SECTION 35 - HYDRAULIC SYSTEM
35-61
8. Without High Flow - Inspect the pump gear teeth,
1, for excessive wear.
The gear shaft assemblies should measure
greater than or equal to 0.748″ (19.0 mm) in the
bushing area, 2. LS160 gear should be at least
22.56 mm (0.888″) wide. LS170 gears should be
at least 22.76 mm (1.014″) wide. Replace the
gears if they do not meet specifications.
NOTE: If replacement of the gear assemblies is
necessary, the gear assemblies should be replaced
in pairs.
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2
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HYDRAULIC SYSTEM PUMP
REASSEMBLY/ INSTALLATION (WITHOUT
HIGH FLOW)
NOTE: If installing a new pump, refer to “New
Hydraulic System Pump Installation (Without High
Flow)” below.
1. Coat all parts with a thin coat of petroleum jelly or
oil to aid in reassembly.
2. Clean the mounting plate surface and hydrostat-
ic pump housing thoroughly and install a new O
ring, 1.
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2
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3. Install the seal, 1, and backup gasket 2, on the
wear plate, 3. BE SURE that the flat area, 4, on
the gasket AND seal, 5, are properly aligned and
lay flat when installed in the wear plate.
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