Mercury 135 Optimax User Manual

OUTBOARD INSTALLATION
66
• Do not use deep cycle batteries. Engines must use a marine starting battery with 1000 MCA, 800
CCA or 180 Ah.
• When connecting engine battery, hex nuts must be used to secure battery leads to battery posts.
Torque nuts to specification.
Description Nm lb. in. lb. ft.
Hex nuts 13.5 120
IMPORTANT: Battery cable size and length is critical. Refer to engine installation manual for size
requirements.
Decal needs to be placed on or near battery box for future service reference. One 5/16 in. and one
3/8 in. hex nut are supplied per battery for wing nut replacement. Metric hex nuts are not supplied.
Place decal on or near battery box for future service
reference. 5/16" and 3/8" hex nuts supplied for
wing nut replacement. Metric hex nuts not supplied.
NOTICE - DTS & Optimax Engines
37-895387
IMPORTANT:
Battery cable size and length is critical. Refer to
engine installation manual for size requirements.
DO NOT
USE WING
NUTS.
DO NOT USE DEEP CYCLE BATTERIES!
13.5Nm (120 lbs. in.)
DTS (Digital Throttle and Shift) applications and
Optimax engines must use a marine starting
battery with 1000 MCA, 800 CCA, or 180 Ah.
rating.
3486
BATTERY CABLE CONNECTIONS
Single Outboard
(+)(+)
(-)(-)
b
a
c
15496
a - Red sleeve - positive (+)
b - Black sleeve - negative (–)
c - Cranking battery

Mercury 135 Optimax Specifications

General

Starting	Electric
Exhaust	Through Prop
Horsepower	135 HP
Fuel Induction System	Direct Fuel Injection
Alternator Amp	60 Amp
Shaft Length	20", 25"
Full Throttle RPM	5250-5750
Steering	Hydraulic