Bush Hog SM 60 - Manual (Page 20)

5-1 BASIC MACHINE ASSEMBLY
BASE UNIT IS EXTREMELY TOP
HEAVY WHEN DISCONNECTED
FROM CUTTER DECK AND SHOULD
BE MOVED ONLY BY CONNECTING
TO TRACTOR 3-POINT HITCH. DO
NOT REMOVE WOODEN SUPPORT
UNLESS UNIT IS CONNECTED TO
TRACTOR 3-POINT HITCH OR OVER-
TURNING WILL RESULT.
A. Connect base unit to tractor 3-point hitch.
B. Remove wooden support.
C. With cutter deck flat on ground, connect it to
base unit using pivot pin, two washers and roll pins.
D. Connect lift linkage to cutter deck with pin and
roll pins. It may be necessary to remove cylinder
port caps to extend cylinder. With port caps
removed, watch out for oil spraying out of cylinder
ports.
E. Remove cover plate and gasket from spindle
housing on cutter deck. Remove O-ring gasket
packed inside spindle housing and retain for motor
installation.
F. Fill spindle housing with 26 fl. oz. of EP80W-
90 gear oil or until oil reaches check plug.
G. Mount hydraulic motor to spindle housing using
O-ring gasket to seal. Fasten with nuts, bolts and
lockwashers removed from cover plate.
H. Assemble hydraulic valve kit (Fig. 5-1) or tractor
kit (Fig. 5-2). Use pipe joint compound on pipe fit-
tings only. Do not use thread tape. Do not over-
tighten fittings.
I. Check hydraulic oil level. Fill as needed to bring
oil level to bottom of filler strainer. See paragraph 4-
3 for compatible hydraulic oils.
Fold Cyl.
Slide Cyl.
Slide Cyl.
Fold Cyl.
17
Figure 5-1 Hydraulic Valve Kit
Hyd. Hose 120”
Hyd. Valve
90° Elbow Adaptor 3/4” JIC to 3/4” ORB (Not Shown)
or
90° Elbow Adaptor 3/4” JIC to 1/2” NPT
90° Elbow
1-1/16” ORB to 3/4” JIC
Straight Adaptor
7/8” ORB to 9/16” JIC
Hyd. Hose 144”
90° Elbow
Hyd. Fitting
90° Elbow
9/16” JIC Male to Female
Hyd. Hose 96”
90° Elbows
Hyd. Hose 108”
90° Elbow
7/8” ORB to 3/4” JIC
Breather Plug
(Shipped in Cylinder, not Part of Hyd. KIt
Figure 5-2 Tractor Hydraulic Kit
Straight Adaptor 1/2” NPT to 9/16” JIC
or
Straight Adaptor 3/4” ORB to 9/16” JIC
Hyd. Hose 108” Hyd. Hose 108”
Hyd. Hose 48” 90° Elbows
90° Elbow
Breather Plug
(Sjipped in Cylinder, not Part of Hyd. Kit)
CAUTON