Chevrolet 70 Series 1970, Service Manual

Page: 31 / 841

LUBRICATION 0-24
HIGH TEMPERATURE GREASE (SPECIAL)
(SYMBOL “ S28” ON CHARTS)
The lubricant indicated by the sym bol "S28"m ustbe a w ater-proof,
n on -soap , sm ooth fib er g r e a se having a #1 N .L .G .I, stab le co n sisten cy ,
and m ust withstand extended high (500°F .) tem p eratu res. A g r e a se con­
taining Bentonite o r equivalent should be sa tisfa c to r y .
STOPMASTER BRAKE UNIT
At tim e of assem b ly a fter overhaul apply above lubricant to a rea s
indicated in "AIR BRAKES" (SEC. 5B) of th is manual.
IMPORTANT
The u se of proper engine o ils and o il change
in terv a ls a re your b est a ssu ra n c e o f continued
re lia b ility and perform ance from your GMC engine.
IMPORTANT
L ubricants Must B e Stored and D isp en sed in Such
a Manner That They W ill B e Clean and F r e e of
Contamination, Due to D irt o r Other Foreign M atter.
CHEVROLET SERIES 70-90 HEAVY DUTY TRUCK SHOP MANUAL