Contamination Indicator

TM10-3930-242-12

Figure 4-47. Side shift roller chain, cylinder, and forks, removal and installation.

rough terrain forklift trucks are equipped

4-75. Hydraulic Lift Cylinder

with a filter contamination indicator

WARNING

mounted on the top of the reservoir and in

Before commencing work on the

place of the former filter cover plate. The

hydraulic lift cylinder, use supports

purpose of the contamination indicator is

provided to block up mast. Personal

to signal when the main hydraulic oil

injury or death may result from a falling

filter is in "by-pass" and is no longer

mast.

serviceable.

Inspect the hydraulic lift cylinders for cracks,

a. Removal. Remove the contamination indicator

breaks, worn pins, and leaks. Report defective

as illustrated in figure 4-48.

cylinders to direct support maintenance.

b. Cleaning and Inspection.

4-76. Contamination Indicator

(1) Clean all metal parts.

(2) Inspect mounting hardware for damage or

The purpose of the contamination indicator is to

signal when the main hydraulic oil filter is in "by-

excessive wear.

c. Repair. Repair all defective parts.

pass" and is no longer serviceable.

d. Installation. Install the contamination in-

NOTE

dicator as illustrated in figure 4-48.

As the result of an engineering change,

the hydraulic reservoir on late model