freightliner 108SD 2021, Driver Manual, Page: 144 / 191

46–04 Power Steering Gear
Lubrication
TRW TAS and THP Series
Sector Shaft
NOTICE
Apply grease to the sector shaft with a hand-type
grease gun only. Use of a high-pressure power
grease gun will supply grease too quickly and
could affect the high pressure seal, contaminating
the hydraulic fluid.
Using a hand-type grease gun, apply NLGI Grade 2
or 3 multipurpose chassis grease until it starts to
come out past the sector shaft seal.
Fig. 3 .
46–05 Drag Link Lubrication
1. Using a clean rag, wipe all dirt from both drag
link grease fittings; see
Fig. 4 .
2. Using a grease gun, apply clean grease at the
grease fittings until old grease is forced out of
the socket. Use multipurpose chassis grease
NLGI Grade 2 (8% 12-hydroxy lithium stearate
grease) or NLGI Grade 1 (6% 12-hydroxy lithium
stearate grease). Grade 2 is preferred.
f461071 10/07/2016
1
1. Sector Shaft Grease Fitting
Fig. 3, TRW TAS Series Sector Shaft Lubrication
f461072 10/07/2016
2
1
1. Grease Fitting at Pitman Arm
2. Grease Fitting at Axle Steering Arm
Fig. 4, Drag Link
Steering
46
108SD and 114SD Maintenance Manual, September 2015
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