Yanmar YM276 Service Manual page 413

HYDRAULIC LIFT AND IMPLE
GENERAL
CAUTION:
Before attempting t o remove or disasemble
A
any hydraulic components, turn engine off. lower lift arm,
and cycle all hydraulic controls to relieve any residual
hydraulic oil pressure.
The hydraulic l i f t assembly consists of four components.
Accessing a part in the hydraulic system for servicing usually
involves removing one or two of the four components listed below.
Some parts, however, do not require such removals.
A
-
Hydraulic Cylinder Case
B -Cylinder
Head
c
-side
c -
The each hydraulic system part is to be disassembled with the
following component removals.
1. Cylinder head removal
far Main Relief Valve
8
Safety Valve
Stop Valve
2. Side Case removal
for Main Spool
Load Check Valve
Flow Control Valve
Mechanical Check Valve
Unload Valve
Control Lever Linkage
3.
Hydraulic cylinder case
for Hydraulic Piston
Lifting Crank and Shaft
Feedback Rod Adjustment
4. Implement hitches
for 3-point Hitch
Drawbar
Upper Link Hinge
Draft Control Spring
SME2760111~04 YMZ76and276D
Kinornoto, Printed in Japan
iMENT HITCHES
70-15-1