PS Magazine - TB 43-PS-504
PS, The Preventative Maintenance Monthly
ISSUE 504
NOVEMBER 1994
;
AGPU
.±.
K£EP THT L£\eL
I
T
o many aviatIoN grouNd power uNits (AGPU) are
biTing the DusT becausE. of burned ouT hydraulic pumps±
²he problem Is, They're beiNg run without enough
hydRauLIc F³uid´
Check The reserVoirµs ¶ill level gauge be¶ORe a·D
duRiNg operatIoN¸
Be¹re you swºTch on youR AGPU» maKe sure The
hydraulic reseRvoir is aT least 3/4 f¼ll± ½¾w F¿uID Àevel
could resuÁT iN hyDraulic pump damage ö itÄs beÀow
That Àevel, aDd fÁuidÅ
ÆtÄs a good idea To marÇ The gauge at the ÈÉÊ fuËÀ level
with a red liNe and To label wiTh embosSIng tape, "Ìeep
F³uid above The red lINeÅÍ
ÎuRIng operaTionÏ checK the leveË oÐten To maKe sure
iT does noT falÑ belowÒ/Ó fullÔ Õf The ¶ËuID ÐalÁs below ThaT
level» SwiTch oÖ the unIT aNd aDd ×uIDÔ
pS
504
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NOV 94 -
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