE COUNTER BALANCE V FOR THE HYD SYSTEM REGULATES THE SPEED AT WHICH THE LANDING GEAR DESENDS.
1 INITIAL ADJUSTMENT OF THE COUNTER BALANCE V SHOULD BE DONE DURING HYD SYSTEM STARTUP.
2 RAISED THE AIRCRAFT ON JACKS, AND RAISED THE LANDING GEAR
3 TURN ELECTRICAL POWER "OFF" AND VERIFY THE LANDING GEAR STAYS UP. ADJUST THE COUNTER BALANCE V AS REQUIRED TO ENSURE THE LANDING GEAR STAYS UP WHEN THE ELECTRICAL POWER IS "OFF".
4 TURN ELECTRICAL POWER "ON"
5 LOWER THE LANDING GEAR AND OBSERVE THE RATE OF DESENT AND THE OPERATION OF THE HYD PUMP.
6 RAISE AND LOWER THE GEAR AND ADJUST THE COUNTER BALANCE V, AS REQUIRED UNTIL THE DESENT OF THE LANDING GEAR DOES NOT OVER RUN THR HYD PUMP.
8 AGAIN VERIFY THAT THE LANDING GEAR STAYS UP WHEN ELECTRICAL POWER IS "OFF" 9 CONTINUE TO ADJUST THE COUNTER BALANCE V UNTIL BOTH CONDITIONS ARE SATISFIED.
10 LOWER THE LANDING GEAR AND ENSURE THET HAVE LOCKED INTO PLACE
