Toro Workman 3000 Series Service Manual page 396

6. Inspect female push rod (16), bolt adjuster (17), and
adjuster sleeve (18) for rust, corrosion, bending, and fa ­
tigue. Replace parts as necessary.
Note: The brake cylinder assembly consists of the fol­
lowing: bleed screw (4), bleed screw cap (5), body (6),
spring (9), L–type seals (10), pistons (11), and dust cov ­
ers (12)
7. Inspect brake cylinder assembly.
Use eye protection such as goggles when
using compressed air
A. Clean all metal parts with isopropyl alcohol.
Clean out and dry grooves and passageways with
compressed air. Make sure body (6) bore and other
parts are thoroughly cleaned.
B. Replace body or piston (11) if body bore or piston
is pitted, scored, excessively worn, or cracked.
C. Replace spring (9) if distorted, worn, or it does
not compress.
Assembly (Fig. 6 and 7)
1. Assemble brake cylinder assembly as follows:
A. Apply a thin coat of clean brake fluid to the new
L–type seals (10). Install seals into the groove of the
pistons (11).
B. Apply a thin coat of clean brake fluid to the bore
of the body (6) and pistons. Install one piston, the
spring (9), and then the other piston carefully into
the body.
C. Install new dust covers (12) onto the body.
D. Secure body to back plate (2) with both cap
screws and lock washers (1). Torque cap screws
from 49 to 97 in–lb (56 to 112 kg–cm).
2. Clean back plate (2). Lubricate shoe contact areas
with a thin coat of grease.
3. Apply a light coat of grease to the threaded areas of
the adjuster assembly (27).
4. Position shoe and lining set (13) onto the back plate
(5). Secure shoes with hold down pins (26), hold down
spring (23), and hold down washers (22).
5. Install lower shoe spring (15) to both brake shoes
(13).
Front Wheell Drive Section (4WD)
CAUTION
6. Install adjuster assembly (27) in the slots on the
brake shoes (13). Install pawl (19) into brake shoe and
onto top of bolt adjuster (17).
7. Install adjuster spring (20) to pawl (19) and brake
shoe (13).
8. Install upper shoe spring (14) to both brake shoes
(13).
Installation (Fig. 2)
1. If the brake assembly (5) was removed from the axle
housing (28), install assembly as follows:
A. Secure brake assembly to the axle housing with
four cap screws (6) and lock washers (7).
IMPORTANT:Make sure brake hose connections are
clean and free of dirt.
B. Unplug front brake hose (13). Connect brake
tube (8) to the brake assembly and brake hose.
2. Insert small spacer and then large spacer (30) onto
the stub axle (31). Make sure bearing (14) cone is suffi­
ciently greased.
3. Insert stub axle (31), bearing (14) cone, and
spacers into the axle housing and onto the splined end
of the CV joint (15).
4. Secure stub axle (31) to the threaded end of the CV
joint (15) with the flat washer (35) and flange lock nut
(36). Torque flange lock nut from 170 to 200 ft–lb (23.5
to 27.7 kg–cm).
Note: Make sure access hole on both the brake drum
and stub axle align when installed.
5. Install brake drum (32) to stub axle (31) with cap
screws (3).
6. Adjust brake shoes (13) as follows (Fig. 6).
A. Align access hole in the brake drum with the bolt
adjuster (17).
B. Rotate bolt adjuster so adjuster assembly (27)
length makes both brake shoes (13) contact the
brake drum.
C. Back off bolt adjuster until drum rotates freely.
7. Bleed front brakes (see Bleeding the Brakes in the
Repairs section of Chapter 8 – Steering, Brakes, and
Suspension).
8. Secure wheel to the brake drum (32) with five lug
nuts (1). Lower front wheel to the ground. Torque lug
nuts from 45 to 55 ft–lb (6.2 to 7.6 kg–m).
Rev. B
Page 10 – 10 Workman 4000 Series