3-1-1
Orig
CD373
Chapter 3
MZ Tow Tractor Section 1
SECTION 1: OVERHAUL SCHEDULES
A. RECOMMENDED OVERHAUL PERIODS
1. General
The following overhaul periods are approximate and can vary greatly due to different
operating conditions. Units operating in extreme conditions such as high or low temperatures,
long periods of sustained operation, continued operation in sand or dust or continued
exposure to sea air or moisture require careful, regular inspections. Overhaul periods may be
adjusted with time and experience in operating this tractor. If an overhaul of a component or
system is anticipated or required, the procedures that cover that component or system should
be read and fully understood prior to attempting any part of the overhaul.
WARNING: DISCONNECT BATTERY AND DISCHARGE CAPACITORS
PRIOR TO BEGINNING ANY INTERNAL MAINTENANCE
OPERATION. REFER TO CHAPTER 2, SECTION 3, PARAGRAPH A.1.
FOR DISCHARGE PROCEDURE.
B. STEER AXLE
The steer axle does not require a scheduled overhaul period. Overhaul the axle when external leakage
occurs, or noise levels reveal excessive component wear.
C. HYDRAULIC PUMP
Check pump motor brushes for wear every 200 hours. Overhaul pump when internal or external
leakage is evident or after 2,500 hours.
D. MASTER CYLINDER
Refer to troubleshooting section to isolate problems with master cylinder. Master cylinder should be
rebuilt if fluid leakage is evident and when significant brake pressure is being lost after all other
possible causes have been eliminated.
To Next Page
Loading...