Troy-Bilt 14066 - Manual (Page 30)

SER¥iC
Control Val ¥0
Insp
or da!
Inspect .
damage.
Inspect Lift
for excessi-
Note:
If Float Spoo;
or tends to be
tent Spool” w
indicated and
ed.
Valve Body for wear
:ei Seat for wear or
/8 Spool “Detent Spool”
atent area.
)t stay in “Detent” position
;t to get into “Detent”, “De-
e;or weak Detent Springs are
3Cted parts should be repiac-
Inspect Valve Spool Return Springs for evidence
of wear/damage. ^
Note:
if Valve Spool(s) was not centering properly and
Valve Spool slides freely in Valve Body a weak or
broken return spring is indicated.
Inspect Relief Valve Spring for damage and
distortion.
Inspect Load Check Poppets and Poppet Return
Springs for damage and distortion.
It is recommended that all 0 Rings, be replaced
during Valve Service.
Valve Spools
Assemble Spooi Return Springs on Vo.ve Spools
if they /vere removed previ. usiy.
Sheri' S^ ''rsg ■ used on
Standard 3cod
Lang Spring - used cn Float Spcci,
Coat Valve Scools with clean hydraulic oii and
carefully instaii in Valve Boay. Install End Cap
and De;ent Cap mounting screws.
Note:
1 .
2 .
Extreme care should be taken during Valve
Spooi installations to ensure O Rings are
not damaged.
“Float” Valve Spool is installed in Valve
Body adjacent to Relief Valve.
Following Detent Cap installation, install Detent
Balls, Springs and Caps.
Load Check Poppets
Coat Load Check Poppets with clean hydraulic
oil and place in Valve Body followed by Load
Check Springs and Plugs.
Note:
New 0 Rings should be installed on Plugs.
Assembly
Refer to illustration for reference to Parts
Assembly.
Thoroughly clean and dry all parts.
Carefully install the four O Rings in the Valve
Body Spool bore 0 Ring grooves.
Note:
Coat 0 Rings with clean hydraulic oil prior to in­
stallation.
90-7