Figure 3-5. Control valve removal.

3-13.

Winch

Control

Valve

(b) Remove the plug (23), spring (24) and

ball (25).

a. Removal.

the

( 1 ) Remove valve cover setscrews ((1), fig. 3-

r o d end through the valve body as shown.

5) and loosen push-pull cable locknuts on the valve

CAUTION

spools.

Do not pull the rod end of the spool

( 2 ) Remove cables from handlever bracket on

after the ball (25) has been removed or

tractor and unscrew the cable ends from the valve

the preformed packing (8) on the spool

s p o o l s by turning the free ends of the cables "B".

will come in contact with a dump port

(3) Remove the pump supply hose (3) and

and be damaged.

nipple (4).

(2)

rein-

and

Selector

s p o o l inspection

(4) Remove the valve cover.

stallation.

( 5 ) Detach tube assembly (5) and remove tee

(a) Inspect for nicks on the spool. Light

(6).

n i c k s may be removed by lapping but if there are

(6) Disconnect the clutch and brake hoses (7).

d e e p nicks spool must be replaced.

( 7 ) Remove socket head capscrews attaching

(b) R e p l a c e p r e f o r m e d p a c k i n g s ( 8 ) a n d

valve (8) to winch.

(9).

( 8 ) Remove valve (8) from winch. Remove or

(c) Use a light oil on all parts before

s e c u r e the preformed packing that seals between

reassembly. Install preformed packing (9) and

the valve and the winch. Be sure preformed

install spool in reverse manner from removal.

packing is replaced when reinstalling valve on

Preformed packing (8) is replaced last and does not

winch to avoid seepage around base of control

p a s s over port.

valve.

CAUTION

(9) Reverse above procedure for valve in-

not

pull

on spool

(7)

get

s t a l l a t i o n and check for proper stroke adjustment

preformed packing (8) compressed into

b e t w e e n the push-pull cables and spools.

spool bore. Tap end of spool to ac-

complish

this,

and avoid overtravel

causing damage to preformed packing

(8) in internal ports.

(3) B r a k e i n c h i n g s p o o l r e m o v a l .

(a) Plug

(16)

spring

(15)

may

r e m o v e d without removing the inching spool (13)

by removing snap ring (17).

(b) To remove spool (13) remove capscrews

(5) and detach the valve body (29) from the

support (30).

(c) Remove the spool stop capscrew (18) on

the under side of the valve body while pressing

gently on the inching spool to take the load off the

stop.

(d) R e m o v e t h e s p o o l a n d r e t u r n s p r i n g

(14).

(4) I n c h i n g s p o o l i n s p e c t i o n a n d a s s e m b l y .

(a) C h e c k b o r e a n d s p o o l ( 1 3 ) f o r d i r t o r

n i c k s . Remove light nicks by lapping. Deep nicks

n e c e s s i t a t e new parts.

(b) Oil all parts generously.

Place new

preformed packing firmly in groove

and install

spring (14) and spool. Tap spool gently

to pass over

Figure 3-5. Control valve removal.

p r e f o r m e d packing and while holding

in position,

replace spool stop capscrew (18).

b. Disassembly and Reassembly.

( c ) Clean out socket for travel spring (15),

(1) Selector spool removal.

g r e a s e lightly and replace spring and cable plug

(16).

(5) R e l i e f v a l v e a n d q u i c k r e l e a s e v a l v e .

(a) R e m o v e r e t a i n e r ( 2 2 ) , w a s h e r s ( 2 1 ) ,

spring (20), and piston (19). The washers (21)

(a) Remove the snap ring (12), washer (11)

and spring (10).

regulate

relief

valve

pressure.

Add

washers

3-6