TYM T233 HST, Руководство по обслуживанию

Страница: 192 / 232

1) Required tools
-6mm set screw wrench and torque Wrench
-19mm spanner and torque wrench
-22mm spanner and screw wrench
-conventional screw driver[3mm(0.12 in) in
blade width]
-plastic rod [Ø10mm(Ø0.394 in)]
Oil stone,cleanser,tweezers,etc.
2) Tightening torque
Description Size Tightening torque
Kgf.m(ft.lbs)
Plug M16 3.5 (25.3)
Plug M14 2.5 (18.1)
Sunk Plug PT /4 2.5 (18.1)
Spool head M6 0.8 (5.8)
Stopper bolt M6 0.8 (5.8)
3) Disassembly
Note:
The spool and stopper bolt are tightened with
each other with adhesive applied to their threads,
so they should not be separated unless required.
by removing the stopper bolt,the poppet and
spring can be taken out of the spool.
-Pilot spool and related parts.
Remove the plugs from both sides and take out
the spring and push rod.
The pilot spool set can be pushed out from the
push rod side with a Ø10 mm(Ø0.394 in) rod.
When pushing,put the rod on the sleeve,not the
spool.
Note:
The spool and sleeve cannot be separated from
each other.
4) Reassembly
-Inspection of the disassembled parts.
Place all the disassembled parts side by side on
5. SECTION : SERVICING INSTRUCTIONS.
9-31
-Main spool and related parts.
Remove the snap ring E and draw out the main
spool carefully.
Note:
The main spool and spool head are screw-fitted,
so they can be separated from each other.But
they are tightened with adhesive applied,so they
should not be disassembled unless required.
-Holding check valve and related parts.
Remove the plug and take out the spring.The
poppet can come out only by slanting the casing,
and if not,remove it with pliers.
-Unloading valve(1): compensator
Remove the plugs from both sides and take out
the spring and spool.
-Unloading valve(2)
Remove the plugs from both sides and take out
the spring and spool.
Place all the disassembled parts side by side on
a clean surface.Check o-rings for damage and
replace defective ones.Inspect the friction
surfaces of the spools, poppets,and casing for
flaws like scratches.Correct slight flaw with an
oil stone and wash corrected parts in a cleanser.
-Main spool and related parts.
When the head is disassembled,it should be
tighten and locked securely using adhesive.
Before retaining the spool with the snap ring E,
make sure that the spool slides smoothing
within the casing.
-Holding check valve and related parts