液压油油质标准

rhese are the maximum contamination limits based on a 100 millilitersan ple size. siz(
(10)
Drain and refill the hydraulic reservoir with new fluid. D Rerplacement, TASK 29-00-00-900-801.
Analysis is only required if contamination is suspected. lf contamination e. Cee,0S ,ds the maximum values specified, flush the system until values are below the maximum limit. rhe precision rrf + 10 ppm is appricable to total values in the range from 0 to 1{ll( 0J0 ppm. In the range from 1000 to 3000 ppm, the precision will decrease to I 50 ppm with some equipment.
4,050
sAE ARP698
Pafticle Size Rangel (Microns)
5to15
15to25
25to50 50to100
○ver100
720
"tlJ -l2l -t3l -t4l 'tsl 't6l
rr you thrnk
that there is contamination, then speak to your hydraulic alrjid-
Not Found by Test
AsTM D974 AsTM D445
supp"er Test△
11・ 【 2)
Viscosity,cs at1oo°
3778° c)
Organic Contamination
Elemental Contamlnauon★ ・
31★ 【 4】 【
⒓l
A Procedure with the precision that Follows: 50 ppm max. 50 ppm max. 50 ppm max. 200 ppm max. 500 ppm max.
C)
Specific Gravity77° F/77° F
(25° C/25°
AsTM D12170r ASTM D4o52
AsTM D63o40r lnfrared
Percent of Water By Weight
Neutra丨
izauon NO mg K0H/gm
F(at
1 5max 60to125
Calcium Potassium
sodium
Ch丨 o"ne
t4ppm t2ppm t3ppm
t
20 ppm
Sulfur Particulatel Contamination
± 10ppm
I51
NAs1638,Class9△ Gl
Maximum Number of Pilrlicles Allowed 128,000 22,800
卿
AIRCRAFT MAINTENANCE M
(e) Loca1° N0TE∶
n。
1】
737口 600`700∫ 8o0`9oo
、 NU`IAL
Afker you remove a】 id sampIe from th( hyd△ 'aulic reservoir, you can maKe an analysis ofthe1uid properties、 ″ hich shc Ⅳ in T Table 601. lf one of the fluid properties is rnore than the Iinη it,continu }thc‘ procedure.
TabIe6o1'29ˉ 11~00ˉ 993冖 8o3
Hvdrau"cF"Jid RMs
FLUID PRoPERTlEs
Visual
3丬 ⒈
Li:nits
来自百度文库
lN¨
sERVlCE FLuID LlMITs
TEsT PRoCEDuRE
∨isual
Must be transparent. Nlo phase separation precipitation. All colors are satisfactory 0970ˉ 1o66 0.8 max
this r task: ta Hydraulic Fluid
ˉˉ^ˉ
EFFECTlVlTY BEJ ALL
29■ 11■ 00
D633A101冖 BEJ
ECCN 9E991 BOEING PROPRIETARY - Copyright O Unpubtished Work -
page604 Od15/2017
for the test procedure.
For rr:utine hydraulic fluid analysis, it is not necessary to test for organic c elenrental contaminants. contamination is a quantity that is more than that in lhe base stock or the groLxt) ( items which you add. Compare the lpr of data from the fluid analysis; with the limits put on the new fluid.