yth

I got one Marui M4, had upgrade to GuarderSp90 spring and Marui EG 1000 motor, it works before.
This holiday I open the gear box and just put some grease on the gear and tested again, it doesn't work, - the motor work, but seems very hard to pull the cyclinder ,need to pull the trigger many times to finish one single shoot, I tested with one China 1100 mah battery.
(1)Is it the battery not enough power to pull the gear ?
(2)or the motor spring/motor gear not fitted ?

yth

Thanks brother, is it usual power to use 8.4/1500 mah for those general setting, does it hurt the gear/motor, I always use my RC car battery eg. 7.2 watt..(  cause I am not expert and never join war game only test the gun at home)..thx

yth

Thanks brother hwtang.,I tested the battery and motor without close the grip - it works !
But when I close the grip, it doesn't work , I try to pull the motor in with my thumb, it need to pull the trigger many times to finish one single shoot, and cannot auto fire.
I follow the manual and open and close the gear box 5 times , same situation.
I will tested it with more power battery first , if still the same,I think need spent some money at KW St. to ask for help...thanks.

yth

Thanks all brother, its very heipful, will try again and report..thanks.

yth

I got one pack Systema shims now, is it  put one piece shim on both side of each gear will be OK?...thx

yth

4. 夾好波箱 , 用手轉動齒輪 (通常係轉拉橋齒 , 即係最頂果隻)
   轉得郁 --> 用工具係軸位兩邊篤下 , 有鬆位就揭開佢 , 係鬆果隻齒攝緊少少 , 無太多鬆位而又轉得順就成功
   轉唔郁 --> 用工具係軸位兩邊篤下 , 如果有隻齒兩邊篤連少少虛位都無 , 就攝少一隻介子 , 再重覆步驟試

very clear and helpful for beginner like me, will try again and report...many thanks brother odaan.

yth

REPORT - the latest situation of my M4 gear box : I had place shims for the gears but still jammed when it contact with the motor.....
But finally I get what happen...the reason was the red and black wire inside the grip were not place very smooth, it affect the angle of the motor gear when it fit in the gear box, when I place the wire smooth and feel the motor get in freely, the gear box work !!!...really ..**XYZ...