Service Manual

HY13-1521-M2/US Service Manual
General Information Series HB Hydrostatic Transmission
WARNING A warning describes hazards or unsafe practices which could result in severe
personal injury or death.
CAUTION
A caution describes hazards or unsafe practices which could result in personal injury or
product or property damage.
NOTE A note gives key information to make fo
llowing a procedure easier or quicker.
Disclaimer
This Service Manual has been prepared by Parker Hannifin Corporation for reference and use by mechanics
who have been trained to repair and service hydraulic pumps on commercial and non-commercial equipment
applications. Parker Hannifin Corporation has exercised reasonable care and diligence to present accurate, clear
and complete information and instructions regarding the techniques and tools required for maintaining, repairing
and servicing the Parker UHT Series. Since this is a general Service Manual, the photographs and illustrations
may not look exactly like the UHT being serviced. The procedures, therefore, must be carefully read and
understood before servicing.
If inspection or testing reveals evidence of abnormal wear or damage to the UHT or if you encounter
circumstances not covered in the Manual, STOP - CONSULT THE EQUIPMENT MANUFACTURER’S SERVICE
MANUAL AND WARRANTY. DO NOT TRY TO REPAIR OR SERVICE A UHT Series WHICH HAS BEEN
DAMAGED OR INCLUDES ANY PART THAT SHOWS EXCESSIVE WEAR UNLESS THE DAMAGED AND
WORN PARTS ARE REPLACED WITH ORIGINAL PARKER REPLACEMENT AND SERVICE PARTS AND
THE UNIT IS RESTORED TO PARKER SPECIFICATIONS FOR THE UHT Series.
It is the responsibility of the mechanic performing the maintenance, repairs or service on a particular UHT Series
to (a) inspect the unit for abnormal wear and damage, (b) choose a repair procedure which will not endanger
his/her safety, the safety of others, the equipment or the safe operation of the UHT Series, and (c) fully inspect
and test the UHT Series and the hydraulic system to ensure that the repair or service of the UHT Series has
been properly performed and that the UHT Series and hydraulic system will function properly.
Conversions
Inches Mm Inches mm
.020 .511 1.060 26.92
.021 .531 1.295 32.89
.029 .741 1.297 32.94
.030 .760 1.396 35.46
.111 2.81 1.398 35.51
.119 3.02 1.620 41.15
.152 3.86 1.622 41.20
.160 4.06 1.983 50.37
.296 7.52 1.985 50.42
.304 7.72 2.120 53.85
.460 11.68 2.122 53.90
.470 11.94 2.233 56.72
.500 12.70 2.235 56.77
.585 14.86 2.483 63.07
.595 15.11 2.485 63.12
.660 16.76 2.500 63.5
.675 17.15 2.88 73.2
1.058 26.87
4
Parker Hannifin Corporation
Hydraulic Pump/Motor Division
Greeneville, Tennessee USA