Manitowoc Grove CD3340B User Manual

GROVE 11-25
CD3340B/YB4411 STRUCTURAL
11
Published 04/07/2015 Control # 569-00
4. The motor and cartridge valve are not serviceable in the
field.
Brake Section
Disassembly
1. Remove the capscrews (14, Figure 11-46) holding the
motor cover (12) in place (Figure 11-47). Spring
pressure will raise the cover as the capscrews are
loosened. Carefully remove cover (12, Figure 11-46)
from the brake housing (1).
2. Remove the springs (16, Figure 11-46) from the piston
(10) (see Figure 11-48) and check them for free height.
Each spring should be 30.5 mm (1.200 in) long with no
force on them.
3. Remove the piston (10, Figure 11-46) by installing two
pieces of 3/8 NC all-thread (Figure 11-48) in the bottom
of two spring pockets. Using jam nuts, screw the all-
thread pieces in evenly until the piston is clear of the
housing. An alternate way of removing the piston is use
a portable power unit or air pressure to pressurized the
brake cavity and blow the piston out of the bore.
FIGURE 11-45
P0199
CAUTION
Be careful when using pressure to remove the piston.
Piston could expel at a great speed and force causing
personal injury.
Reference Only

Manitowoc Grove CD3340B Specifications

General

Brand	Manitowoc
Model	Grove CD3340B
Category	Construction Equipment
Language	English