M578 Recover Vehicles .
.± 
You don't need to drain your vehi-
cle's hydraulIc reservoir if you have to 
replace any hydraulic line between the 
reservoir and the slip ring. 
Save yourself from catching 
140 
gallons of oil in a very large conTainer 
by sealing oF the reservoir bottom l±ke 
so: 
1. 
Remove the six screws and 
washe±s mounting the fille± Neck 
fLange to the ±ese²oir. Remove the 
fLAnGe AnD To g³ske´. Be carefuL 
with the gaske´ o± you'Ll have to 
replace them. If you need them, use 
NSN 5330-±0²991-801. 
o
18 
2² 
OpeN the rese²oi± fµlLe± cap and 
turn 
the 
¶-handLe 
seve±al 
tu±ns 
counte±clockwise. 
·hen puLL the 
¶ -Handle strAight 
uP and the whole 
¸ 
straµne±¹ilter 
assembly wµLl 
come witH it. 
JAN 85 
3³ 
ºet a screwd±ive± and remove 
the screws And b±acket to Detach the 
filte± f±om the ±est of the AssembLy. 
·. 
³´ 
¶ake out the co»e± pµn thAt 
keePs the inne± anD outer hanDles 
togEthe±. 
¼ull up on the inner hAndle untiL the 
whole thing is as long as it was 
before you took the fµLte± oF. 
JAn 8± 
19 
5. 
Keep it at that leNgth by Pu»ing 
the co»e± pµn back to lock the inner 
And oute± handLes togethe±½ 
InsteAd of the co»e± pin, some 
hAnDles hAve a sp±ing-loaded stoP. 
Wo¾ the Stop by P±e¿µng the bu»on 
and sÀµding the handLes to the maxÁ
imum lock posµtion. 
6´ 
Âowe± the entµ±e a¿embly bAck 
into the ±eseÃoµ± and tu±n the handle 
clockwise to sc±ew the threaded pLug 
µnto the th±eads at the bottom of the 
±ese²oi±. 
Äeal off 
rese²Åi± 
wiÆh pLug 
¶he plug keeps the hyd±Aulic oµL 
in the ±ese²oµ± so oiL lµnes beTeen 
the ±eseÃoµ± And th8 hyDÇulic pumP 
can Èe chAngeD wµÉh 
a 
lµ»le leakAge 
As possµble. 
After yoU've Installed the neW lIne, 
reverse these procedUres, pUt the f²lter 
BacK oN the outer handle and screW the 
assemBly BacK Into place³ 
´oW that's a lot easier than Moving 
14µ 
gallons oµ hydraUlIc oil tWIce, 
rIght?