Rear Brakes; Description - Manitowoc Grove TMS800E Service And Maintenance Manual

UNDERCARRIAGE
Camshaft Installation
1. Check the camshaft for cracks, wear and corrosion.
Check the cam head, bearing journals and splines.
Replace worn or damaged camshafts
2. Install new camshaft bushings and seals whenever you
install a new camshaft.
3. Tighten all spider
(Figure 8-25).
Bolt Size
7/16" - 20 81 - 102
1/2" - 20 115 - 156
9/16" - 18 176 - 224
5/8" - 18 244 - 312
7/8" - 9 598 - 789
4. Use a seal driver to install new camshaft seals and new
bushings into the cast spider and camshaft bracket
(Figure 8-26).
NOTE: Install the seals with the seal lips toward the slack
adjuster to ensure grease purges at the slack end
(Figure 8-27).
5. If the camshaft bracket has been removed, install the
chamber bracket seal and bracket onto the spider.
8-28
bolts to the correct
6599-4
Nm lb-ft
60 - 75
85 - 115
130 - 165
180 - 230
440 - 580
FIGURE 8-25
6599-5
FIGURE 8-26
Published 01-29-2014, Control # 496-00
Tighten the
(Figure 8-25).
torque
1
Item
1 Seal Lip
2 Camshaft Bracket
3 Spider

REAR BRAKES

Description

The rear brakes are air actuated brakes which are cam
operated and that employ shoe and lining assemblies.
Automatic slack adjusters maintain the proper adjustment for
the push rod stroke and lining-to-drum clearance. The cam is
actuated by the air chamber.
Disassembly
1. Raise the crane on outriggers so that the rear wheels
are off the ground.
Do not attempt to do any type of work under a crane that
is supported by only the outriggers or jacks.
2. Place jack stands under the frame where the wheels are
to be removed. Support with safety stand.
3. Cage the spring brake with the caging bolt provided.
4. Fully release the slack adjuster so that the shoes retract
allowing the drums to clear the linings. Refer to Slack
Adjuster in this section.
5. Remove the brake drum.
TMS800E SERVICE MANUAL
capscrews to the correct
2
3
6599-6
FIGURE 8-27

Description

CAUTION
torque
1