Service Manual

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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

Parker Hannifin Corporation

Hydraulic Pump/Motor Division

Greeneville, Tennessee USA